Technical Handbook 2011

393
* Metrode Products Ltd is the registered Company Name but this is simplified to Metrode throughout this publication. TECHNICAL HANDBOOK CONTENTS Section Subject Page Introduction to Metrode * 2 Data Sheets: Introduction and explanatory notes 5 A. Low alloy steels 7 CrMo creep resisting consumables MnMo low alloy steels High toughness Ni bearing low alloy steels High strength low alloy steels B. Stainless steels 86 Martensitic stainless steels Austenitic stainless steels 309L and 309Mo and stainless steels Superaustenitic, lean duplex, duplex and superduplex stainless steels C. High temperature alloys 209 High carbon 300 series stainless steels High temperature 309 and 310 stainless steels High carbon austenitic alloys (including 330, 800, HP40) D. Nickel base alloys 261 182 type alloys 625 type alloys Alloy C types Specialist nickel base alloys Nickel based non-ferrous alloys E. Repair and maintenance 310 Cast iron Dissimilar welding Copper alloy consumables Hardfacing Special mild steel F. Submerged arc welding fluxes 357 Fluxes for use with low alloy CrMo, stainless steel and nickel base wires G. Other useful information 368 Abbreviations, element symbols, welding positions Schaeffler and WRC diagrams Conversions Packaging and storage Index 1 Product designations 377 Index 2 Consumable specifications 380 Index 3 Materials to be welded 387

description

Metrode - consumable

Transcript of Technical Handbook 2011

  • * Metrode Products Ltd is the registered Company Name but this is simplified to Metrode throughout this publication.

    TECHNICAL HANDBOOK CONTENTS

    Section Subject Page

    Introduction to Metrode * 2

    Data Sheets: Introduction and explanatory notes 5

    A. Low alloy steels 7 CrMo creep resisting consumables MnMo low alloy steels High toughness Ni bearing low alloy steels High strength low alloy steels

    B. Stainless steels 86 Martensitic stainless steels Austenitic stainless steels 309L and 309Mo and stainless steels Superaustenitic, lean duplex, duplex and superduplex stainless steels

    C. High temperature alloys 209 High carbon 300 series stainless steels High temperature 309 and 310 stainless steels High carbon austenitic alloys (including 330, 800, HP40)

    D. Nickel base alloys 261 182 type alloys 625 type alloys Alloy C types Specialist nickel base alloys Nickel based non-ferrous alloys

    E. Repair and maintenance 310 Cast iron Dissimilar welding Copper alloy consumables Hardfacing Special mild steel

    F. Submerged arc welding fluxes 357 Fluxes for use with low alloy CrMo, stainless steel and nickel base wires

    G. Other useful information 368 Abbreviations, element symbols, welding positions Schaeffler and WRC diagrams Conversions Packaging and storage

    Index 1 Product designations 377

    Index 2 Consumable specifications 380

    Index 3 Materials to be welded 387

  • Rev 05 05/11 Introduction (pg 1 of 5)

    Introduction to Metrode

    ScopeThis handbook is designed to provide information on the company, its products and services and guidance on thecorrect choice of welding consumables.

    This 2011 edition of the Technical Handbook (revision 11) contains about 100 data sheets covering nearly 275 arcwelding consumables. About half of these are flux covered manual metal arc electrodes. These arecomplemented by a wide range of solid wires, tubular flux cored, metal cored wires for the other popular arcwelding processes, and for the first time strips and fluxes for strip cladding. The range has applications for allindustrially significant steels and alloy systems except for titanium, magnesium, aluminium and rarer metals.Particular emphasis is currently being devoted to developing a strategy with consumables for the powergeneration industries, offshore oil and gas industries, high temperature materials in the chemical andpetrochemical industries and a diverse range of nickel based alloys. Data sheets for some fringe products are notincluded in this handbook, but are available on request.

    The companyMetrode was founded in 1963 as a privately owned company. In the subsequent years it has grown to become theUK's leading manufacturer and supplier of alloyed welding consumables. It is particularly strong in thoseindustries which require the highest integrity from their welding consumables, such as power generation,chemical and petrochemical, offshore oil and gas, LNG and nuclear. In the last decade the export market hasbeen vigorously developed and Metrode has markets globally. It also has an extensive overseas network ofdistributors and agents as well as a distribution network covering the whole of the UK. The most recent step inMetrodes development occurred in November 2006 when Metrode joined the Lincoln Electric Company as abusiness unit within Lincoln Electric Europe.

    The productsMetrode offers one of the largest ranges of alloyed welding consumables available from a single source. Theproducts range from those suitable for low alloy steels, through numerous diverse stainless steels, to thosematching the performance of nickel-base alloys.

    All the major arc welding processes are catered for and the range covers Manual Metal Arc Electrodes(MMA/SMAW), Solid and Cored Wires for Gas Shielded Welding (MIG/MAG/GMAW and FCAW), Solid Wires for TIGWelding (TIG/GTAW), wire/flux combinations for Submerged Arc Welding (SAW) and strip/flux combinations forelectroslag strip cladding (ESW).

    The products are listed in the index at the back and more detailed information and guidance notes on selectionare given in the individual data sheets.

    Availability and special servicesMetrode is uniquely geared for rapid delivery from our very large stocks and through a flexible development andmanufacturing system.

    Standard product rangeAll the standard products listed in this document are available either ex stock or on short lead times in the mostcommonly used sizes.

    Special product rangeThe special product range covers a wider range of the less common products and non-standard sizes. These itemsmay be subject to minimum order value/quantity requirements and to longer lead times. Further information onthe Product Range is available from our Customer Care Department.

    Special servicesMetrode's unique know-how is always available to meet individual requirements and a number of tailor-madeformulations are developed to suit special or proprietary technical requirements.

  • Rev 05 05/11 Introduction (pg 2 of 5)

    DevelopmentMetrode maintains a close awareness of future consumable needs to support new alloys and changing technicalrequirements through its links with: the International Institute of Welding (IIW), the European Welding Association(EWA), The Welding Institute (TWI), the American Welding Society (AWS) and a number of universities andresearch organisations both in the UK and worldwide. The Company has its own development team with thenecessary resources to design new products and improve existing ones to meet the needs of the fabricationindustry.

    Technical supportTechnical support is available to help with any aspect of consumable choice, applications or procedural guidance.

    Field based staff can advise on procedural aspects and factors needed to achieve optimum performance.

    Facilities are available at Metrode for demonstration, training and evaluation for all the major welding processeswhich utilise Metrode consumables.

    Specifications and certificationMetrode consumables are manufactured to conform with the current issues of BS EN, BS EN ISO or AWS-ASMEstandards where applicable. When incompatible variations exist between different specifications for equivalenttypes, these are indicated on the data sheet. Where a product does not strictly conform to a standard thespecification is shown in brackets for guidance only.

    Every batch is certified at least with chemical analysis to BS EN 10204: 3.1, with a few exceptions amongst somehardfacing/maintenance types certified to BS EN 10204: 2.2.

    Special requirements for batch testing or analysis variants are frequently satisfied with prior agreement.

    Health and safetyWelding produces fumes and gases which can be dangerous to your health. Arc rays can injure eyes and burnskin. Electric shock can kill.

    It is important to take suitable precautions when welding, and to follow safe working practices. These should bebased upon information available from the Welding Manufacturers' Association leaflet and Metrode's Health andSafety booklet which may be obtained from Metrode or our distributors. Some details may vary with specificlegislation outside the UK.

    Welding fume data for hazard assessment (COSHH in the UK) is included on each data sheet.

    Quality assuranceMetrode's historic reputation for quality is sustained by the active and continuous implementation of a stringentquality assurance programme recognised by international authorities.

    Approval and surveillance of Metrode's Quality Management Systems for design, development and manufacturingis certified by:

    Lloyds Register QA to BS EN ISO 9001:2008 certificate 840131.

    TV NORD to AD2000-Merkblatt W0/TRD 100, VdTV-Merkblatt 1153 & KTA 1408, certificate 07-202-1410-wp-0874/7/001.

  • Rev 05 05/11 Introduction (pg 3 of 5)

    Quality policyIt is Metrodes mission to achieve and maintain dominance in its chosen market of supplying Welding consumablesto users worldwide through key customer and supplier partnerships, superior service, technology and productleadership.

    This shall be achieved through the highest standards of product quality and customer service by:

    Ensuring that each customers needs are clearly defined and understood. Ensuring that all employees are appropriately trained in all aspects of their job with the understanding

    that quality is everyones responsibility. Supplying products that satisfy each customers quality and reliability requirements, whilst underpinning

    the profitability of the company. Monitoring customer satisfaction and ensuring that the customers wishes remain the prime focus at all

    time. Striving to continuously improve every aspect of our business by identifying processes and setting and

    reviewing quality objectives.

    To support this policy, Metrode operates a quality management system that will comply with ISO 9001 andapplicable regulatory requirements. The system shall serve to communicate expectations, establish controls andpromote a culture committed to excellence in everything we do.

    Our Quality Manager is charged with the responsibility for the implementation and maintenance of the qualitysystem and acts with our full authority and commitment on all matters related to quality.

  • Rev 05 05/11 Introduction (pg 4 of 5)

    Data Sheets: Introduction and Explanatory Notes

    The individual data sheets collect all of the processes (MMA, TIG, MIG, SAW and FCAW) onto a single data sheet,allowing all products for any alloy type eg 316L to be seen at a glance. The front page of each data sheetprovides the generic information on that particular alloy alloy type, materials to be welded, applications,microstructure, welding guidelines, PWHT, additional information and products available. The data specific tothe individual products product description, specifications, analysis, mechanical properties etc are then givenon subsequent pages.

    There are seven main sections comprising:

    A. Low alloy steels

    B. Stainless steels

    C. High temperature alloys

    D. Nickel base alloys

    E. Repair and maintenance including cast iron, hardfacing, dissimilar, copper and its alloys, and somespecialist mild steel consumables

    F. Fluxes for submerged arc welding

    G. Other useful information.

    There are three comprehensive indices at the back of the Handbook by product designation, by consumablespecification and by base material to aid navigation around the Handbook.

    GENERAL EXPLANATORY NOTESEach data sheet is headed with a unique number for easy reference. The same number also appears at thebottom right hand corner of each page of the data sheet.

    Data sheet revision status is given at the foot of the page.

    The Metrode designation in bold type should be used when ordering. It is printed on each electrode, stamped onmany TIG wires and identifies all package labels.

    Each data sheet is sub-divided under self-explanatory headings, some of which are briefly outlined below.

    Materials to be weldedExamples are given of typical base materials for which the consumable may be used. It should not be assumedthat this is a guarantee of suitability, and should be used with caution.

    Reference is made to proprietary alloy names for many base materials and we acknowledge the use of registeredtrade names from Haynes International Inc, Special Metals, VDM and RA Materials Ltd.

    ApplicationsInformation is given for general guidance and in good faith, but the user should ascertain that the product issuitable for the specific and intended purpose.

    Welding guidelinesBrief guidelines on preheat, PWHT and any particular procedural requirements are given for each alloy. The useris responsible for establishing a satisfactory welding procedure.

    Additional informationUseful background information, procedural notes, precautions and published references are given whereappropriate. Technical profiles are also available for a number of products.

  • Rev 05 05/11 Introduction (pg 5 of 5)

    Specifications, approvalsSee specification notes above. For some products which do not strictly conform to a particular specification, thenearest specification is shown in brackets for guidance. If a required approval is not shown, contact Metrode.

    CompositionComposition limits are declared for almost every product in addition to typical values.

    Where it is possible to meet BS EN, BS EN ISO and AWS-ASME compositions with one product, this is oftenreflected in tighter data sheet limits than the individual specifications. Whilst in rare cases a batch may notsatisfy all these constraints, BS EN ISO or AWS-ASME are normally the default specifications unless agreedotherwise. See also specification notes on previous introductory page.

    Note that flux covered MMA electrodes and tubular cored wires are defined by all-weld deposit analysis and solidwires by wire analysis.

    All-weld mechanical propertiesMinimum and typical tensile and impact properties are given where applicable to satisfy national specifications ormaterial requirements. Caution is generally advised in translating these all-weld (longitudinal) values to joint(transverse) test values.

    Operating parametersCurrent ranges are based on satisfactory fusion and arc stability. Optimum conditions are influenced by variablessuch as welding position, base material thickness, and heat input considerations, etc.

    Most electrodes operate smoothly on DC+ (positive electrode) and for those suitable for AC a minimum OCV (opencircuit voltage) is given.

    Welding positions for electrodes are shown pictographically. Where vertical and overhead are indicated thisusually applies to 3.2mm and smaller sizes, with 4mm practicable with skilled operators and joints with sufficientroom for manipulation. Where vertical down is indicated, this applies to 2.5mm or 3.2 with skilled operators.

    Packaging dataFor electrodes, the length, weight per carton (3 tins) and approximate number of pieces per carton are given, butmay be subject to change without notice. For TIG, MIG, SAW and FCW, tube and spool weights are also provided.Contact Metrode for latest information if required.

    Note that Metrode electrodes are supplied in hermetically sealed tins with ring-pull opening. The integrity of thispackaging is regularly assessed according to the ASME SFA5.5 procedure. Tins provide a convenient and economicalternative to smaller units of vacuum-packed electrodes in 'site packs' which can be supplied to order.

    Redrying (rebaking or conditioning), handling and storage recommendations are given. Redrying should ensurethat the unpacked electrodes reach the recommended temperature-time conditions.

    The majority of electrodes and TIG wires are marked individually with both the designation or classificationnumber and batch number.

    Fume dataTo assist health and safety hazard assessment, welding fume composition is given for each product. Fume itselfcomprises oxides, silicates or other complex compounds of the elements listed.

    An occupational exposure limit or standard (OES) is calculated in milligrams per cubic metre breathing zoneconcentration. This control value is 5mg/m3 maximum, or much lower for many alloyed consumables. Forexample, a significant proportion of the chromium in fume generated by stainless covered electrodes and fluxcored wire is present in hexavalent form with a limit of 0.05mg/m3, which reduces total fume OES to around1mg/m3. In fume generated by solid stainless MIG wires, practically all chromium is trivalent and the total fumeOES is higher.

    TIG and submerged arc processes generate too little fume for assessment on this basis.

    In the UK, COSHH guidance relevant to welding is found in HMSO publications, EH40, EH54 and EH55.

    WebsiteInevitably a printed Technical Handbook is out of date soon after it has been printed. The Metrode website(www.metrode.com) overcomes this problem because the data sheets for the most common products are all onthe website and are updated as soon as the data sheet is revised.

  • Rev 05 05/09 DS: A-01 (pg 1 of 2)

    METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 Sales

    +44(0)1932 569449 TechnicalSECTION A

    +44(0)1932 566199 ExportEmail: [email protected]: http//www.metrode.com

    LOW ALLOY STEELS

    Low alloy steels including the CrMo creep resisting consumables

    This section includes electrodes suitable for welding general engineering and structural steels, from medium tensilegrain-refined CMn and semi-cryogenic steels (approximately 75C) to specialised heat and creep-resistant CrMotypes reaching the threshold of stainlessness at 12%Cr.

    Flux coverings of all electrodes are of all-positional basic low-hydrogen type and employ binders giving highresistance to moisture absorption. All flux cored wires are rutile all-positional types also with low hydrogenpotential. With increasing weld and base metal strength and hardenability (or carbon equivalent), a hydrogenpotential below 5ml/100g weld metal is often an essential procedural parameter, coupled with preheat wherenecessary to moderate HAZ hardening or raise safety margins in thicker sections:

    Carbon equivalent (CE) = C + Mn + Cr+Mo+V + Cu+Ni6 5 15

    For guidance, preheat up to 50C for CE < 0.40, 100C for < 0.55, 150C for < 0.70, 200C for < 0.80, 250C for 0.90or above. However, note that some cases require restricted preheat-interpass and also heat input control tomaintain optimum strength and toughness. High joint restraint may require higher preheats.

    A full discussion of this subject is given in the following publication: N. Bailey, F.R. Coe et al: Welding steelswithout hydrogen cracking, Abington Publishing, Cambridge, 1993.

    The necessity for Post Weld Heat Treatment (PWHT) varies with base and weld metal type. PWHT is normallyessential to temper the HAZ below 248HV/22HRC required by NACE for H2S service, for which electrodes givingmandatory < 1%Ni with strength and toughness are available. Most nickel-bearing electrodes also give excellent as-welded properties at low temperatures. PWHT is essential for creep-resisting Cr-Mo types, although the leaner lowcarbon variants are sometimes stress-relieved in service when used for repairs under local preheat.

    SpecificationsDataSheet Alloy Process Product AWS BS EN / BS EN ISO

    Cr-Mo creep resisting consumables mainly for the power generation industryMMA Mo.B E7018-A1 E Mo B

    A-10 MoTIG/MIG CMo ER70S-A1 MoSi

    -- Cr1Mo MMA 11CM E8016-B5 --Chromet 1 E8018-B2 E CrMo1 BChromet 1L E7015-B2L E CrMo1L BMMAChromet 1X E8018-B2 E CrMo1 B

    1CrMo -- CrMo1SiTIG/MIG

    ER80S-B2 ER80S-B2 --SAW SA 1CrMo EB2 CrMo1

    A-12 1CrMo

    FCW Cormet 1 E81T1-B2 T55T1-1C/M-1CMChromet 2 E9018-B3 E CrMo2 BChromet 2L E8015-B3L E CrMo2L BMMAChromet 2X E9018-B3 E CrMo2 B

    2CrMo -- CrMo2SiTIG/MIG

    ER90S-B3 ER90S-B3 --SAW SA 2CrMo EB3 CrMo2

    Cormet 2 E91T1-B3 T62T1-1C/M-2CM

    A-13 2Cr1Mo

    FCWCormet 2L E91T1-B3L T62T1-1C/M-2CML

    Chromet 1V -- ECrMoV1 BMMA

    13CMV -- (ECrMoV1 B)A-14 CrMoVFCW Cormet 1V -- --

  • Rev 05 05/09 DS: A-01 (pg 2 of 2)

    SpecificationsDataSheet Alloy Process Product AWS BS EN / BS EN ISO

    Cr-Mo creep resisting consumables mainly for the power generation industry (continued)MMA Chromet 5 E8015-B6 E CrMo5 B

    TIG/MIG 5CrMo ER80S-B6 CrMo5SiA-15 5CrMoFCW Cormet 5 E81T1-B6 T55T1-1C/M-5CMMMA Chromet 9 E8015-B8 E CrMo9 B

    TIG/MIG 9CrMo ER80S-B8 CrMo9SiA-16 9CrMoFCW Cormet 9 E81T1-B8 T55T1-1C/M-9C1M

    Chromet 9MV-N E9015-B9 E CrMo91 BChromet 9MVN+ E9015-B9 E CrMo91 BChromet 9-B9 E9015-B9 E CrMo91 B

    MMA

    Chromet 91VNB E9015-B9 E CrMo91 BTIG 9CrMoV-N ER90S-B9 W CrMo91

    MCW Cormet M91 E90C-B9 T69T15-0M-9C1MVSAW 9CrMoV-N EB9 (S CrMo91)

    A-17 P91

    FCW Supercore F91 E91T1-B9 T69T1-1C/M-9C1MVMMA Chromet 10MW -- --

    A-18 E911FCW Cormet 10MW -- --MMA Chromet 12MV -- E CrMoWV 12 1 B

    A-19 12CrMoVTIG 12CrMoV -- W CrMoWV12 1MMA Chromet 92 -- --

    TIG/SAW 9CrWV -- --A-20 P92FCW Supercore F92 -- --MMA Chromet 23L -- --

    A-21 T23TIG 2CrWV -- --

    A-22 T24 TIG/SAW 24CrMoV -- --MMA 1NiMo.B E9018-G --TIG MnMo ER80S-D2 --A-23 WB36SAW SA1NiMo EF3 S3Ni1Mo

    A-25 W B2 / 921 MMA Chromet WB2 -- --

    High toughness 1-3%Ni consumables for applications from 40C down to about 75CMMA Tufmet 1Ni.B E8018-C3 E 46 6 1Ni B 42

    TIG/MIG 1Ni ER80S-Ni1 (3Ni1)A-40 1NiFCW Metcore DWA 55E E71T-5 T 42 4 PM1 H5MMA Tufmet 2Ni.B E8018-C1 E 46 6 2Ni B 42

    A-41 2NiTIG/MIG 2Ni ER80S-Ni2 (2Ni2)

    A-42 3Ni MMA Tufmet 3Ni.B E8018-C2 E 46 6 3Ni B 42

    Consumables for high strength low alloy steels requiring tensile strengths from 620MPa up to 825MPaE9018-D1 E9018-D1 BS: MnMo.BH

    MMAE10018-D2 E10018-D2 E 624 Mn1NiMo BA-50 MnMo

    TIG/MIG MnMo ER80S-D2 4MoTufmet 1NiMo E9016-G --

    E11018-M E11018-M --MMATufmet 3NiMo E12016-G --

    A-60 NiMo

    TIG/MIG ER110S-G ER110S-G Mn3Ni1CrMoA-61 NiMo MMA 1NiMo.B E9018-G --

    Consumables for copper containing weathering steels eg. CortenMMA 1NiCu.B E8018-W2 E 55 18-NCC1 A

    A-70 CortenTIG/MIG/SAW ER80S-W ER80S-G (Mn3Ni1Cu)

    Electrode for the joining of rail steels using a slag-over-slag techniqueA-80 Rail MMA Railrod -- --

  • Rev 02 08/08 DS: A-10 (pg 1 of 3)

    DATA SHEET A-10METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected]%Mo CREEP RESISTING STEELInternet: http//www.metrode.com

    Alloy typeFerritic creep resisting 0.5%Mo steels for elevatedtemperature service.

    Materials to be weldedpipe/tube:

    ASTM A335 grade P1A209 & A 250 grade T1

    BS 3059 grade 2433606 grades 243, 245, 261

    forged:

    ASTM A336 grade F1A204 grades A, B, C

    BS EN 10028-2 grade 16Mo3 (1.5415)DIN 15Mo3 (1.5415)

    16Mo5 (1.5423)10MnMo 4 5 (1.5424)11MnMo 4 5 (1.5425)

    cast:

    ASTM A217 grade WC1A352 grade LC1

    BS 1504 grade 2453100 grade B1

    DIN GS-22Mo 4 (1.5419)

    ApplicationsNominal 0.5% Mo alloying results in improved elevatedtemperature performance over that of CMn steels. Usedfor the fabrication of vessels and associated pipeworkdemanding creep rupture strength and ductility attemperatures up to about 450C.

    The Mo content also enhances resistance to hydrogenattack in chemical process plant operation.

    Favourable mechanical properties of both as-weldedand stress-relieved weld metal are also useful in weldingstructural and general engineering steels for ambient orsub-zero temperature service. In this respect theseconsumables are related to the higher strengthmanganese-molybdenum alloyed steel consumables.

    MicrostructureIn the stress-relieved condition the microstructureconsists of acicular ferrite with some tempered bainite.

    Welding guidelinesPreheat and interpass temperatures are normally in therange 100-250C depending upon thickness beingwelded and restraint.

    Related alloy groupsFor high strength structural welding applications theMnMo alloys (A-50) are related.

    PWHTPWHT to temper the weldment varies according to thecode; the extremes range from 550C up to 720C butthe most common range is 630-670C. For material upto 20mm thick some codes allow the PWHT to beomitted.

    Products available

    Process Product SpecificationMMA Mo.B AWS E7018-A1TIG/MIG CMo AWS ER70S-A1

  • Rev 02 08/08 DS: A-10 (pg 2 of 3)

    Mo.B Molybdenum alloyed MMA electrode for elevated temperature serviceProduct description Basic flux, metal powder type coating on high purity mild steel core wire. Moisture resistant coating giving very

    low weld metal hydrogen levels.

    Recovery is about 120% with respect to core wire, 65% with respect to whole electrode.

    Specifications AWS A5.5 E7018-A1BS EN ISO 3580-A E Mo B 3 2BS 2493 MoBHDIN 8575 E Mo B 26BS and AWS Mn ranges overlap, but required specification should be stated on order.

    ASME IX Qualification QW432 F-No 4, QW442 A-No 2

    Composition C Mn* Si S P Cr Ni Mo Cu(weld metal wt %) min -- 0.75 -- -- -- -- -- 0.40 --

    max 0.10 1.20 0.60 0.025 0.030 0.20 -- 0.65 --typ 0.05 0.8 0.3 0.01 0.015 0.05 0.05 0.55 0.05* BS2493 Mn:Si 2:1, AWS A5.5 Mn 0.90% max.

    All-weld mechanical PWHT 600-650C/h * min typical As-welded typicalproperties Tensile strength MPa 510 550-610 590

    0.2% Proof stress MPa 400 460-525 480Elongation on 4d % 22 27-32 27Elongation on 5d % 22 23-29 23Reduction of area % -- 65-72 68Impact energy - 20C J -- 130 100

    - 30C J -- 115 --Hardness HV -- 200 200* BS and DIN: 600C/1h; AWS: 620C/1h.

    Satisfactory properties are also obtained in the as-welded condition.

    Operating parameters DC +ve or AC (OCV: 70V min)

    mm 2.5 3.2 4.0 5.0min A 70 80 100 140max A 110 140 180 240

    Packaging data mm 2.5 3.2 4.0 5.0length mm 350 380 450 450kg/carton 12.0 15.0 16.5 16.5pieces/carton 552 390 237 153

    Storage 3 hermetically sealed ring-pull metal tins per carton, with unlimited shelf life. Direct use from tin will givehydrogen

  • Rev 02 08/08 DS: A-10 (pg 3 of 3)

    CMo 0.5%Mo solid TIG and MIG wire for creep resisting steelsProduct description Copper coated solid wire for TIG and MIG.

    Specifications AWS A5.28 ER70S-A1 (Previous classification was ER70S-G)BS EN ISO 21952-A Mo SiBS 2901: Pt1 A30DIN 8575 SG Mo

    ASME IX Qualification QW432 F-No 6, QW442 A-No 2

    Composition C Mn Si S P Cr Ni Mo Cu V(wire wt %) min 0.08 0.90 0.50 -- -- -- -- 0.45 -- --

    max 0.12 1.30 0.70 0.020 0.020 0.2 0.20 0.60 0.3 0.03typ 0.1 1.2 0.6 0.01 0.01 0.03 0.02 0.5 0.05 0.01

    All-weld mechanical Properties as-welded (AW) or PWHT: min. * typical: TIG MAG: Ar + 5% CO2properties AW 620C/1h AW 620C/1h

    Tensile strength MPa 515 662 640 650 6200.2% Proof stress MPa 400 540 520 530 505Elongation on 4d % 19 29 25 29 25Elongation on 5d % 22 26 24 25 24Impact energy - 30C J -- 52 170 42 96Hardness cap/mid HV -- 210/245 205/230 215/235 200/220

    * Minimum values are after PWHT 620C/1h (AWS) or 595C/0.5h (DIN) and as-welded for BS EN.MAG welds using more oxidising shielding gas (higher CO2 + O2) will have lower strength than shown.

    Typical operating TIG MIGparameters Shielding Argon Argon + 2-20%CO2Argon + 1.5% O2 or proprietary

    Current DC- DC+Diameter 2.4mm 1.2mmParameters 100A, 12V 260A, 26V

    Packaging data mm TIG MIG1.2 -- 15kg spool1.6 5kg tube --2.4 5kg tube --

    Fume data MIG fume composition (wt %) (TIG fume negligible)

    Fe Mn Cr3 Ni Mo Cu OES (mg/m3)

    55 5

  • Rev 13 04/11 DS: A-12 (pg 1 of 7)

    DATA SHEET A-12METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected] CREEP RESISTING STEELInternet: http//www.metrode.com

    Alloy type1Cr-Mo alloyed steel consumables for elevatedtemperature service.

    Materials to be welded

    ASTM BS EN & DIN

    A387 Gr 11 & 12 13CrMo 4-5 (1.7355)A182 F11 & F12 13CrMo 4-4 (1.7335)A217 WC6 & WC11 16CrMo 4-4 (1.7337)A234 WP11 & WP12 11CrMo 5-5 (1.7339)A199 T11 GS-25CrMo 4 (1.7128)A200 T11 GS-17CrMo 5-5 (1.7357)A213 T11 & T12A335 P11 & P12 BS

    1501 Gr 620 & 6211502 Gr 6201503 Gr 620 & 6211504 Gr 6213100 Gr B23604 Gr 620/440 & 6213059 Gr 620/460

    ApplicationsThese consumables are designed for prolonged elevatedtemperature service up to 550C. Main areas ofapplication are associated with steam generatingpower plant, eg piping, turbine castings, steamchests, valve bodies and boiler superheaters. Some ofthe consumables will also find service in refinerieswhere they are used for corrosion resistance to sulphurbearing crude oil at 250-450C. Some of theconsumables will also find applications in the chemicaland petro-chemical industries where they are used forresistance to hydrogen attack in the fabrication ofhydrocrackers, coal liquefaction plant and NH3pressure vessels operating at up to 450C. In the as-welded condition the consumables also provide a usefulsource of 300HV hardness weld deposit for build-up or

    hardsurfacing to resist metal-to-metal wear and heavyimpact.

    MicrostructureAfter PWHT, the microstructure consists of temperedbainite.

    Welding guidelinesPreheat and interpass temperature 200C minimum, upto 300C for thick sections. Maintain throughoutwelding cycle and some time after completion ofwelding.

    PWHTApart from some special applications, PWHT willalways be required. PWHT temperature is typically690C with time being dependent on section thickness.

    Additional informationThere are Technical Profiles available which coversome of the consumables on this data sheet. Additionalinformation is available on Chromet 1X and Cormet 1.

    Products available

    Process Product SpecificationMMA Chromet 1 AWS E8018-B2

    Chromet 1L AWS E7015-B2LChromet 1X * AWS E8018-B2

    TIG/MIG 1CrMo BS EN CrMo1SiER80S-B2 AWS ER80S-B2

    SAW SA 1CrMo AWS EB2LA436 BS EN SA AB 1

    FCW Cormet 1 AWS E81T1-B2

    * Chromet 1X is the temper embrittlement resistant (TER)version of Chromet 1.

  • Rev 13 04/11 DS: A-12 (pg 2 of 7)

    General Data for all 1Cr-Mo ElectrodesDescription Basic flux, metal powder type coatings on low carbon high purity core wire. Recovery is approximately 115%

    with respect to the core wire and 65% with respect to whole electrode. Moisture resistant coating gives very lowmetal hydrogen levels.

    Storage 3 hermetically sealed ring-pull metal tins per carton, with unlimited shelf life. Direct use from tin will givehydrogen < 5ml/100g for longer than a working shift of 8h.For electrodes that have been exposed:Redry 250 300C/1-2h to ensure H2 < 10ml/100g, 300 350C/1-2h to ensure H2 < 5ml/100g. Maximum420C, 3 cycles, 10h total.Storage of redried electrodes at 50 200C in holding oven or heated quiver: no limit, but maximum 6 weeksrecommended. Recommended ambient storage conditions for opened tins (using plastic lid): < 60% RH, > 18C.

    Operating parameters DC +ve or AC (OCV: 70V min)

    mm 2.5 3.2 4.0 5.0min A 70 80 100 140max A 110 140 180 240

    Fume data Fume composition, wt % typical:

    Fe Mn Cr Ni Cu F OES (mg/m3)

    15 5 < 0.5 < 0.1 < 0.2 18 5

    CHROMET 1 1Cr-Mo MMA electrodeProduct description MMA electrode meeting AWS and BS EN national standards suitable for most power generation applications.

    Specifications AWS A5.5 E8018-B2 H4BS EN ISO 3580-A E CrMo1 B 3 2 H5BS EN ISO 3580-B E 5518-1CM

    ASME IX Qualification QW432 F-No 4, QW442 A-No 3

    Composition C Mn* Si S P Cr Mo Ni Cu Nb(weld metal wt %) min 0.05 0.50 -- -- -- 1.00 0.45 -- -- --

    max 0.12 0.90 0.80 0.025 0.030 1.40 0.65 0.3 0.2 0.01typ 0.07 0.8 0.5 0.01 0.02 1.25 0.55 0.1

  • Rev 13 04/11 DS: A-12 (pg 3 of 7)

    CHROMET 1L Low carbon 1Cr-Mo MMA electrodeProduct description MMA electrode 1Cr-Mo deposit with low carbon which produces lower hardness and residual stresses for

    resistance to sulphide stress corrosion cracking when operating in wet 'sour' environments. Also suitable for thinsection joints which are to be left in the as-welded condition.

    Specifications AWS A5.5 E7015-B2LBS EN ISO 3580-A E CrMo1L B 3 2BS EN ISO 3580-B E 5216-1CMLBS 2493 (1CrMo L B H)DIN 8575 ECrMo 1 B 2 6

    ASME IX Qualification QW432 F-No 4, QW442 A-No 3

    Composition C Mn* Si S P Cr Mo Cu(weld metal wt %) min 0.03 0.50 -- -- -- 1.00 0.45 --

    max 0.05 0.90 0.80 0.025 0.025 1.40 0.65 0.15typ 0.04 0.8 0.40 0.012 0.015 1.25 0.55

  • Rev 13 04/11 DS: A-12 (pg 4 of 7)

    CHROMET 1X (continued)All-weld mechanical 690C/5h 690C/5h + SCproperties PWHT 690C/1h (1) (SC = step cooled) min typical typical typical

    Tensile strength MPa 550 610 610 5950.2% Proof stress MPa 460 525 515 490Elongation on 4d % 19 25 29 29Elongation on 5d % 20 21 25 25Reduction of area % -- 70 70 70Impact energy + 20C J 47 (2) 160 200 200

    - 30C J -- 100 160 140Hardness (AW) HV -- 300-320 -- --

    (PWHT) HV -- 200-210 220 190(1) BS & AWS PWHT 690C/1h, DIN 690C/>30min, BS EN 720C/1h.(2) DIN & BS EN minimum average.

    Packaging data mm 2.5 3.2 4.0 5.0length mm 350 380 450 450kg/carton 12.6 15.0 16.8 17.4pieces/carton 627 372 243 159

    1CrMo Solid welding wire for TIG & MIG.Product description Copper coated wire for TIG and MIG welding of 1Cr-Mo steels, conforming to European specifications.

    Specifications AWS A5.28 ER80S-GBS EN ISO 21952-A CrMo1Si (W = TIG, G = MIG)BS 2901: Pt1 (A32)DIN 8575 (SG CrMo 1)

    ASME IX Qualification QW432 F-No 6, QW442 A-No 3

    Composition C Mn Si S P Cr Ni Mo Cu(wire wt %) min 0.08 0.80 0.50 -- -- 0.90 -- 0.45 --

    max 0.14 1.20 0.80 0.020 0.020 1.30 -- 0.65 0.4typ 0.1 1 0.6 0.010 0.015 1.2 200 > 115Hardness HV(HB) -- 220(215) 195(190)

    Typical operating TIG MIGparameters Shielding Argon Ar-5%CO2

    Current DC- DC+Diameter 2.4mm 1.2mmParameters 100A, 12V 280A, 26V

    Packaging data mm TIG MIG0.8 -- 15kg reel1.2 -- 15kg reel1.6 5kg tube --2.4 5kg tube --3.2 5kg tube --

    Fume data MIG fume composition (wt %) (TIG fume negligible)Fe Mn Cr3 Ni Mo Cu OES (mg/m3)

    55 5 0.4 < 0.1 < 0.5 1.2 5

  • Rev 13 04/11 DS: A-12 (pg 5 of 7)

    ER80S-B2 Solid welding wire for TIG & MIG.Product description Copper coated wire for TIG and MIG welding 1Cr-Mo creep resisting steels, conforming to the AWS/ASME

    specification.

    Specifications AWS A5.28 ER80S-B2BS EN ISO 21952-B 1CMBS 2901: Pt1 (A32)DIN 8575 --

    ASME IX Qualification QW432 F-No 6, QW442 A-No 3

    Composition C Mn Si S P Cr Ni Mo Cu(wire wt %) min 0.07 0.40 0.40 -- -- 1.20 -- 0.40 --

    max 0.12 0.70 0.70 0.020 0.020 1.50 0.20 0.65 0.35typ 0.1 0.5 0.5 0.010 0.015 1.3 200 > 115

    Typical operating TIG MIGparameters Shielding Argon Ar - 5% CO2

    Current DC - DC+Diameter 2.4mm 1.2mmParameters 100A, 12V 280A, 26V

    Packaging data mm TIG MIG0.8 -- 15kg reel0.9 -- 15kg reel1.0 -- 15kg reel1.2 -- 15kg reel1.6 5kg tube --2.4 5kg tube --3.2 5kg tube --

    Fume data MIG fume composition (wt %) (TIG fume negligible)Fe Mn Cr3 Ni Mo Cu OES (mg/m3)

    55 5 0.4

  • Rev 13 04/11 DS: A-12 (pg 6 of 7)

    SA1CrMo Solid welding wire for SAW.Product description Solid wire for Sub Arc Welding of 1Cr-Mo steels.

    Specifications AWS A5.23 EB2BS EN ISO 24598-A SCrMo1

    ASME IX Qualification QW432 F-No 6, QW442 A-No 3

    Composition C Mn Si S P Cr Mo(typical) SA1CrMo wire 0.10 0.8 0.15 0.010 0.012 1.3 0.55

    Deposit with LA436 0.08 1.1 0.4

  • Rev 13 04/11 DS: A-12 (pg 7 of 7)

    CORMET 1 All-positional flux cored wireProduct description Cormet 1 is an all-positional flux cored wire suitable for welding fixed pipework. Made using a high purity steel

    sheath with a metal recovery of about 90% with respect to the wire.

    Specifications AWS A5.29 E81T1-B2C/MBS EN ISO 17634-B T55T1-1C/M-1CM

    ASME IX Qualification QW432 F-No 6, QW442 A-No 3

    Composition C Mn Si S P Cr Mo Cu(weld metal wt %) min 0.05 -- -- -- -- 1.00 0.40 --

    max 0.12 1.25 0.80 0.030 0.030 1.50 0.65 0.30typ 0.06 1.0 0.3 0.01 0.01 1.3 0.55 0.05

    All-weld mechanical PWHT 690C/1-2h min typicalproperties Tensile strength MPa 550 650

    0.2% Proof stress MPa 470 550Elongation on 4d % 19 24Elongation on 4d % 17 22Impact energy + 20C J -- 30Hardness HV -- 220

    Operating parameters Shielding gas: 80%Ar-20%CO2 at 20-25l/min. Proprietary gases may be used but argon should not exceed 80%.The wire is also suitable for use with 100%CO2. (Note: for 100%CO2 shielding gas, voltage should be 1-2Vhigher.)Current: DC+ve ranges as below: mm amp-volt range typical stickout1.2 160 260A, 24-30V 190A, 25V 15 25mm1.6 220 350A, 26-32V 260A, 28V 15 25mm

    Packaging data Spools vacuum-sealed in barrier foil with cardboard carton: 15kg.The as-packed shelf life is virtually indefinite.Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and prevent anypossibility of porosity, it is advised that part-used spools are returned to polythene wrappers.Where possible, preferred storage conditions are 60% RH max, 18C min.

    Fume data Fume composition (wt %)

    Fe Mn Ni Cr3 Cr6 Cu F OES (mg/m3)

    20 8 < 0.5 1 < 1 < 1 8 5

  • Rev 11 04/11 DS: A-13 (pg 1 of 7)

    DATA SHEET A-13METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected] CREEP RESISTING STEELInternet: http//www.metrode.com

    Alloy type2Cr-1Mo alloyed steel consumables for elevatedtemperature service.

    Materials to be welded

    ASTM BS EN & DIN

    A387 Gr 21 & 22 11CrMo9-10 (1.7383)A182 F22 10CrMo 9-10 (1.7380)A217 WC9 GS-18CrMo 9 10 (1.7379)A234 WP22 GS-12CrMo 9 10 (1.7380)A199 T21, T22 6CrMo 9 10 (1.7385)A200 T21, T22 12CrMo 9 10 (1.7375)A213 T22A335 P22A234 WP22 BS

    1501 Gr 622Also Cr-Mo-V steels 1503 Gr 622BS 1503 Gr 660 1504 Gr 622BS 1504 Gr 660 3100 Gr B3BS 3100 Gr B7 3604 Gr 622BS 3604 Gr 660 3059 Gr 622/640 & 622/490

    ApplicationsThese consumables are designed for prolonged elevatedtemperature service up to 600C. Main areas ofapplication are associated with steam generatingpower plant, eg piping, turbine castings, steamchests, valve bodies and boiler superheaters. Some ofthe consumables will also find service in refinerieswhere they are used for corrosion resistance to sulphurbearing crude oil at 250-450C. Some of theconsumables will also find applications in the chemicaland petro-chemical industries where they are used forresistance to hydrogen attack in the fabrication ofhydrocrackers, coal liquefaction plant and NH3pressure vessels operating at up to 450C. In the as-welded condition the consumables also provide a usefulsource of 300HV hardness weld deposit for build-up orhardsurfacing to resist metal-to-metal wear, heavyimpact and the repair of P20 mould steel.

    MicrostructureAfter PWHT, the microstructure consists of temperedbainite.

    Welding guidelinesPreheat and interpass temperature 250C minimum, upto 300C for thick sections. Maintain throughoutwelding cycle and some time after completion ofwelding.

    PWHTApart from some special applications, PWHT willalways be required. PWHT temperature is typically690C with time being dependent on section thickness.

    Additional informationThere are Technical Profiles available which coversome of the consumables on this data sheet. Additionalinformation is available on Chromet 2X and Cormet 2.

    Products available

    Process Product SpecificationMMA Chromet 2 AWS E9018-B3

    Chromet 2L AWS E8015-B3LChromet 2X * AWS E9018-B3

    TIG/MIG 2CrMo BS EN CrMo2SiER90S-B3 AWS ER90S-B3

    SAW SA 2CrMo AWS EB3LA436 BS EN SA AB 1

    FCW Cormet 2 AWS E91T1-B3Cormet 2L AWS E91T1-B3L

    * Chromet 2X is the temper embrittlement resistant (TER)version of Chromet 2.

  • Rev 11 04/11 DS: A-13 (pg 2 of 7)

    General Data for all 2Cr-1Mo ElectrodesDescription Basic flux, metal powder type coatings on low carbon high purity core wire. Recovery is approximately 115%

    with respect to the core wire and 65% with respect to whole electrode. Moisture resistant coating gives very lowweld metal hydrogen levels.

    Storage 3 hermetically sealed ring-pull metal tins per carton, with unlimited shelf life. Direct use from tin will givehydrogen < 5ml/100g for longer than a working shift of 8h.For electrodes that have been exposed:Redry 250 300C/1-2h to ensure H2 < 10ml/100g, 300 350C/1-2h to ensure H2 < 5ml/100g. Maximum420C, 3 cycles, 10h total.Storage of redried electrodes at 50 200C in holding oven or heated quiver: no limit, but maximum 6 weeksrecommended. Recommended ambient storage conditions for opened tins (using plastic lid): < 60% RH, > 18C.

    Operating parameters DC +ve or AC (OCV: 70V min)

    mm 2.5 3.2 4.0 5.0min A 70 80 100 140max A 110 140 180 240

    Fume data Fume composition, wt % typical:Fe Mn Cr Ni Cu F OES (mg/m3)

    15 5 1 < 0.1 < 0.2 18 5

    CHROMET 2 2Cr-1Mo MMA electrodeProduct description MMA electrode meeting AWS and BS EN national standards suitable for most power generation applications.

    Specifications AWS A5.5 E9018-B3 H4BS EN ISO 3580-A E CrMo2 B 3 2 H5BS EN ISO 3580-B E 6216-2C1M

    ASME IX Qualification QW432 F-No 4, QW442 A-No 4

    Composition C Mn* Si S P Cr Mo Ni Cu Nb(weld metal wt %) min 0.05 0.50 -- -- -- 2.00 0.90 -- -- --

    max 0.10 0.90 0.80 0.025 0.030 2.50 1.20 0.3 0.2 0.01typ 0.07 0.8 0.6 0.01 0.02 2.3 1.0 0.1 0.1 0.01* Mn may exceed AWS 0.90% max.

    All-weld mechanical PWHT 690C/1h min typicalproperties Tensile strength MPa 630 670

    0.2% Proof stress MPa 530 570Elongation on 4d % 17 22Elongation on 5d % 18 20Reduction of area % -- 65Impact energy + 20C J 47 140Hardness (AW) HV -- 300-320

    (PWHT) HV -- 220-250

    Packaging data mm 2.5 3.2 4.0 5.0length mm 350 350 450 450kg/carton 12.9 12.9 16.8 18.0pieces/carton 642 372 243 159

  • Rev 11 04/11 DS: A-13 (pg 3 of 7)

    CHROMET 2L Low carbon 2Cr-1Mo MMA electrodeProduct description MMA electrode 2Cr-1Mo deposit with low carbon which produces lower hardness and residual stresses

    for resistance to sulphide stress corrosion cracking when operating in wet 'sour' environments. The lowerhardness of Chromet 2L can also be beneficial for welds that cannot be subsequently PWHT.

    Specifications AWS A5.5 E8015-B3LBS EN ISO 3580-A E CrMo2L B 3 2BS EN ISO 3580-B E 5516-2C1MLBS 2493 (2CrMo L B H)DIN 8575 ECrMo 2 B 2 6

    ASME IX Qualification QW432 F-No 4, QW442 A-No 4

    Composition C Mn* Si S P Cr Mo Cu(weld metal wt %) min 0.03 0.50 -- -- -- 2.00 0.90 --

    max 0.05 0.90 0.80 0.015 0.020 2.50 1.20 0.15typ 0.04 0.8 0.40 0.012 0.015 2.25 1.05

  • Rev 11 04/11 DS: A-13 (pg 4 of 7)

    CHROMET 2X (continued)All-weld mechanical 690C/5h 690C/5h + SCproperties PWHT 690C/1h (1) (SC = step cooled) min typical typical typical

    Tensile strength MPa 630 670 660 6500.2% Proof stress MPa 540 570 560 550Elongation on 4d % 17 22 27 25Elongation on 5d % 18 19 24 20Reduction of area % -- 65 70 65Impact energy + 20C J 47 (2) 140 170 170

    - 30C J -- 80 140 110Hardness (AW) HV -- 300-320 -- --

    (PWHT) HV -- 220-250 195 205

    (1) BS & AWS PWHT 690C/1h, DIN 690C/>30min, BS EN 720C/1h.(2) DIN & BS EN minimum average.

    Packaging data mm 2.5 3.2 4.0 5.0length mm 350 380 450 450kg/carton 12.3 13.8 17.1 17.1pieces/carton 585 375 270 156

    2CrMo Solid welding wire for TIG & MIG.Product description Copper coated wire for TIG and MIG welding of 2Cr-1Mo steels, conforming to European specifications.

    Specifications AWS A5.28 ER90S-GBS EN ISO 21952-A CrMo2Si (W = TIG, G = MIG)BS 2901: Pt1 A33DIN 8575 (SG CrMo 2)

    ASME IX Qualification QW432 F-No 6, QW442 A-No 4

    C Mn Si S P Cr Ni Mo Cumin 0.06 0.80 0.50 -- -- 2.30 -- 0.90 --max 0.12 1.20 0.80 0.020 0.020 2.70 -- 1.10 0.4

    Composition(wire wt %)

    typ 0.1 1 0.6 0.010 0.015 2.4 150 > 95Hardness HV(HB) -- 225(220) 220(215)

    Typical operating TIG MIGparameters Shielding Argon Ar-5%CO2

    Current DC- DC+Diameter 2.4mm 1.2mmParameters 100A, 12V 280A, 26V

    Packaging data mm TIG MIG0.8 -- 15kg reel1.2 -- 15kg reel1.6 5kg tube --2.0 To order --2.4 5kg tube --3.2 5kg tube --

    Fume data MIG fume composition (wt %) (TIG fume negligible)Fe Mn Cr3 Ni Mo Cu OES (mg/m3)

    55 5 1.3 < 0.1 < 0.5 1.2 5

  • Rev 11 04/11 DS: A-13 (pg 5 of 7)

    ER90S-B3 Solid welding wire for TIG & MIG.Product description Copper coated wire for TIG and MIG welding 2Cr-1Mo creep resisting steels, conforming to the AWS/ASME

    specification.

    Specifications AWS A5.28 ER90S-B3BS EN ISO 21952-B 2C1MBS 2901: Pt1 (A33)DIN 8575 --

    ASME IX Qualification QW432 F-No 6, QW442 A-No 4

    Composition C Mn Si S P Cr Ni Mo Cu(wire wt %) min 0.07 0.40 0.40 -- -- 2.30 -- 0.90 --

    max 0.12 0.70 0.70 0.020 0.020 2.70 0.20 1.20 0.35typ 0.1 0.5 0.5 0.010 0.015 2.4 150 > 95

    Typical operating TIG MIGparameters Shielding Argon Ar - 5% CO2

    Current DC - DC+Diameter 2.4mm 1.2mmParameters 100A, 12V 280A, 26V

    Packaging data mm TIG MIG0.8 -- 15kg reel0.9 -- 15kg reel1.0 -- 15kg reel1.2 -- 15kg reel1.6 5kg tube --2.4 5kg tube --

    Fume data MIG fume composition (wt %) (TIG fume negligible)Fe Mn Cr3 Ni Mo Cu OES (mg/m3)

    55 5 1.3

  • Rev 11 04/11 DS: A-13 (pg 6 of 7)

    SA2CrMo Solid welding wire for SAW.Product description Solid wire for Sub Arc Welding of 2Cr-1Mo steels, conforming to European specifications.

    Specifications AWS A5.23 EB3BS EN 12070 SCrMo2

    ASME IX Qualification QW432 F-No 6, QW442 A-No 4

    Composition C Mn Si S P Cr Mo(typical) SA2CrMo wire 0.10 0.6 0.12 0.010 0.012 2.4 1.0

    Deposit with LA436 0.08 0.8 0.4

  • Rev 11 04/11 DS: A-13 (pg 7 of 7)

    CORMET 2 / 2L All-positional flux cored wiresProduct description Cormet 2 is an all-positional flux cored wire suitable for welding fixed pipework. Made using a high purity steel

    sheath with a metal recovery of about 90% with respect to the wire.

    Cormet 2L, which is the low carbon version, is available to order; this wire finds applications for as-weldedrepairs in power generation plant and the lower hardness may provide some benefits in some petrochemicalapplications.

    Specifications Cormet 2 Cormet 2LAWS A5.29 E91T1-B3C/M E91T1-B3LC/MBS EN ISO 17634-B T62T1-1C/M-2C1M T62T1-1C/M-2C1ML

    ASME IX Qualification QW432 F-No 6, QW442 A-No 4

    Composition C* Mn Si S P Cr Mo Cu(weld metal wt %) min 0.05 -- -- -- -- 2.00 0.90 --

    max 0.12 1.25 0.80 0.030 0.030 2.50 1.20 0.30typ 0.06 1.0 0.3 0.01 0.01 2.3 1.0 0.05* Cormet 2L C 0.05%, typical 0.04%

    All-weld mechanical PWHT 690C/1-2h min Cormet 2 Cormet 2Lproperties typical typical (as-welded)

    Tensile strength MPa 620 725 --0.2% Proof stress MPa 540 625 --Elongation on 4d % 17 22 --Elongation on 5d % 15 20 --Impact energy + 20C J -- 45 40Hardness HV -- 235 280

    Operating parameters Shielding gas: 80%Ar-20%CO2 at 20-25l/min. Proprietary gases may be used but argon should not exceed 80%.The wire is also suitable for use with 100%CO2. (Note: for 100%CO2 shielding gas, voltage should be 1-2Vhigher.)Current: DC+ve ranges as below: mm amp-volt range typical stickout1.0 120 220A, 22 - 30V 150A, 25V 15 25mm1.2 160 260A, 24 - 30V 190A, 25V 15 25mm1.6 220 350A, 26 32V 260A, 28V 15 25mm

    Packaging data 15kg spools vacuum-sealed in barrier foil with cardboard carton.The as-packed shelf life is virtually indefinite.Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and prevent anypossibility of porosity, it is advised that part-used spools are returned to polythene wrappers.Where possible, preferred storage conditions are 60% RH max, 18C min.

    Fume data Fume composition (wt %)

    Fe Mn Ni Cr3 Cr6 Cu F OES (mg/m3)

    20 8 < 0.5 1 < 1 < 1 8 5

  • Rev 05 02/10 DS: A-14 (pg 1 of 3)

    DATA SHEET A-14METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected] CREEP RESISTING STEELInternet: http//www.metrode.com

    Alloy type1Cr-1Mo-V creep resisting alloy for elevatedtemperature service.

    Materials to be weldedASTM A389 grade C24 (cast).

    A356 grade 9 (cast).DIN 21CrMoV 5 11 (1.8070).

    15CrMoV 5 10 (1.7745).GS-17CrMoV 5 11 (1.7706) (cast).

    EN G17CrMoV5-10 (1.7706)GE B50A224

    ApplicationsCrMoV base materials provide good creep ruptureproperties up to about 580C, with a reasonable degreeof corrosion resistance in superheated steam.

    Typical applications for the cast materials include valvecasings and steam turbines, general use for boilers,pressure vessels in the power generation andpetrochemical industries.

    MicrostructureAfter PWHT the microstructure consists of temperedbainite.

    Products available

    Process Product SpecificationChromet 1V BS EN ECrMoV1BMMA

    13CMV --FCW Cormet 1V --

    General Data For MMA ElectrodesOperating parameters DC +ve or AC (OCV: 70V min)

    mm 2.5 3.2 4.0 5.0min A 70 80 100 140max A 110 140 180 240

    Storage 3 hermetically sealed ring-pull metal tins per carton, with unlimited shelf life. Direct use from tin will givehydrogen < 5ml/100g for longer than a working shift of 8h.For electrodes that have been exposed:Redry 250 300C/1-2h to ensure H2 < 10ml/100g, 300 350C/1-2h to ensure H2 < 5ml/100g. Maximum420C, 3 cycles, 10h total.Storage of redried electrodes at 50 200C in holding oven or heated quiver: no limit, but maximum 6 weeksrecommended. Recommended ambient storage conditions for opened tins (using plastic lid): < 60% RH, > 18C.

    Fume data Fume composition, wt % typical:Fe Mn Ni Cr Cu Pb F OES (mg/m3)

    15 5

  • Rev 05 02/10 DS: A-14 (pg 2 of 3)

    CHROMET 1V Basic coated MMA electrode for CrMoV creep resisting steelsProduct description MMA electrode with a basic, metal powder type, coating on low carbon high purity mild steel core wire. Moisture

    resistant coating provides very low weld metal hydrogen levels.

    Recovery is about 115% with respect to core wire, 65% with respect to whole electrode.

    Specifications DIN 8575 ECrMoV1 B 20BS EN ISO 3580-A E CrMoV1 B 3 2

    ASME IX Qualification QW432 F-No --, QW442 A-No --

    Composition C Mn Si S P Cr Mo V(weld metal wt %) min 0.05 0.70 -- -- -- 1.00 0.90 0.10

    max 0.15 1.50 0.50 0.025 0.025 1.30 1.30 0.35typ 0.08 0.85 0.3 0.012 0.012 1.2 1.10 0.20

    All-weld mechanical Typical PWHT 700C/1h Room Temperature High Temperatureproperties min typical +350C +400C +450C

    Tensile strength MPa 590 800 750 730 6950.2% Proof stress MPa 435 745 675 650 620Elongation on 4d % -- 20 -- -- --Elongation on 5d % 15 16 -- -- --Impact energy + 20C J 24 60 -- -- --Hardness HV -- 275 -- -- --

    Packaging data mm 2.5 3.2 4.0 5.0length mm 350 380 450 450kg/carton 13.8 15.0 16.8 17.4pieces/carton 690 372 243 159

    13CMV Basic coated MMA electrode for CrMoV creep resisting steelsProduct description MMA electrode with a basic, metal powder type, coating on low carbon high purity mild steel core wire. Moisture

    resistant coating provides very low weld metal hydrogen levels.

    The 13CMV electrode is manufactured to order and is of a similar composition to the Chromet 1V although thecarbon (at ~0.13%) and vanadium (at ~0.25%) are typically higher. The 13CMV can also be manufactured byprior agreement to the GE specification B50A273.

    Recovery is about 115% with respect to core wire, 65% with respect to whole electrode.

    Specifications DIN 8575 (ECrMoV1 B 20)BS EN 1599 (ECrMoV1 B 32)GE B50A273 By prior agreement only.

    ASME IX Qualification QW432 F-No --, QW442 A-No --

    Composition C Mn Si S P Cr Mo V * Ni(weld metal wt %) min 0.10 0.3 -- -- -- 1.00 0.90 0.20 --

    max 0.15 1.0 0.50 0.020 0.030 1.50 1.30 0.30 0.4typ 0.13 0.6 0.3 0.012 0.012 1.2 1.10 0.25 0.05

    * In the GE specification V = 0.40-0.55%.

    Packaging data mm 2.5 3.2 4.0 5.0length mm 350 380 450 450kg/carton 13.5 15.0 18.0 16.5pieces/carton 687 396 258 153

  • Rev 05 02/10 DS: A-14 (pg 3 of 3)

    CORMET 1V All-positional rutile flux cored wire for CrMoV creep resisting steelsProduct description Cormet 1V (available to order) is an all-positional flux cored wire suitable for welding fixed pipework. Made

    using high purity steel sheath with a metal recovery of about 90% with respect to the wire.

    Specifications There are no relevant national standards.

    ASME IX Qualification QW432 F-No --, QW442 A-No --

    Composition C Mn Si S P Cr Mo V Ni Cu(weld metal wt %) min 0.10 0.50 0.15 -- -- 1.00 0.90 0.20 -- --

    max 0.15 1.00 0.50 0.020 0.020 1.50 1.30 0.30 0.3 0.3typ 0.13 0.8 0.3 0.01 0.01 1.3 1.1 0.25 0.1 0.1

    All-weld mechanical PWHT 720C/3h typicalproperties Tensile strength MPa 650

    0.2% Proof stress MPa 550Impact energy + 20C J 50Hardness HV 230

    Operating parameters Shielding gas: 80%Ar-20%CO2 at 20-25l/min. Proprietary gases may be used but argon should not exceed 80%.The wire is also suitable for use with 100%CO2.Current: DC+ve ranges as below (when using 100%CO2 increase voltage by about 2V): mm amp-volt range typical stickout1.2 160-260A, 24-30V 190A, 25V 15-25mm

    Packaging data Spools vacuum-sealed in barrier foil with cardboard carton: 15kgThe as-packed shelf life is virtually indefinite.Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and prevent anypossibility of porosity, it is advised that part-used spools are returned to polythene wrappers.Where possible, preferred storage conditions are 60% RH max, 18C min.

    Fume data Fume composition (wt %)Fe Mn Ni Cr3 Cr6 Cu F OES (mg/m3)

    20 8

  • Rev 08 05/11 DS: A-15 (pg 1 of 4)

    DATA SHEET A-15METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected] FOR ELEVATED TEMPERATUREInternet: http//www.metrode.com

    Alloy type5%Cr-%Mo steel for elevated temperature service upto 600C.

    Materials to be weldedplates:ASTM A387 grade 5

    pipe/tube:

    ASTM A335 grades P5, P5bA234 grade WP5 (fittings)A199 grade T5A213 grades T5, T5b

    BS 3604 grades HFS 625, CFS 625DIN 12CrMo 19 5 (1.7362)

    X7CrMo 6 1 (1.7373)X11CrMo 6 1 (1.7374)

    forgings:

    ASTM A182 grade F5, F5aA336 grade F5

    BS 1503 grade 6251501 grade 625 (section & bar)

    cast:

    ASTM A217 grade C5BS 1504 grade 625

    3100 grade B5DIN GS-12CrMo 19 5 (1.7353, 1.7363)

    ApplicationsFor elevated temperature service up to 600C, withcorrosion resistance in superheated steam, hot hydrogengas and high sulphur crude oils.

    Used primarily for boiler superheaters, heatexchangers, piping and pressure vessels in oilrefineries.

    This weld metal has also been used successfully forsubsequent nitriding, for example in the repair of 3Cr-1Mo-V and 2Cr-Mo-1A1 (BS En40C, En41) steels usedfor moulds for injection-moulding of plastics.

    MicrostructureIn the PWHT condition the microstructure consists oftempered bainite.

    Welding guidelinesOwing to the as-deposited hardness (up to 400HV) andthe relatively poor fracture resistance of the 5CrMobainitic microstructure, a preheat and minimuminterpass temperature of 200C should be applied toensure freedom from hydrogen induced cold cracking.Properly controlled and handled electrodes will provideweld metal with hydrogen 150C) to PWHT is permissible, followedby NDE. If PWHT will be applied after complete coolout and NDE, the preheat temperature should bemaintained for some time after welding, according tothickness, to promote hydrogen dispersal. The latterprecaution is less significant for the TIG and solid wireMAG processes.

    PWHTPWHT to temper the weldment would normally be inthe range 705-760C (eg. BS2633 & PD5500 710-750C, ASME B31.3 705-760C). Minimum holdingtime recommended is two hours. For castings theminimum suggested PWHT temperature is lower, withtemperatures as low as 670C being specified.

    Products available

    Process Product SpecificationMMA Chromet 5 AWS E8015-B6TIG/MIG 5CrMo AWS ER80S-B6FCW Cormet 5 AWS E81T1-B6

  • Rev 08 05/11 DS: A-15 (pg 2 of 4)

    CHROMET 5 5%Cr-0.5%Mo MMA electrodeProduct description Basic metal powder type made on high purity low carbon core wire. Moisture resistant coating gives very low

    weld metal hydrogen levels.

    Recovery is about 120% with respect to core wire, 65% with respect to whole electrode.

    Specifications AWS A5.5 E8015-B6AWS A5.4 E502-15 This classification has now been withdrawn from A5.4BS EN ISO 3580-A E CrMo5 B 3 2 H5BS EN ISO 3580-B E 6216-5CMBS 2493 (5CrMoBH)DIN 8575 ECrMo5 B26

    ASME IX Qualification QW432 F-No 4, QW442 A-No 5

    Composition C * Mn Si S P Cr Ni Mo Cu(weld metal wt %) min 0.05 0.50 -- -- -- 4.0 -- 0.45 --

    max 0.10 1.00 0.80 0.025 0.025 6.0 0.40 0.65 0.3typ 0.06 0.8 0.40 0.01 0.015 5 0.2 0.55 0.05

    * Carbon 0.05-0.10% for E8015-B6 ( 18C.

    Fume data Fume composition, wt % typical:Fe Mn Ni Cr Cu Pb F OES (mg/m3)

    15 5

  • Rev 08 05/11 DS: A-15 (pg 3 of 4)

    5CrMo Solid TIG and MIG wire for 5%Cr-0.5%Mo creep resisting steelsProduct description Solid copper coated wire for TIG and MIG, alloyed with 5%Cr-0.5%Mo.

    Specifications AWS A5.28 ER80S-B6AWS A5.9 ER502 This classification has now been withdrawn from A5.9BS EN ISO 21952-A CrMo5SiBS 2901: Pt2 A34DIN 8575 SG CrMo5 (1.7373)

    ASME IX Qualification QW432 F-No 6, QW442 A-No 5

    Composition C Mn Si S P Cr Ni Mo Cu V(wire wt %) min 0.03 0.40 0.30 -- -- 5.5 -- 0.50 --- --

    max 0.10 0.70 0.50 0.020 0.020 6.0 0.3 0.65 0.3 0.03typ 0.07 0.5 0.4 0.01 0.01 5.7 0.1 0.55 0.2 0.02

    All-weld mechanical Typical values after PWHT: min. * TIG 745C/1h TIG 740C/2hproperties Tensile strength MPa 590 640 570

    0.2% Proof stress MPa 470 530 440Elongation on 4d % 17 28 25Elongation on 5d % 17 25 20Reduction of area % -- 72 78Impact energy + 20C J -- 240 --Hardness cap/mid HV10 -- 195/215 --

    * Minimum values after PWHT 745C (730-760C) for 1h according to AWS A5.28 for ER80S-B6 and BS EN12070.

    Typical operating TIG MIGparameters Shielding Argon * Ar + 1-3%O2 or 5-20% CO2

    Current DC- DC+Diameter 2.4mm 1.2mmParameters 140A, 14V 260A, 26V* Also required as a purge for root runs.

    Packaging data mm TIG MIG1.2 -- 15kg spool1.6 5kg tube --2.4 5kg tube --

    Fume data MIG fume composition (wt %) (TIG fume negligible)

    Fe Mn Cr3 Ni Mo Cu OES (mg/m3)

    50 5 3

  • Rev 08 05/11 DS: A-15 (pg 4 of 4)

    CORMET 5 All-positional flux cored wireProduct description Cormet 5 is an all-positional flux cored wire suitable for welding fixed pipework. Made using a high purity steel

    sheath with a metal recovery of about 90% with respect to the wire.

    Specifications AWS A5.29 E81T1-B6C/MBS EN ISO 17634-B T55T1-1C/M-5CM

    ASME IX Qualification QW432 F-No 6, QW442 A-No 5

    Composition C Mn Si S P Cr Mo Cu Ni(weld metal wt %) min 0.05 -- -- -- -- 4.00 0.45 -- --

    max 0.10 1.20 0.50 0.030 0.030 6.00 0.65 0.3 0.40typ 0.06 0.8 0.3 0.01 0.01 5 0.5 0.05 0.01

    All-weld mechanical PWHT 745C/2h * min typicalproperties Tensile strength MPa 550 690

    0.2% Proof stress MPa 470 600Elongation on 4d % 19 22Elongation on 5d % 17 19Reduction of area % -- 67

    * BS EN ISO requires 1 hour PWHT. AWS requires 2 hour PWHT.

    Operating parameters Shielding gas: 80%Ar-20%CO2 at 20-25l/min. Proprietary gases may be used but argon should not exceed 80%.The wire is also suitable for use with 100%CO2. (Note: for 100%CO2 shielding gas, voltage should be 1-2Vhigher.)Current: DC+ve ranges as below: mm amp-volt range typical stickout1.2 160 260A, 24-30V 190A, 25V 15 25mm

    Packaging data Spools vacuum-sealed in barrier foil with cardboard carton: 1.2mm diameter 15kgThe as-packed shelf life is virtually indefinite.Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and prevent anypossibility of porosity, it is advised that part-used spools are returned to polythene wrappers.Where possible, preferred storage conditions are 60% RH max, 18C min.

    Fume data Fume composition (wt %)

    Fe Mn Ni Cr3 Cr6 Cu F OES (mg/m3)

    20 8 < 0.5 1.5 1.5 < 1 8 3.3

  • Rev 08 05/11 DS: A-16 (pg 1 of 4)

    DATA SHEET A-16METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected] FOR ELEVATED TEMPERATUREInternet: http//www.metrode.com

    Alloy type9%Cr-1%Mo martensitic alloy for elevated temperatureservice.

    Materials to be weldedplates:ASTM A387 grade 9

    pipe/tube:

    ASTM A335 grade 9A234 grade WP9 (fittings)A199 grade T9A213 grades T9

    BS 3604 grades CFS & HFS 629-470, CFS& HFS 629-590

    DIN X12CrMo 9 1 (1.7386)X7CrMo 9 1 (1.7388)

    forgings:

    ASTM A182 grade F9A336 grade F9

    cast:

    ASTM A217 grade C12BS 1504 grade 629

    3100 grade B6DIN GS-12CrMo 10 1 (1.7389)

    ApplicationsFor elevated temperature service up to 600C, withreasonable degree of corrosion resistance in superheatedsteam, hot hydrogen gas and high sulphur crude oils,where higher performance than 5%Cr-0.5%Mo steels isrequired.

    Used primarily for boiler superheater tubing, heatexchangers, piping and pressure vessels in oilrefineries and power plants.

    MicrostructureIn the PWHT condition the microstructure consists oftempered martensitic bainite.

    Welding guidelinesOwing to the as-deposited hardness (up to 450HV) andthe relatively poor fracture resistance of the martensitic9CrMo microstructure, a preheat and minimuminterpass temperature of 200C shall be applied toensure freedom from hydrogen induced cracking.Properly controlled and handled electrodes will provideweld metal with hydrogen

  • Rev 08 05/11 DS: A-16 (pg 2 of 4)

    CHROMET 9 9%Cr-1%Mo MMA electrodeProduct description Basic metal powder type made on high purity low carbon core wire. Moisture resistant coating giving very low

    weld metal hydrogen levels.

    Recovery is about 120% with respect to core wire, 65% with respect to whole electrode.

    Specifications AWS A5.5 E8015-B8AWS A5.4 E505-15 This classification has now been withdrawn from A5.4BS EN ISO 3580-A E CrMo9 B 3 2 H5BS EN ISO 3580-B E 6216-9C1MBS 2493 9CrMoBHDIN 8575 ECrMo9 B26

    ASME IX Qualification QW432 F-No 4, QW442 A-No 5

    Composition C * Mn Si S P Cr Ni Mo Cu(weld metal wt %) min 0.05 0.50 -- -- -- 8.0 -- 0.90 --

    max 0.10 1.00 0.60 0.025 0.025 10.0 0.40 1.20 0.3typ 0.06 0.75 0.35 0.012 0.015 9 0.2 1

  • Rev 08 05/11 DS: A-16 (pg 3 of 4)

    9CrMo TIG and MIG copper coated wire for 9%Cr-1%MoProduct description Solid copper coated wire for TIG and MIG.

    Specifications AWS A5.28 ER80S-B8AWS A5.9 ER505 This classification has now been withdrawn from A5.9BS EN ISO 21952-A CrMo9BS 2901: Pt1 A35DIN 8575 SG CrMo9 (1.7388)

    ASME IX Qualification QW432 F-No 6, QW442 A-No 5

    Composition C Mn Si S P Cr Ni Mo Cu(wire wt %) min 0.06 0.40 0.30 -- -- 8.5 -- 0.80 --

    max 0.10 0.60 0.50 0.020 0.020 10.0 0.5 1.20 0.35typ 0.07 0.5 0.4 0.01 0.015 9 0.1 0.9 0.1

    All-weld mechanical Typical values after 745C/1h: min TIGproperties Tensile strength MPa 590 730

    0.2% Proof stress MPa 470 612Elongation on 4d % 17 25Impact energy + 20C J -- 80Hardness cap/mid HV -- 225/230

    Typical operating TIG MIGparameters Shielding Argon * Ar + 1-3%O2 or 5-20% CO2

    Current DC- DC+Diameter 2.4mm 1.2mmParameters 140A, 14V 260A, 26V* Also required as a purge for root runs.

    Packaging data mm TIG MIG1.2 -- To order1.6 5kg tube --2.4 5kg tube --3.2 To order --

    Fume data MIG fume composition (wt %) (TIG fume negligible):

    Fe Mn Cr3 Ni Mo Cu OES (mg/m3)

    50 4 6

  • Rev 08 05/11 DS: A-16 (pg 4 of 4)

    CORMET 9 All-positional flux cored wireProduct description Cormet 9 is an all-positional flux cored wire suitable for welding fixed pipework. Made using a high purity steel

    sheath with a metal recovery of about 90% with respect to the wire.

    Specifications AWS A5.29 E81T1-B8C/MBS EN ISO 17634-B T55T1-1C/M-9C1M

    ASME IX Qualification QW432 F-No 6, QW442 A-No 5

    Composition C Mn Si S P Cr Mo Cu Ni(weld metal wt %) min 0.05 -- -- -- -- 8.0 0.85 -- --

    max 0.12 1.25 1.00 0.030 0.030 10.5 1.20 0.5 0.4typ 0.06 0.8 0.3 0.01 0.01 9 1.0 0.05 0.3

    All-weld mechanical PWHT 745C/2h * min typicalproperties Tensile strength MPa 550 640

    0.2% Proof stress MPa 470 500Elongation on 4d % 19 24Elongation on 5d % 17 21Reduction of area % -- 65* BS EN ISO-B requires 1 hour PWHT. AWS Requires 2 hour PWHT.

    Operating parameters Shielding gas: 80%Ar-20%CO2 at 20-25l/min. Proprietary gases may be used but argon should not exceed 80%.The wire is also suitable for use with 100%CO2. (Note: for 100%CO2 shielding gas, voltage should be 1-2Vhigher.)Current: DC+ve ranges as below: mm amp-volt range typical stickout1.2 160 260A, 24-30V 190A, 25V 15 25mm

    Packaging data Spools vacuum-sealed in barrier foil with cardboard carton: 1.2mm diameter 15kgThe as-packed shelf life is virtually indefinite.Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and prevent anypossibility of porosity, it is advised that part-used spools are returned to polythene wrappers.Where possible, preferred storage conditions are 60% RH max, 18C min.

    Fume data Fume composition (wt %)

    Fe Mn Ni Cr3 Cr6 Cu F OES (mg/m3)

    20 8 < 0.5 3 3 < 1 8 1.7

  • Rev 17 05/11 DS: A-17 (pg 1 of 7)

    DATA SHEET A-17METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected] - MODIFIED 9CrMoInternet: http//www.metrode.com

    Alloy typeModified 9CrMo for high temperature creep resistance.

    Materials to be weldedASTMA 213 T91 (seamless tubes)A 335 P91 (seamless pipes)A 387 Gr 91 (plates)A 182 / A336 F91 (forgings)A 217 C12A (castings)A 234 WP91A 369 FP91DIN / BS EN1.4903 (X10CrMoVNb 9 1)BS1503 Gr913059-2 Gr91AFNORNF A-49213/A-49219 Gr TU Z 10 CDVNb 09-01

    ApplicationsThese consumables are designed to weld equivalent type91 9CrMo steels modified with small additions ofniobium, vanadium and nitrogen to give improved longterm creep properties.These consumables are specifically intended for highintegrity structural service at elevated temperature so theminor alloy additions responsible for its creep strength arekept above the minimum considered necessary to ensuresatisfactory performance. In this case, weldments will beweakest in the softened (intercritical) HAZ region of parentmaterial, as indicated by so-called type IV failure intransverse weld creep tests.Modified 9CrMo steels are now widely used forcomponents such as headers, main steam piping andturbine casings, in fossil fuelled power generatingplants. They may also find future use in oil refineries andcoal liquefaction and gasification plants.

    MicrostructureIn the PWHT condition the microstructure consists oftempered martensite with alloy carbides.

    PWHTMinimum preheat temperature 150C with maximuminterpass temperature of 300C; in practice a preheat-

    interpass range of 200300C is normal. To ensure fullmartensite transformation, welds should be cooled to~100C prior to PWHT.ASME base material codes and AWS consumableclassifications allow PWHT down to 730C, whilst BS ENconsumable classifications specify 750C. Optimumproperties are obtained with a tempering parameter (P) ofaround 21 or above, where P = C+273 (log t + 20) x 103.Maximum PWHT temperature varies, AWS consumablespecifications are 760C, BS EN 770C; BS 1503 allowsup to 790C for base material forgings.When compared with directly matching weld metal, theaddition of some nickel and reduction of niobium providesa useful improvement in toughness after conveniently shortPWHT at 750760C. PWHT above 765C is notgenerally recommended for Ni-containing consumables,because some re-hardening could occur due to theproximity of Ac1. Some authorities specify weld metal Ni +Mn < 1.5% to keep Ac1 high enough to allow higherPWHT temperature if required.

    Additional informationMore detailed information on the products and propertiesof P91 are available in the Technical Profile "WeldingConsumables for P91 Steels for the Power GenerationIndustry" available from the Technical Department.

    Products available

    Process Product SpecificationMMA Chromet 9MV-N AWS E9015-B9

    Chromet 9MVN+ AWS E9015-B9Chromet 9-B9 AWS E9015-B9Chromet 91VNB AWS E9015-B9

    TIG 9CrMoV-N AWS ER90S-B9MIG (MCW) Cormet M91 AWS E90C-B9SAW 9CrMoV-N (wire) AWS EB9

    LA491 (flux) BS EN SA FB 2LA492 (flux) BS EN SA CS 1L2N (flux) BS EN SF CS 2

    FCW Supercore F91 AWS E91T1-B9

  • Rev 17 05/11 DS: A-17 (pg 2 of 7)

    General Data for all Modified 9CrMo (P91) ElectrodesDescription Recovery is approx 120% with respect to core wire, 65% with respect to whole electrode.

    Moisture resistant coatings giving very low weld metal hydrogen levels.

    Operating parameters DC +ve. AC (OCV 70V min)

    mm 2.5 3.2 4.0 5.0min A 70 80 100 140max A 110 140 180 240

    Storage 3 hermetically sealed ring-pull metal tins per carton, with unlimited shelf life. Direct use from tin willgive hydrogen 375 >285

    0.2% Proof stress MPa 530 640 >360 >255 >175Elongation on 4d % 17 22 -- -- --Elongation on 5d % 17 19 >15 >17 >21Reduction of area % -- 60 >68 >75 >80Impact energy + 20C J 47 65 -- -- --Lateral expansion + 20C mm -- 1.00 -- -- --Hardness after PWHT HV -- 250 -- -- --Hardness as-welded HV -- 450 -- -- --(1) Minimum strength for parent material is lower than AWS requirement shown.

    Packaging data mm 2.5 3.2 4.0 5.0length mm 350 380 450 450kg/carton 12.9 15.0 17.4 16.5pieces/carton 651 405 234 150

  • Rev 17 05/11 DS: A-17 (pg 3 of 7)

    CHROMET 9MVN+ MMA electrode to AWS/BS EN with high Ni to maximise toughnessProduct description MMA electrode Basic type made on matching core wire with Ni addition and lower Nb for improved

    toughness, conforming to BS EN ISO 3580-A and AWS specifications.

    Specifications AWS A5.5 E9015-B9BS EN ISO 3580-A E CrMo91 B 3 2

    ASME IX Qualification QW422 P-No 5B group 2, QW432 F-No 4, QW442 A-No 5

    Composition C Mn Si S P Cr Ni* Mo Nb V N Cu Sn Ni+Mn(weld metal wt %) min 0.08 0.50 -- -- -- 8.0 0.4 0.85 0.04 0.15 0.03 -- -- --

    max 0.12 1.20 0.30 0.01 0.01 10.0 0.8 1.2 0.07 0.25 0.07 0.25 375 >285

    0.2% Proof stress MPa 530 590 >360 >255 >175Elongation on 4d % 17 22.5 -- -- --Elongation on 5d % 15 19 >15 >17 >21Reduction of area % -- 63 >68 >75 >80Impact energy + 20C J -- 75 -- -- --Lateral expansion + 20C mm -- 1.10 -- -- --Hardness after PWHT HV -- 240 -- -- --Hardness as-welded HV -- 450 -- -- --(1) Minimum strength for parent material is lower than AWS requirement shown.

    Packaging data mm 2.5 3.2 4.0* 5.0length mm 350 380 380/450 450kg/carton 13.5 15 15/17.1 16.5pieces/carton 657 378 264/249 150* 450mm is standard length for 4.0mm, 380mm produced to order.

  • Rev 17 05/11 DS: A-17 (pg 4 of 7)

    CHROMET 91VNB MMA electrode for root weldingProduct description MMA electrode - Basic coated for root welding applications made on high purity steel core wire.

    Specifications AWS A5.5 E9015-B9BS EN ISO 3580-A E CrMo91 B 3 2

    ASME IX Qualification QW422 P-No 5B group 2, QW432 F-No 4, QW442 A-No 5

    Composition C Mn Si S P Cr Ni Mo Nb V N Cu Al(weld metal wt %) min 0.08 0.4 -- -- -- 8.0 0.4 0.85 0.03 0.15 0.03 -- --

    max 0.12 1.2 0.3 0.01 0.01 9.5 0.8 1.2 0.07 0.25 0.07 0.25 0.04typ 0.1 0.8 0.25 0.008 0.008 8.5 0.5 1 0.04 0.2 0.05 0.05 0.01

    All-weld mechanical PWHT 760C / 2h min(1) typicalproperties Tensile strength MPa 620 750

    0.2% Proof stress MPa 530 600Elongation on 4d % 17 20Elongation on 5d % 17 18Impact energy + 20C J -- 55(1) Minimum strength for parent material is lower than AWS requirement shown.

    Operating parameters DC +ve, DC ve or AC (OCV 70V min)

    mm 2.5min A 60max A 110

    Packaging data mm 2.5length mm 350kg/carton 13.5pieces/carton 678

    9CrMoV-N Solid wire for TIG and SAWProduct description Solid wire, non-copper coated, for TIG and SAW

    Specifications TIG SAWAWS A5.23 -- EB9AWS A5.28 ER90S-B9 --BS EN ISO 21952-A W CrMo91 --BS EN ISO 24598-A -- (S CrMo91)

    ASME IX Qualification QW422 P-No 5B group 2, QW432 F-No 6, QW442 A-No 5

    Composition C Mn Si S P Cr Ni Mo Nb V N Cu Al(wire wt %) min 0.08 0.40 0.15 -- -- 8.5 0.40 0.85 0.03 0.15 0.03 -- --

    max 0.13 0.80 0.50 0.010 0.010 9.5 0.80 1.10 0.08 0.25 0.07 0.10 0.04typ 0.1 0.5 0.25 0.006 0.008 8.7 0.6 1 0.05 0.2 0.05 0.03

  • Rev 17 05/11 DS: A-17 (pg 5 of 7)

    9CrMoV-N (continued)Parameters TIG SAW MIG

    Shielding Argon LA492, LA491 or L2NfluxCurrent DC- DC+Typical parameters 2.4mm 100A, 12V 450A, 30V, 450mm/min

    9CrMoV-N not recommendedfor MIG, Cormet M91 orSupercore F91 should beused.

    Packaging data mm TIG SAW MIG

    0.8/0.9/1.0/1.2 0.7 / 5 / 15 kgspools to order. --

    1.6 5kg tube --2.0 5kg tube2.4 5kg tube 25kg coil3.2 5kg tube 25kg coil

    Not recommended - seeSupercore F91 or CormetM91.

    Fume data Fume composition (wt %); TIG and SAW fume are negligible:

    Fe Mn Ni Cr3 Mo Cu OES (mg/m3)50 4 < 0.4 6 0.5 < 0.5 5

    CORMET M91 Metal cored wire for MIG weldingProduct description Metal cored wire for MIG welding. High purity steel sheath with 96% metal recovery with respect to wire.

    Specifications AWS A5.28 E90C-B9BS EN ISO 17634-B T69T15-0M-9C1MV

    ASME IX Qualification QW422 P-No 5B group 2, QW432 F-No 6, QW442 A-No 5

    Composition C Mn* Si S P Cr Ni* Mo Nb V N Cu Al(weld metal wt %) min 0.08 0.60 -- -- -- 8.0 -- 0.85 0.03 0.18 0.03 -- --

    max 0.13 1.20 0.50 0.015 0.020 10.0 0.80 1.20 0.07 0.25 0.07 0.15 0.04typ 0.1 1 0.3 0.01 0.01 9 0.3 1 0.05 0.2 0.05 0.05 0.03* Ni + Mn 1.50

    All-weld mechanical PWHT 760C / 2h min typicalproperties Ar-2%CO2 80/20 Ar-He-CO2

    Tensile strength MPa 690 780 780 7800.2% Proof stress MPa 565 650 650 650Elongation on 4d % 16 17 17 17Elongation on 5d % 14 16 16 16Impact energy + 20C J -- 30 25 35Lateral expansion + 20C mm -- 0.30 0.28 0.45Hardness HV -- 260 260 260

    Parameters Operability is influenced by the type of shielding gas; higher CO2 levels, up to 20%, givebetter arc characteristics but lower CO2 and O2 levels produce better impact properties. Thebest compromise is considered to be obtained from Ar-2%CO2 although if impactproperties are not a major concern, higher CO2 levels can be used to obtain optimum arccharacteristics. mm Gas flow Optimum Stickout1.2 15 25 l/min DC+ 260A 28V 10 20mm1.6 15 25 l/min DC+ 330A 29V 15 25mm

    Packaging data Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and preventany possibility of porosity, it is advised that part-used spools are returned to polythene wrappers. 15kgspools.Where possible, preferred storage conditions are 60% RH max, 18C min.

    Fume data Fume composition (wt %)Fe Mn Ni Cr3 Mo Cu OES (mg/m3)60 5 < 0.5 5

  • Rev 17 05/11 DS: A-17 (pg 6 of 7)

    SUPERCORE F91 All-positional flux cored wireProduct description All-positional flux cored wire designed to weld equivalent modified 9CrMo steels (P91). Rutile flux system

    with an alloyed strip producing weld metal recovery of about 90%.

    Specifications AWS A5.29 E91T1-B9C/MBS EN ISO 17634-B T69T1-1C/M-9C1MV

    ASME IX Qualification QW432 F-No -, QW442 A-No -

    Composition C Mn Si S P Cr Ni Mo Nb V N Cu Al Ni+Mn(weld metal wt %) min 0.08 0.60 -- -- -- 8.0 -- 0.85 0.02 0.15 0.02 -- -- --

    max 0.13 1.20 0.50 0.015 0.020 10.0 0.80 1.2 0.07 0.25 0.07 0.15 0.04 1.50typ 0.1 0.8 0.3 0.010 0.016 9 0.5 1 0.04 0.2 0.05 0.05 0.01 1.30

    All-weld mechanical PWHT 760C / 2h (6h) min typical typical High Temperatureproperties 760C/2h 760C/6h +566C +600C +650C

    Tensile strength MPa 690 790 750 450 420 3960.2% Proof stress MPa 565 660 630 360 288 245Elongation on 4d % 16 20 23 21 27 29Elongation on 5d % 14 18 20 20 25 26Reduction of area % -- 55 58 73 81 85Impact energy + 20C J -- 28 36 -- -- --Hardness HV -- 260 250 -- -- --

    Operating parameters Shielding gas: 80%Ar-20%CO2 (or 15 25%CO2) or 100% CO2 at 20-25l/min.Current: DC+ve ranges as below: welding position amp-volt range * typical stickout1.2mm (0.045in) Positional 140-170A, 24-26V 160A, 25V 15-25mm* Using 100%CO2 the voltage should be increased by 1-2V

    Packaging data Spools vacuum-sealed in barrier foil with cardboard carton: 15kg (33 lbs)The as-packed shelf life is virtually indefinite.Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and preventany possibility of porosity, it is advised that part-used spools are returned to polythene wrappers.Where possible, preferred storage conditions are 60% RH max, 18C min.

    Fume data Fume composition (wt %), shielding gas 80%Ar-20%CO2:

    Fe Mn Ni Cr3 Cr6 Cu F OES (mg/m3)

    18 8 < 0.5 3 3 < 1 8 1.7

  • Rev 17 05/11 DS: A-17 (pg 7 of 7)

    LA492, LA491, L2N Sub-arc fluxes for use with 9CrMoV-N solid wireProduct description LA491 is an agglomerated fluoride-basic submerged arc welding flux. LA492 is an agglomerated calcium

    silicate flux for submerged arc welding. L2N is a fused calcium silicate flux for submerged arc welding.

    Specifications LA491 LA492 L2NBS EN 760 (flux) SA FB 255 AC SA CS 155 DC SF CS 2 DCAWS A5.23 (flux wire combination) (F62PZ-EB9-B9) (F62PZ-EB9-B9) (F62PZ-EB9-B9)

    Composition LA491 LA492 L2N(flux wt %) SiO2 + Ti O2 15% 20% 30%

    CaO + Mg O 40% 40% 35%AlO3 + MnO 20% 20% 5%CaF2 25% 20% 20%Basicity index (Boniszewski) ~2.7 ~2.2 ~1.3

    Analysis deposit C Mn Si S P Cr Ni Mo Nb V N(typical) 9CrMoV-N Wire 0.10 0.6 0.30 0.005 0.005 8.8 0.6 1 0.06 0.20 0.05

    Deposit with LA491 0.08 0.6 0.35 0.005 0.010 8.5 0.6 1 0.05 0.17 0.05Deposit with LA492 0.08 0.5 0.30 0.005 0.012 8.3 0.6 1 0.05 0.16 0.05Deposit with L2N 0.09 0.5 0.6 0.005 0.012 8.3 0.6 1 0.04 0.16 0.05

    All-weld mechanical PWHT 750760C / 23h min SAW typical SAW typical SAW typicalproperties LA491 flux LA492 flux L2N flux

    Tensile strength MPa 620 750 720 7500.2% Proof stress MPa 415 630 610 630Elongation on 4d % 16 25 25 25Elongation on 5d % 17 23 23 23Reduction of area % -- 70 70 70Impact energy + 20C J --* 40 45 35Hardness HV (mid) -- 250 230 250* Minimum impact required by BS EN 12070: SCrMo91 is 47 J.

    Parameters LA491, LA492 L2NAC or DC+ 800A maximum AC or DC+ 900A maximum

    Packaging data LA491 LA492 L2N25kg sealed drums 22.5kg sealed drums Packaging: 20kg sealed drumsPreferred storage 18C. Preferred storage 18C.If flux becomes damp, rebake at 300350C/ 12hours to restore to as-packed condition. For criticalwork, it is recommended to redry to ensure

  • Rev 08 05/09 DS: A-18 (pg 1 of 3)

    DATA SHEET A-18METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected] FOR E911 CrMo STEELInternet: http//www.metrode.com

    Alloy typeModified 9CrMo type generically called E911, with anominal composition of 9%Cr-1%Mo-1%W+NbVN.

    Materials to be weldedEN/DIN 1.4905 X11CrMoWVNb 9 1 1

    1.4906 G-X12CrMoWVNbN 10 1 1 (cast)ASTM A182/A336 F911 (forgings)

    A213 T911 (seamless tube)A234 WP911 (fittings)A335 P911 (seamless pipe)A369 FP911 (forged pipe)A387 Grade 911 (plate)

    ApplicationsElectrodes for the new European creep-resistant steelE911, which is essentially the ASTM P91 type with1%W added to increase creep strength for service up toat least 600C.

    These consumables are mainly intended for castings,which have a slightly higher Cr level. Castings alsohave up to 1%Ni to suppress retained ferrite; in wroughtproducts nickel is limited to 0.4%. For microstructuralcontrol and to optimise toughness after PWHT, the weldmetal has about 0.6%Ni added.

    Applications for E911 steels include components suchas headers, main steam piping, boiler tubes, turbinecasings and steam valves in fossil fuelled powergenerating plants. It may also find future use in oilrefineries and coal liquefaction and gasificationplants.

    MicrostructureIn the PWHT condition consists of tempered martensite.

    Welding guidelinesPreheat-interpass range for E911 is 200-300C. BeforePWHT it is preferable to cool to 100C or lower toensure full martensite transformation.

    PWHTPWHT requirements are essentially the same as for P91,which requires PWHT in the range 730-780C.Castings are often PWHT at temperatures towards thebottom of this range but the time is proportionallyincreased to ensure sufficient tempering. As a generalrule the tempering parameter (P), should be 21, orhigher, to achieve adequate tempering.

    P = C+273(20+logt) x 10-3 (t = time in hours)

    Suggested conditions are 12h at 730C or 3h at 760C.

    Related alloy groupsThis alloy is closely related to the P91 alloy (data sheetA-17) and P92 alloy (data sheet A-20). The 9CrWVTIG wire (A-20) can be used in conjunction withChromet 10MW. Also see alloy 921 (data sheet A-25).

    Products available

    Process Product SpecificationMMA Chromet 10MW --FCW Cormet 10MW --

  • Rev 08 05/09 DS: A-18 (pg 2 of 3)

    CHROMET 10MW MMA electrode for E911 creep-resisting steelProduct description MMA electrode with a basic low hydrogen flux system made on high purity steel core wire. Electrode is all-

    positional with a moisture resistant coating giving very low weld metal hydrogen levels.

    Recovery is about 120% with respect to core wire, 65% with respect to whole electrode.

    Specifications AWS A5.5 E9015-G (E9015-B9 modified)

    ASME IX Qualification QW432 F-No --, QW442 A-No --

    Composition C Mn Si S P Cr Ni Mo W Nb V N Al(weld metal wt %) min 0.08 0.50 0.15 -- -- 9.0 0.40 0.85 0.85 0.04 0.18 0.03 --

    max 0.14 1.20 0.30 0.01 0.02 10.5 0.80 1.2 1.2 0.08 0.25 0.07 0.02typ 0.11 0.8 0.25 0.008 0.010 9.5 0.5 1 1 0.05 0.22 0.05 0.01

    All-weld mechanical Typical after PWHT: 730C/12hproperties typical

    Tensile strength MPa 7600.2% Proof stress MPa 620Elongation on 5d % 19Reduction of area % 62Impact energy + 20C J 60Hardness HV 250

    Operating parameters DC +ve or AC (OCV: 70V min)

    mm 3.2 4.0 5.0min A 80 100 140max A 140 180 240

    Packaging data mm 3.2 4.0 5.0length mm 380 450 450kg/carton 14.4 16.5 16.8pieces/carton 393 225 159

    Storage 3 hermetically sealed ring-pull metal tins per carton, with unlimited shelf life. Direct use from tin will givehydrogen < 5ml/100g for longer than a working shift of 8h.For electrodes that have been exposed:Redry 250 300C/1-2h to ensure H2 < 10ml/100g, 300 350C/1-2h to ensure H2 < 5ml/100g. Maximum420C, 3 cycles, 10h total.Storage of redried electrodes at 50 200C in holding oven or heated quiver: no limit, but maximum 6 weeksrecommended. Recommended ambient storage conditions for opened tins (using plastic lid): < 60% RH, > 18C.

    Fume data Fume composition, wt % typical:Fe Mn Ni Cr Cu Pb F OES (mg/m3)

    15 5

  • Rev 08 05/09 DS: A-18 (pg 3 of 3)

    Cormet 10MW Metal cored wire for E911 creep-resisting steelProduct description Metal cored wire designed to weld equivalent E911 steels. Metal powder core with an alloyed strip producing

    weld metal recovery of about 96%.

    Specifications AWS A5.29 No current national standards.

    ASME IX Qualification QW432 F-No -, QW442 A-No -

    Composition C Mn Si S P Cr Ni Mo W Nb V N B Al Cu(wire wt %) Min 0.08 0.50 -- -- -- 9.0 0.40 0.9 0.9 0.04 0.18 0.03 -- -- --

    Max 0.13 1.20 0.40 0.015 0.02 10.0 0.85 1.2 1.2 0.08 0.25 0.07 0.0015 0.04 0.1Typ 0.11 0.8 0.30 0.01 0.017 9.5 0.6 1.0 1.0 0.05 0.2 0.05 0.0005 0.01 0.05

    All-weld mechanical PWHT 755C / 3h typicalproperties Tensile strength 770

    0.2% Proof stress 650Elongation on 4d 11Elongation on 5d 9Reduction of area 20Impact energy + 20C 14Hardness 260

    Operating parameters Shielding gas: Ar + 2.5-20%CO2 at 20-25l/min (operability is improved at higher CO2 contents but impactproperties are better with lower CO2 contents).

    Current: DC+ve ranges as below: amp-volt range stickout1.2mm(0.045in) 260A, 28V 15-25mm

    Packaging data Spools vacuum-sealed in barrier foil with cardboard carton: 15kg (33 lbs)The as-packed shelf life is virtually indefinite.Resistance to moisture absorption is high, but to maintain the high integrity of the wire surface and prevent anypossibility of porosity, it is advised that part-used spools are returned to polythene wrappers.Where possible, preferred storage conditions are 60% RH max, 18C min.

    Fume data Fume composition (wt %), shielding gas 80%Ar-20%CO2:

    Fe Mn Ni Cr3 Cu Pb OES (mg/m3)

    60 5 < 0.5 5 < 0.1 < 0.1 5.0

  • Rev 02 05/09 DS: A-19 (pg 1 of 3)

    DATA SHEET A-19METRODE PRODUCTS LTDHANWORTH LANE, CHERTSEYSURREY, KT16 9LLTel: +44(0)1932 566721Fax: +44(0)1932 565168 SalesFax: +44(0)1932 569449 TechnicalFax: +44(0)1932 566199 ExportEmail: [email protected] CREEP RESISTING STEELInternet: http//www.metrode.com

    Alloy type12%Cr creep resisting steel also with nominally 1%Mo-0.5%W-0.3%V. The matching base material isgenerically called X20.

    Materials to be weldedAISI Type 422.DIN X20CrMoV 12 1 (1.4935)

    G-X22CrMoV 12 1 (1.4931) cast.BS 3604 grade 762.

    ApplicationsChromet 12MV deposits high strength martensitic weldmetal of nominally 0.2%C-12%Cr-1%Mo modifiedwith vanadium and tungsten. The alloying is balancedwith a small addition of nickel to ensure a fullymartensitic microstructure.

    12%CrMoV steels are used for critical heat and creepresisting service up to at least 550C. The highchromium level confers superior steam and firesidecorrosion performance compared with 2-9%CrMocreep-resisting steels.

    Used in cast and wrought form for high pressure steampiping and headers, heat exchangers and turbinecomponents, particularly in the power generationindustry and sometimes in petrochemical applications.

    MicrostructureIn the PWHT condition the microstructure consists oftempered martensite.

    Welding guidelinesThe room temperature hardness of as-deposited weldmetal exceeds 500HV over a wide range of cooling

    conditions. Preheat of 400C with maximum interpasstemperature of 500C is specified by DIN 8575. Thesetemperatures are above the austenite-martensitetransformation range (Ms-Mf about 350-150C) andmore recent procedures have benefited from welding inthe 200-350C preheat range to reduce grain-coarseningand promote some tempering of partially transformedmultipass weld metal.

    After welding, the joint must be cooled slowly to 120C(100-150C) and held for 1-2 hours, to allowtransformation before post-weld heat treatment. Ifimmediate heat treatment is not possible, thetransformation step must be followed by a post-heat ofabout 350C for 1-4 hours for hydrogen release, beforecooling below 60C is allowed. In this condition, thehard weld zone is potentially sensitive to stresscorrosion cracking (SCC) and must be kept dry, withminimum delay before PWHT.

    PWHTFor production welds typical PWHT is in thetemperature range 730-770C. Normally this would berequired for a minimum of three hours but will varyaccording to thickness, see appropriate application codefor details.

    Related alloy groupsThe newer P91 materials have replaced many of theoriginal applications for this alloy (data sheet A-17).

    Products available

    Process Product SpecificationMMA Chromet 12MV BS EN E CrMoWV 12 BTIG 12CrMoV BS EN W CrMoWV 12 Si

  • Rev 02 05/09 DS: A-19 (pg 2 of 3)

    CHROMET 12MV Basic all-positional MMA electrode for 12%Cr creep resisting steelProduct description Basic low hydrogen metal powder type made on high purity core wire. Moisture resistant coating giving very low

    weld metal hydrogen levels.

    Recovery is about 130% with respect to core wire, 65% with respect to whole electrode.

    Specifications BS EN ISO 3580-A E CrMoWV12 B 3 2DIN 8575 E CrMoWV 12 B 26

    ASME IX Qualification QW432 F-No --, QW442 A-No --

    Composition C Mn Si S P Cr Ni Mo W V(weld metal wt %) min 0.15 0.40 -- -- -- 10.0 -- 0.80 0.40 0.20

    max 0.22 1.30 0.80 0.025 0.025 12.0 0.8 1.20 0.60 0.40typ 0.20 0.8 0.25 0.010 0.017 11 0.5 1 0.5 0.3

    Elevated temperatureAll-weld mechanicalproperties

    PWHT 760C / 3 hrs Roomtemperature 350C 400C 450C

    min * typical min typ min typ min typTensile strength MPa 690 750 -- 590 -- 560 -- 5200.2% Proof stress MPa 550 550 370 450 355 420 325 410Elongation on 4d % -- 24 -- 18 -- 20 -- 17Elongation on 5d % 15 21 -- 16 -- 16 -- 14Reduction of area % -- 55 -- 50 -- 48 -- 48Impact energy + 20C J 34 40 -- -- -- -- -- --

    0C -- 33 -- -- -- -- -- --Hardne