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SUBMERGED ARCPRODUCT CATALOG

For Mild and Low Alloy Steels, Hardfacing and Stainless Steels

Welding. It’s our business.Lincoln Electric provides advancedwelding and cutting technologies tothe world’s major industries –transportation, construction,fabrication, petro-chemical andothers. The company designs andmanufactures arc welding products,robotic welding systems, plasma andoxyfuel cutting equipment for use withsteel, stainless, aluminum, and alloysintended for almost any application.

The best known and most completewelding resource in the world, LincolnElectric is uniquely positioned tocombine the design and manufactureof both arc welding equipment andconsumables with the intense study ofarc dynamics … and share theknowledge gained to assist customerswith application expertise. Lincoln isthe only welding company in the worldthat can and does actively seek toaddress customer needs with a totalwelding process strategy.

Design innovation, local applicationassistance, strategically locateddistribution centers, a global networkof distributor sales and servicefacilities, local manufacturingcapability, stringent world-class qualitycontrol – all are components ofLincoln’s total welding and cuttingprocess strategy designed to addressthe needs of customers workingaround the world.

InnovationTo support our total process strategy,Lincoln makes a significantcommitment to R & D. Ourcomprehensive research anddevelopment program applies inputfrom welding operators, customerwelding managers, distributors andother stakeholders in each solution.Coupled with research in metallurgy,chemistry and applied electronics,these efforts are leading the industry inthe areas of waveform control, digitalcommunication and powerelectronics.

QualityAn emphasis on quality has pervadedLincoln’s corporate culture for over100 years. It is also verified on acontinuing basis by such

organizations as ISO, AWS, CSA,ASME, ABS, NEMA, Lloyd’s Register,Det Norske Veritas, U.S. Departmentof Defense, ASME-Nuclear, BerequVeritas, Germanischer Lloyds andothers. In addition, internal Six Sigmaand Cell of Excellence programs helpto keep the company focused oncontinuous process improvement.

DistributionStarting with operations,manufacturing alliances and jointventures in 19 countries, Lincolnfactories supply product to a numberof distribution centers on every

continent. Our sales/distributionnetwork services more than 160countries to assure product isavailable where and when it is needed.

ServiceWith over 700 authorized servicefacilities around the world stockinggenuine Lincoln replacement parts,you can count on Lincoln to keep youroperations running. Our Service Partsinitiative launched to date in the U.S.helps us fulfill the commitment to shipany of our 15,000 stocked partsanywhere in the country within 24hours of receipt of the order.

Lincoln at a Glance

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LINCOLN ELECTRIC MANUFACTURING

REGIONAL HEADQUARTERS

CLEVELAND, OHIO, U.S.A.

MIAMI, FLORIDA, U.S.A.

BARCELONA, SPAIN

SINGAPORE

TABLE OF CONTENTSWelding. It’s Our Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Lincolnweld® Submerged Arc Consumables . . . . . . . . . . . . . . . . . . . . 4Submerged Arc Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6The Total Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Submerged Arc Fluxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Lincolnweld Fluxes for Carbon and High Strength Low Alloy Steels . . . 10Lincolnweld Electrodes for Carbon and High Strength Low Alloy Steels 13Conformances, Certifications & Approvals . . . . . . . . . . . . . . . . . . . . . . 15Selecting Flux-Wire Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

High Speed Sheet Metal Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Single Pass Welds on Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Multiple Pass Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Maximum Voltage for Multiple Pass Welds Chart . . . . . . . . . . . . . 24

Lincolnweld Fluxes and Electrodes for Low Alloy Steels . . . . . . . . . . . . 25Flux Selection for Hardfacing or Stainless Steel Applications . . . . . . . . 26Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

ExpertiseIt is a known fact in the weldingindustry – Lincoln places moretechnical expertise locally in the fieldthan any other major supplier. Thisteam is supported by a host ofwelding technology applicationengineers, technicians, servicepersonnel and development groupsnetworked around the world.

The Lincoln Electric Company –dedicated to serving customers andhelping them achieve their goals –whenever and wherever those needsarise.

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Controlled Chemistry for WireElectrodes and FluxLincoln has long had a strongcommitment to chemical analysis anda variety of process control methodsto ensure the chemical compositionconsistency of our wire electrodes andfluxes. Each incoming coil of wire ischecked for the correct level of 19different chemical elements. Each mixof ingredients for flux processing issimilarly checked.

Our use of Six Sigma® processanalysis and other statistical processcontrols as well as repeated self-examination of our processes andsystems means you benefit. Ourcommitment to this task means youcan count on consistent weldproperties from lot to lot, coil to coil,bag to bag.

Consistent Wire ElectrodeDiameterDuring wire drawing production,Lincoln manufacturing teams closelymonitor wire electrode diameter toensure that diameter is well withinAWS or other agency requirements.In fact, our own tolerances are tighterthan those specified by the relevantthird party agencies.

How does inconsistent wire diameteraffect your welding operations?Varying electrode diameter results in potential feeding problems,inconsistent arc behavior andinconsistent weld bead appearance.In response, operators tend to begin

varying procedures, resulting in losttime, lost productivity and highercosts.

Controlled Flux Grain SizeConsistency in Lincolnweld grain, orparticle, size is a paramount concernof Lincoln R & D and manufacturingteams. Why? By maintainingstringent controls over the size of thegrain, we more reliably deliver asmooth flux flow through flux deliverysystems, provide more consistent andless explosive arc action and improvebead appearance.

Controlled Dust LevelsGreat care is taken to test and refineour flux formulas to reduce the level ofdust generated when handlingLincolnweld flux. Your operators willappreciate the cleaner environmentand your shop housekeeping crewswill appreciate the reduced workloadcompared to fluxes that generategreater amounts of dust.

Engineered Particle IntegrityThose fabricators using flux recoverysystems will appreciate the grainstrength, known as particle integrity,designed into Lincolnweld submergedarc fluxes. The highly engineeredgrain composition is designed to resistbreakdown during the harsh, jarringjourney through typical flux recoverysystems. The result is flux that is trulyrecoverable to be used again andagain – and high recovery efficiencyrates will reduce your overall costs.

LINCOLNWELD®

Submerged Arc Consumables

Complete Submerged ArcSolutions You Can TrustBy partnering with a single,comprehensive welding resource,fabricators, pipe mills andconstruction firms find they canimprove efficiencies and maintainstronger accountability.

For many of the world’s leading usersof submerged arc welding equipmentand consumables, Lincoln Electric hasbecome that single-source weldingpartner. Why? Because Lincolnoffers an exceptional array of well-designed and well-built submergedarc welding products, as well as awealth of welding expertise andexperience.

Behind those products and thatexpertise is Lincoln’s unique totalprocess engineering approach towelding. It means that everysubmerged arc consumable has beendesigned to work in harmony with allother Lincoln Electric submerged arcproducts – Lincoln wire feeders,power sources, semiautomatic guns,and hard automation systems havebeen engineered with an eye onreliable, efficient welding systemperformance.

That translates to less downtime,improved production rates and higherprofit potential on every submergedarc project or assembly line.

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ADVANTAGELINCOLNProductivity, Weld Quality,Operator Comfort

Combining over fifty years ofexperience with our full line of fluxes,the Lincoln Electric Company is yourbest source for the products andtechnical service required forsuccessful application of submergedarc welding.

How it Works

CROSS-SECTIONAL VIEW OF ARC WELDINGUNDER A BLANKET OF WELDING FLUX... THE

SUBMERGED ARC PROCESS

The arc melts the electrode, the basemetal and flux into a common pool.The molten flux acts as a cleansingagent and floats to the top of the weldto form a protective slag while theweld solidifies.

Exceptional ProductivityEqual Strength Fillets

Submerged Arc Stick Electrode

NOTE DIFFERENCE IN PENETRATION

Equal Strength Butts

Submerged Arc

Stick Electrode

NOTE NO PLATE PREPARATIONNEEDED FOR SUB-ARC

Deposit Rates to Over 100 lbs/hr:With high current handling capability –up to 600 amps on a single 3/32” wireand over 5000 amps in multiple arcinstallations – submerged arc weldingfeatures outstanding “Fast-Fill”characteristics. The process depositslarge volumes of high quality weldmetal for low cost welding over a widerange of applications.

High Operating Factor: Especially onlong, large welds, multipass round-abouts and overlay applications,submerged arc welding can approacha 100% operating factor, sometimesfor an hour or more. Even with shortsemiautomatic welds, operators canoften double the arc on-time overstick electrode welding.

Minimum Finishing Time: The ripple-free, no spatter submerged arc weldsseldom need matching or grinding.Slag peels off with little or no chipping.Easy cleaning minimizes labor costsand speeds production.

Fast Travel Speeds: Outstandinghigh travel speed characteristics makesubmerged arc a profitable processfor single pass welding of sheet steeland plate. Maximum practical travelspeeds approach 200 ipm inTwinarc® installations.

Deep Penetration: The ability topenetrate into the joint minimizes theamount of weld metal required for fullstrength and frequently reduces jointpreparation costs.

Unbeatable Weld Quality

Meet Code Specs: Using standardprocedures, submerged arc weldseasily meet code requirementsincluding stringent radiographic,ultrasonic and other testingprocedures.

The ability to consistently producesound welds of “code quality” haslong been a major reason for the wideacceptance of submerged arcwelding.

Welds Stronger than the Plate: Thecarefully controlled ingredients insubmerged arc fluxes and electrodes,combined with the protecting andcleaning action in the weld puddle,produce refined weld metal withvirtually no porosity or inclusions. Thefinished welds usually have bettermechanical properties than the plate.

Low Hydrogen: Submerged arcdeposits are low in hydrogen; featureexcellent crack resistance andgenerally superior weld quality.

Minimize Error: Machine control ofwelding parameters and arcplacement eliminates numerouschances for operator error; improvesweld quality and consistency.

Easy Reproducibility: Once the weldprocedure is properly set, submergedarc welds of the same size and qualitycan be made over and over efficientlyand quickly.

Built-in Operator Comfort

Submerged arc welding providesmore operator comfort than any otherarc welding process. The granular fluxalmost completely covers the arc,which minimizes flash, glare, heat,smoke, and fumes.

Operators weld without cumbersomehelmets and heavy gloves. They aremore comfortable and work longerwith better accuracy and less fatigue.

Other employees and sensitiveequipment are automatically shieldedfrom welding flash and glare.Protective walls or curtains are notnecessary.

Virtual elimination of smoke and fumeskeeps the submerged arc work stationand general plant air cleaner withoutexpensive extractors or ventilationsystems. (Some additional pre-cautions may be required in confined

or restrictive places.) Even the arcsound is muffled under the flux bedand adds little to the general noiselevel of the shop.

The emphasis in recent years on cleanair and operator comfort has inspiredfresh recognition of the inherentenvironmental control advantages ofthe submerged arc process.

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One Wire / One Head

The most common method used forsingle and multiple pass welds.

Two Wires / One Head

Used for high-speed single pass,overlay and high deposition

applications.

Two, Three, Four, Five Wires and Heads

Usually deposits a DC lead and ACtrail arcs. Used for high deposition and large high travel speed joints.

WIDE APPLICATION RANGE

Semiautomatic

Operator control provides maximum flexibility.

Automatic

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THE TOTALSOLUTION Lincoln’s full line of wire feeders andpower sources feature thecharacteristics required for maximumproductivity and weld quality invirtually all submerged arc weldingapplications. The versatile, ruggedequipment is designed for long lifewith minimum maintenance in yourmost demanding locations. Requestproduct bulletins listed in parentheses( ) for complete information.

Versatile. Rugged. Designed for your needs.

Self-Propelled Tractors

LT-7 (E9.70)

LT-56 (E9.80)

Power Sources

DC-400 (E5.20)

DC-600 (5.40)

DC-655 (E5.46)

DC-1000 (E5.50)

DC-1500 (E5.60)

AC-1200 (E5.70)

Wire Feeders

AutomaticNA-5 (E9.30)

NA-3 (E9.10)

NA-4 (E9.10)

Semiautomatic

LN-9 (E8.40)

LN-8 (E8.30)

LN-7 (E8.10)

SUBMERGEDARC FLUXES The Lincoln Electric Companymanufactures three general types ofsubmerged arc fluxes:

(1) active fluxes, (2) neutral fluxes, and (3) alloy fluxes.

With all submerged arc fluxes,variations in arc voltage change fluxconsumption. Higher arc voltages andthe resulting longer arc length increasethe amount of flux melted orconsumed. Consequently, when a fluxcontains an alloy as an ingredient,increasing the arc voltage increasesthe amount of alloy recovered in theweld deposit.

Types and GeneralCharacteristics

Active Fluxes

Lincoln defines active fluxes as thosewhich contain controlled amounts ofmanganese and/or silicon. Thesealloys are added as ingredients in theflux to provide improved resistance toporosity and weld cracking caused bycontaminants on the plate or in theplate composition itself.

The primary use for active fluxes is tomake single pass welds with thefewest defects and highest quality.

Note the following considerationsconcerning active fluxes: 1. Since active fluxes do contain

some alloy as ingredients, the alloyin the weld deposit will vary withchanges in the arc voltage. Anincrease in deposit alloy increasesthe strength level of the weld metalin multiple pass welds but mightlower the impact properties. Forthis reason, voltage must be moretightly controlled for multiple passwelding with active fluxes thanwhen using neutral fluxes. Becauseof this, Lincoln does not

recommend using active fluxes (our 700 series) for multiple passwelding of plates over 1-inch thick.

2. Some fluxes are more active thanothers. This means they offer moreresistance to a particular type ofproblems in single pass welds thana flux which is less active.

Neutral Fluxes

Lincoln defines neutral fluxes as thosewhich will not produce any significantchange in the all-weld metalcomposition as a result of a largechange in the arc voltage, and thusthe arc length.

The primary use for neutral fluxes is inmultiple pass welding, especially whenthe base plate exceeds 1-inch inthickness.

Note the following considerationsconcerning neutral fluxes:

1. Since neutral fluxes contain little orno active alloy, they have little or noresistance to cracking and/orporosity caused by contaminants,especially on single pass welds.For this reason, neutral fluxes arenot usually the best choice forsingle pass welding.

2. All neutral fluxes do not necessarilyproduce weld metal with goodimpact properties. Good impactproperties depend upon the designof the flux and the electrode andhave little or nothing to do withwhether or not the flux is neutral.

3. While neutral fluxes do maintain thecomposition of the weld depositeven when the voltage is changed,it is not always true that thecomposition of the all-weld metaldeposit is the same as thecomposition of the electrode used.Some neutral fluxes break down inthe heat of the arc and releaseoxygen, resulting in a lower carbonvalue in the weld deposit than the

carbon content of the electrode itself. Some neutral fluxes contain manganese silicate which can break down in the heat of the arc to add some metallic manganese or silicon to the deposit.These changes in the composition of the deposit are fairly consistent even when there are large changes in voltage.

4. Even when a neutral flux is used tomaintain the weld metalcomposition through a range ofwelding voltage, weld properties,such as strength level and impactproperties, can change because ofchanges in other weldingparameters such as penetration,heat input and number of passes.

Alloy Fluxes

Lincoln defines alloy fluxes as thosewhich are used with a plain carbonsteel electrode to make alloy welddeposit. The alloys for the welddeposit are added as ingredients influx.

The primary uses for alloy fluxes are toweld alloy steels and for hardfacing.

Note the following considerationsconcerning alloy fluxes:

1. Since the alloy level in the welddeposit is dependent upon thecorrect arc voltage, and thus arclength, it is very important that themanufacturer’s recommendedvoltage be followed very carefullyto ensure that the intended alloy isreached in the deposit.

2. Alloy fluxes generally reducewelding costs by permitting the useof plain carbon steel electroderather than an expensive alloy wire.

3. Alloy fluxes are versatile.Depending on the application, thealloy in the weld deposit may bealtered simply by changing thevoltage.

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LINCOLNWELD®

FLUXES For Welding Carbon andHigh Strength Low AlloySteels

Lincoln manufacturers onlyAgglomerated™ fluxes to provide thewelding characteristics you need foreach application. Agglomerated fluxesblend the evenly mixed raw materialsinto flux particles of consistentcomposition without causing chemicalchanges. This manufacturing methodpermits inclusion of chemically activeingredients for control of porosity,addition of alloy to the deposit whendesired, and general improvement ofweld quality.

The Lincoln Electric Company’s activefluxes are in the 700 series. Theneutral fluxes are the 800/900 series.The alloy fluxes A-XXX-10 and ST-100are discussed in later sections of thisbrochure.

700 Series Active Fluxes

760… 760 is recommended forapplications where porosity caused byarc blow is a problem. In addition, itproduces excellent appearance on flatfillet welds when using a constantvoltage power source.

761… weld deposits are usually lowcarbon, fairly high manganese, havesuperior crack-resistance and, whenused with L-61 electrode, produceexcellent impact resistance on singlepass welds. The slower freezing of761 slag gives good appearance onlarge flat fillet welds using eitherconstant or variable voltage powersources.

780… has excellent performancecharacteristics, including very goodslag removal, making it the mostcommon choice for a variety ofapplications. The faster freezing of780 slag minimizes spilling onroundabouts. Low flash-through withexcellent bead shape and slagremoval make 780/L-60 second onlyto 980/L-50 for semiautomaticwelding.

781… is recommended for makinghigh speed, single pass welds onclean plate and sheet steel. The good“wetting” action provides the “Fast-Follow” characteristics needed tomake uniform welds at high speedwithout undercut or voids. 781 shouldnot be used for welding steelcontaminated with rust, oil or millscale.

800 Series Neutral Fluxes

MIL 800*… is a highly basic neutralflux recommended for use with solidmild steel and low alloy steelelectrodes. It can be used to obtainexcellent mechanical properties,including low temperature impacts.This includes the welding of HY-80steel with LA-100 electrode. MIL 800is designed for both single andmultiple arc procedures and isqualified as MIL-100S-IF perMIL-E- 23765/2D (SH). It is notrecommended as a high speedgeneral purpose or horizontal filletwelding flux for carbon steel. Usingelectrodes containing less than 0.20%silicon with MIL 800 may result innarrow beads, poor appearance,increased pocking and porosity.

860… has excellent operatingcharacteristics and produces goodimpact properties when used with L-60 or L-61 electrodes. 860/L-70 &860/LA-71 deposits produce 70,000psi tensile strength after stressrelieving. 860 is the recommended fluxfor most double ending applications.

865… is a general purpose fluxdesigned to weld butt joints and flatand horizontal fillets. 865 produces70,000 psi tensile strength as weldedor after short or long term stress relief.865 flux should be used with L-50electrode for optimum impactproperties, resistance to rust porosity,and resistance to pockmarking. L-61may be used on steel free of scaleand rust.

880… is recommended for weldingwith solid low alloy steel electrodes.These electrodes must contain aminimum of 0.20% silicon for properdeoxidation and bead appearance.880 flux is also used with Lincoln’sLAC series of low alloy flux-coredelectrodes, with Lincore® 30-S, 35-S,40-S and 50 flux-cored hardfacingelectrodes. 880 flux should not beused for single arc AC welding or as ageneral purpose flux for applicationssuch as fillets welding of carbon steel.

NOTE: Lincoln’s 700 series Active Fluxes are primarily recommended for single pass welds. Theymay also be used with L-60 electrode for multiple pass welding on plate 1" thick. See “MaximumVoltage for Multiple Pass Welds” on page 22.

* THESE FLUXES ARE NOT SIZED FOR SEMIAUTOMATIC APPLICATIONS. SEE YOUR LOCALLINCOLN REPRE-SENTATIVE FOR PRICING IF THE APPLICATION REQUIRES SPECIALSIZING APPLICABLE TO SEMIAUTOMATIC WELDING.

880M*… is recommended for weldingwith solid carbon steel and low alloysteel electrodes, with Lincoln’s LACseries of low alloy flux-coredelectrode. It is the best choice forsingle arc AC welding . 880M isdesigned to produce the excellentmechanical properties, includingCTOD’s and low temperature impacts,required on many applications. Thisincludes the welding of HY-80 steelwith Lincolnweld LA-100 electrode.For applications requiring 70,000 psitensile strength in the stress relievedcondition, 880M is NOTrecommended as a high speed orgeneral purpose welding flux forapplications such as the fillet weldingof carbon steel. Using electrodescontaining less than 0.20% siliconwith 880M may result in narrowbeads, poor appearance, increasedpocking and porosity.

882… is recommended for weldingwith solid carbon and low alloy steelelectrodes. It may be used withelectrodes containing low silicon.When used with L-61 electrode itproduces deposits with a minimum of70,000 psi tensile strength in the aswelded condition and excellent lowtemperature impacts.

MIL800-H*… can be used to obtainexcellent mechanical propertiesincluding low temperature impacts,and very low levels of diffusiblehydrogen. The typical level of diffusiblehydrogen is less than 2ml/100 gramsof weld metal deposited. This includesthe welding of HY-80 and HSLA-80steel with LA-100 and MC-100electrodes and the welding of HY-100

and HSLA-100 steel with MC-120S-55 electrode. MIL800-H is qualified toMIL-E-23765/2D (Amd. 1) as aMIL-100S-2F flux when used withLA-100 electrode and as a MIL-100S-2CF flux when used with MC-100electrode. MIL800-H is recommendedfor both single and multiple electrodewelding. MIL800-H can also be usedto weld horizontal and flat fillets.Welding procedures with ML-800-Hrequire 2-3 volts less than other “800”neutral fluxes.

MIL800-HPNi… flux is designed to beused with LA-85 (ENi5) electrode, andincreases the nickel content of theweld deposit from a nominal 1% to aminimum of 1% nickel. MIL800-HPNiis used to weld high performancesteels such as HPS70W having aminimum yield strength of 70,000 psi.These steels are primarily found inbridge girder manufacturing. MIL800HPNi also provides higher depositionrates than standard fluxes and is moreresistant to moisture pickup than othertraditional highly basic fluxes andmeets an H2(2 ml of hydrogen/100grams of weld metal) AWS diffusiblehydrogen designation.

8500*… is recommended for multipass welding with solid mild steel andlow alloy electrodes. 8500 flux can beused to obtain excellent mechanicalproperties, including low temperatureimpacts and CTOD’s 8500 flux isrecommended for both single andmultiple electrode welding. 8500 fluxis not recommended as a generalpurpose or horizontal fillet welding fluxfor carbon steel.

8500 flux may be used with L-61,L-S3 and LA-85 to meet therequirements of many applicationsrequiring excellent low temperatureCharpy impacts. This includes thefabrication of offshore drillingplatforms. LA-85 provides the higheryield strength required on the newerplatform designs. 8500 may also beused on AC applications.

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NOTE: Lincoln’s 800 series Neutral Fluxes are designed primarily for multiple pass welding. Lincolnweld 860-865 may be used on some single passapplications. See “selecting Flux Wire Combinations”.

* THESE FLUXES ARE NOT SIZED FOR SEMIAUTOMATIC APPLICATIONS. SEE YOUR LOCAL LINCOLN REPRE-SENTATIVE FOR PRICING IF THEAPPLICATION REQUIRES SPECIAL SIZING APPLICABLE TO SEMIAUTOMATIC WELDING.

NOTE: Since square butt welding can result in up to 60% dilution, the weld metal chemistry attained is greatly dependent upon the base platechemistry. Properties may also vary depending upon welding procedures and cooling rate. Test welding with production plate and procedures mustbe performed to determine actual conformance to required properties. In applications where hydrogen embrittlement is a factor, such as petroleumstorage and handling facilities, checking weld hardness is also recommend.

The Lincoln Electric Company strongly recommends that, for weldments intended for sour gas, sour crude or other critical service applications, thecustomer verify that both the level of hardness and variation of hardness of the weld, heat affected zone and the base plate are within acceptablelimits.

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900 Series Special PurposeNeutral Fluxes

960… is a low cost, general purposeflux designed to weld butt joints andboth single and multiple pass fillets. Itcan be used for automatic and semi-automatic welding. It produces weldswith good impact strength and goodslag removal. 960 Flux is designed tomeet AASHTO Fracture CriticalRequirements.

The 960/L-61 flux/electrodecombination can be used on mostfillet welding applications as well asmost butt welding applications withunlimited plate thickness. Whereheavy scale or rust is a problem,960/L-50 should be used. For stressrelieved properties, 960/LA-71 shouldbe used. Where weathering steel is tobe welded, 960/LA-75 should beused.

960’s ability to perform well on a widevariety of welding applications makes960 particularly suitable for customerswho are currently stocking separatefluxes for butt welding and filletwelding applications.

980… combines many of the featuresof the 700 and 800 series fluxes,making it an excellent choice forfabricators who desire one flux forautomatic and semiautomatic weldingthroughout the shop. It is intendedprimarily for welding plain carbon(mild) steel. Exceptional resistance toflash-through and porosity caused byarc blow makes it the best choice forsemi-automatic welding. When usedwith L-50 or LC-72 electrodes, 980exhibits outstanding single passwelding characteristics. It is neutral,providing limited alloy buildup inmultiple pass welds at high voltageseven on plate 1” thick.

900 Series Fluxes DesignedSpecifically for Fabricationof Line Pipe

995*… is recommended for singlepass, square butt welding such aslongitudinal and spiral seams on pipe.Do not use on pipe containing lessthan 0.20% silicon. It is designed foruse with Lincoln L-70 electrode, andintended foe single or multiple arcprocedures (up to five). 995 is capableof high speed longitudinal seamwelding over a range of line pipesteels up to 1-3/4”. On applicationsrequiring more than one pass, an“800” series flux is recommended forbetter multiple pass impact strength.995 is not intended for generalpurpose welding or for sheet metal.

995N*… is recommended for singlepass, square butt welding such aslongitudinal and spiral seams on pipegreater than 1/2” in thickness. Forpipe 1/2” and less, 997 Flux is therecommended flux, In particular, 995Nflux is recommended with LA-81electrode for applications requiring aminimum of 50 ft. lbs. impact strength@ -50°F (-46°C).

For applications where impactrequirements requirements are 30 ft.lbs @ -20°F (-29°C), 995N or 995fluxes with L-70 electrode are therecommended combinations. Also,where impact strength is not required,995N or 995 fluxes can be used withL-61 electrode.

995N flux produces welds withminimal buildup and good penetration,which makes 995N particularly suitedfor high speed longitudinal seamwelding of pipe. 995N flux can also beused for spiral seam welding. It can beon single arc applications or onmultiple arc applications with up to 5

welding arcs. On applicationsrequiring more passes, an “800”series flux is recommended for bettermultiple pass impact strength.

997… is a special flux intended forsquare butt welding; longitudinal andspiral seam welding of pipe up to 1”thick. It is designed for square buttwelding applications requiring onepass per side, such as seam welds onpipe. Typically, L-61 should be usedwith 997. However, where impactrequirements are specified, L-70should be used.

P223… is an excellent choice for pipeproduction on a wide range of steelgrades. P223 is designed to deliveroutstanding welding performance withmost wire compositions. Select P223for single or multiple wire systems in atwo-run, or single pass each sidesystem. Due to dilution of 60-70percent with the parent metal, in atwo-run (single pass each side)procedure, the chemical compositionof the base material has a significantinfluence on the mechanicalproperties.

* THESE FLUXES ARE NOT SIZED FOR SEMIAUTOMATIC APPLICATIONS. SEE YOUR LOCAL LINCOLN REPRE-SENTATIVE FOR PRICING IF THEAPPLICATION REQUIRES SPECIAL SIZING APPLICABLE TO SEMIAUTOMATIC WELDING.

NOTE : Since square butt welding can result in up to 60% dilution, the weld metal chemistry attained is greatly dependent upon the base plate chemistry. Properties may also vary depending upon welding procedures and cooling rate. Test welding with procedures and cooling rate. Test welding with production plate and procedures must be performed to determine actual conformance to require properties. In applications where hydrogen embrittlement is a factor, such as petroleum storage and handling facilities, checking weld hardness is also recommended.

The Lincoln Electric Company strongly recommends that, for weldments intended for sour gas, sour crude or other critical service applications, thecustomer verify that both the level of hardness and variation of hardness of the weld, heat affected zone and the base plate are within acceptable limits.

For Welding Carbon and High Strength Low Alloy Steels

AWS Classification numbers forelectrodes do not specify the resultsobtained when used with a particular flux(see AWS A5.17-19 and A5.23-97). Theclassification of an electrode should onlybe used as a guide to determine whetheran electrode is suitable for a specificapplication.

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LINCOLNWELD® ELECTRODES

Carbon Steel Electrodes (Chemistry)

Carbon Steel Electrodes (Sizes Available)

LINCOLN ELECTRODE CLASSIFICATIONS As Required Per AWS A5.17-97

AWS/ AWS Wire Composition Limits(1)

ASMEWire Class %C %Mn %Si %Cr %Ni %Mo %Ti %Zr %Al %V %S %B %P

L-50 EM13K .06-.16 .90-1.40 .35-.75 --- --- --- --- --- --- --- .030 --- .030

L-56 EH11K .06-.15 1.40-1.85 .80-1.15 --- --- --- --- --- --- --- .030 --- .030

L-60 EL12 .04-.14 .25-.60 .10 --- --- --- --- --- --- --- .030 --- .030

L-61 EM12K .05-.15 .80-1.25 .10-.35 --- --- --- --- --- --- --- .030 --- .030

LA-71 EM14K .06-.19 .90-1.40 .35-.75 --- --- --- .03-.17 . --- --- --- .025 --- .025

LC-72 (2,3) EC1 .15 1.80 .90 --- --- --- --- --- --- --- .035 --- .035

L-S3 EH12K .06-.15 1.50-2.00 .20-.65 --- --- --- --- --- --- --- .025 --- .025

(1) Single values are maximums.(2) LC-72 is a flux-cored electrode.(3) Limits are for weld metal deposited with a particular flux.

(1) Smaller sizes are available and also meet conformances for gas-shielded processes.(2) Made to order.

FOR SUBMERGED ARC WELDING(1)

Wire 1/16” 5/64” 3/32” 1/8” 5/32” 3/16” 7/32”

L-50(1) ✓ ✓ ✓ ✓ ✓ ✓

L-56(1) ✓ ✓ ✓ ✓ ✓ ✓ (2)

L-60 ✓ (2) ✓ ✓ ✓ ✓ ✓ ✓

L-61 ✓ ✓ ✓ ✓ ✓ ✓

LA-71 ✓ (2) ✓ ✓ ✓

LC-72 ✓ ✓

L-S3 ✓ ✓ ✓ (2)

14

Low Alloy Wire Electrodes (Chemistry)

Low Alloy Wire Electrodes (Sizes Available)

LINCOLN ELECTRODE CLASSIFICATIONS As Required Per AWS A5.23-97

AWS/ AWS Wire Composition Limits(1)

ASMEWire Class %C %Mn %Si %Cr %Ni %Mo %Ti %Zr %Al %V %S %B %P %Cu

L-70 EA1 .05-.15 .65-1.00 .20 --- --- .45-.65 --- --- --- --- .025 --- .025 .35

LA-75 ENi1K .12 .80-1.40 .40-.80 --- .75-1.25 --- --- --- --- --- .020 --- .020 .35

LA-82 EF2 .10-.18 1.70-2.40 .20 --- .40-.80 .40-.65 --- --- --- --- .025 --- .025 .35

LA-85 ENi5 .12 1.20-1.60 .05-.30 --- .75-1.25 .10-.30 --- --- --- --- .020 --- .020 .35

LA-90 EA3K .05-.15 1.60-2.10 .50-.80 --- --- .40-.60 --- --- --- --- .025 --- .025 .35

LA-92 EB2 .07-.15 .45-1.00 .05-.30 1.00-1.75 --- .45-.65 --- --- --- ---- .025 --- .025 .35

LA-93 EB3 .05-.15 .40-.80 .05-.30 2.25-3.00 --- .90-1.10 --- --- --- --- .025 --- .025 .35

LA-100 EM2 .10 1.25-1.80 .20-.60 .30 1.40-2.10 .25-.55 .10 .10 .10 .05 .015 --- .010 .25

(1) Single values are maximums.

(1) Smaller sizes are available and also meet conformances for gas-shielded processes.(2) Made to order.

FOR SUBMERGED ARC WELDING(1)

Wire 1/16” 5/64” 3/32” 1/8” 5/32” 3/16” 7/32”

L-70 ✓ ✓ ✓ ✓

LA-75(1) ✓ ✓ ✓ ✓

LA-82 ✓ ✓ ✓

LA-85 ✓ ✓ ✓ ✓

LA-90(1) ✓ ✓ ✓ ✓ ✓ (2)

LA-92 ✓ ✓ ✓

LA-93 ✓ ✓ ✓

LA-100(1) ✓ ✓ ✓ ✓ ✓ (2)

AWS-ASME ClassificationSystem

The number illustrated abovedesignates a flux which, when usedwith an EM12K electrode, producesall weld metal deposits of 70-95,000psi tensile, 58,000 psi minimum yield,22% elongation in 2-inches and 20 ft.lbs. @ -20°F (-29°C) impacts and thedeposited weld metal meets a Ni1composition when welded and testedin accordance with AWS A5.23-97.

AWS classification numbers do notindicate whether a flux and electrodecombination is neutral or active; fluxselection should not be based uponthis issue. However, flux selection

should be based upon the detailedinformation found in this brochurewhich covers flux descriptions, fluxand electrode combinations, and fluxperformance characteristics.

In situations where it is necessary todetermine whether a flux andelectrode combination is neutral oractive, the Wall Neutrality Number is aconvenient relative measure. The WallNeutrality Number addresses carbonsteel weld metals with regard to theirmanganese and silicon content. Itdoes not address alloy fluxes. For anelectrode-flux combination to beconsidered neutral, it should have aWall Neutrality Number of 40 or less.

Consult AWS specification A5.17-97or A5.23-97 for information ondetermining Wall Neutrality Numbers.

Flux/Wire Conformance Testing

Lincoln flux/wire combinations meetthe AWS-ASME conformances listedin the following tables when tested inaccordance with AWS specificationsA5.17-97 or A5.23-97 as appropriate.To duplicate the tests, follow the AWStest specifications exactly. For moreinformation, please contact your localLincoln Representative.

15

LINCOLN FLUX-ELECTRODECONFORMANCES

For Welding Carbon andHigh Strength Low AlloySteels

DesignatesSubmerged

Arc Flux

MechanicalProperties

Weld HeatTreatmentCondition

MinimumImpact

ElectrodeConformanceClassification

DepositConformance

EXAMPLE: F 7 A 2 - EM12K- Ni1

6 - 60-80,000 tensile48,000 min. yield22% elong. in 2"




10 - 100-120,000 tensile88,000 min. yield16% elong in 2"

A - As Welded

P - Post Weld HeatTreated

20 ft. lbs. @0 - 0°F2 - -20°F4 - -40°F5 - - 50°F6 - -60°F8 - -80°F

10 - -100°FZ - no

Requirement

16

AWS / ASMEFlux / Electrode Classification

760 / L-50(1) F7A0-EM13K

760 / L-60 F6A2-EL12

760 / L-61(1) F7A2-EM12K

761 / L-50(1) F7A0-EM13K-H8

761 / L-60 F7A2-EL12

761 / L-61(1) F7A2-EM12K-H8

780 / L-60 F7A0-EL12

780 / L-61(1) F7A2-EM12K

781 / L-50(1) F7A0-EM13K

781 / L-60 F7A0-EL12

781 / L-61(1) F7A0-EM12K

860 / L-50 F7A2-EM13K-H8

860 / L-60 F6A2-EL12-H8

860 / L-61 F7A4-EM12K-H8

860 / LA-71 F7A2-EM14K-H8

860 / LA-71 (SR) F7P2-EM14K-H8

860 / L-S3 F7A2-EH12K

865 / L-50 F7A2-EM13K

865 / L-50 (SR) F7P5-EM13K

865 / L-61 F7A2-EM12K

865 / L-61 (SR) F7P2-EM12K

865 / LA-71 F7A2-EM14K

880 / LA-71 F7A4-EM14K-H8

880 / LA-71 (SR) F7P4-EM14K-H8

882 / L-50 F7A6-EM13K-H8

882 / L-56 F7A4-EH11K-H8

882 / L-56 (SR) F7P5-EH11K-H8

882 / L-60 F6A6-EL12-H8

882 / L-61 F7A6-EM12K-H8

882 / L-S3 F7A6-EH12K-H8

882 / L-S3 (SR) F7P6-EH12K-H8

882 / LA-71 F7A4-EM14K-H8


882 / LA-71 (SR) F7P6-EM14K-H8

880M / L-50 F7A6-EM13K-H8

880M / L-56 F7A6-EH11K-H8

880M / L-56 (SR) F7P6-EH11K-H8

880M / LA-71 F7A6-EM14K-H8

880M / LA-71 (SR) F7A6-EM14K-H8

880M / L-S3 F7A6-EH12K-H8

MIL800 / L-50 F7A6-EM13K-H8

MIL800 / L-56 F7A6-EH11K-H8

MIL800 / L-56 (SR) F7P6-EH11K-H8

MIL800 / LA-71 F7A6-EM14K-H8

MIL800 / LA-71 (SR) F7P6-EM14K-H8

MIL800 / L-S3 F7A6-EH12K-H8

MIL800-H / LA-71 F7A6-EM14K-H2

MIL800-H / LA-71 (SR) F7P6-EM14K-H2

MIL800-H / L-S3 F7A6-EH12K-H2

MIL800-H / L-S3 (SR) F7P6-EH12K-H2

960 / L-50 F7A2-EM13K-H8

960 / L-61 F7A2-EM12K-H8

960 / LA-71 F7A2-EM14K-H8

960 / LA-71 (SR) F7P2-EM14K-H8

980 / L-50 F7A2-EM13K-H8

980 / L-61 F7A2-EM12K-H8

980 / LC-72 F7A2-EC1-H8

994 / L-61 F6A2-EM12K

995 / L-61 F7A2-EM12K

997 / L-61 F7A0-EM12K

8500 / L-S3 F7A6-EH12K-H8

8500 / L-S3 (SR) F7P6-EH12K-H8

8500 / L-61 F7A6-EM12K-H8

P223 / L-61 F7A4-EM12K

Lincoln Flux-Electrode Certifications (Carbon Steel)

As Required Per AWS A5.17-97

(1) Limited to 3 passes.

17


761 / L-70(1) F9A0-EA1-G781 / L-70(1) F9A0-EA1-G860 / L-70 F7A2-EA1-A2-H8860 / L-70 (SR) F7P2-EA1-A2-H8860 / LA-75 F7A2-ENi1K-Ni1-H8860 / LA-75 (SR) F7P2-ENi1K-Ni1-H8860 / LA-85 F8A4-ENi5-Ni5-H8865 / LA-75 F8A2-ENi1K-G865 / LA-75 (SR) F8P2-ENi1K-G880 / LA-75 F7A6-ENi1K-Ni1-H8880 / LA-90 F9A4-EA3K-A4-H8880 / LA-90 (SR) F8P4-EA3K-A4-H8880 / LA-100 F9A4-EM2-M2-H8880 / LAC-B2 (SR) F9P2-ECB2-B2-H8880 / LAC-M2 F11A6-ECM2-M2-H8880 / LAC-Ni2 F7A6-ECNi2-Ni2-H8880 / LAC-Ni2 (SR) F7P10-ECNi2-Ni2-H8880M / LA-75 F7A6-ENi1K-Ni1-H8880M / LA-85 F7A6-ENi5-Ni5-H8880M / LA-85 (SR) F7P6-ENi5-Ni5-H8880M / LA-90 F9A6-EA3K-A3-H8880M / LA-90 (SR) F8P6-EA3K-A3-H8880M / LA-93 (SR) F7P0-EB3-B3-H8880M / LA-92 (SR) F7P2-EB2-B2-H8880M / LA-100 F9A6-EM2-M2-H8880M / LAC-B2 (SR) F8P2-ECB2-B2-H8880M / LAC-M2 F11A6-ECM2-M2-H8880M / LAC-M2 (SR) F11P6-ECM2-M2-H8880M / LAC-Ni2 F7A10-ECNi2-Ni2-H8880M / LAC-Ni2 (SR) F7P10-ECNi2-Ni2-H8882 / L-70 (SR) F7P4-EA1-A2-H8882 / LA-75 F7A4-ENi1K-Ni1-H8882 / LA-82 F10A6-EF2-F2-H8882 / LA-82 (SR) F9P6-EF2-F2-H8882 / LA-85 F7A4-ENi5-Ni5-H8882 / LA-85 (SR) F7P4-ENi5-Ni5-H8882 / LA-93 (SR) F9P0-EB3-B3-H8882 / LA-92 (SR) F7P2-EB2-B2-H8882 / LAC-Ni2 F8A4-ECNi2-Ni2-H8882 / LAC-Ni2 (SR) F8P4-ECNi2-Ni2-H8MIL800 / LA-75 F7A6-ENi1K-Ni1-H8

Lincoln Flux-Electrode Certifications (Low Alloy Steel)As Required Per AWS A5.23-97


MIL800 / LA-90 F9A6-EA3K-A3-H8MIL800 / LA-90 (SR) F8P6-EA3K-A3-H8MIL800 / LA-100 F9A6-EM2-M2-H8MIL800 / LAC-B2 (SR) F8P2-ECB2-B2-H8MIL800 / LAC-M2 F11A6-ECM2-M2-H8MIL800 / LAC-Ni2 F8A10-ECNi2-Ni2-H8MIL800 / LAC-Ni2 (SR) F7P10-ECNi2-Ni2-H8MIL800-H / LA-75 F7A6-ENi1K-Ni1-H2MIL800-H / LA-82 F10A6-EF2-F2-H2MIL800-H / LA-82 (SR) F10P6-EF2-F2-H2MIL800-H / LA-85 F9A4-ENi5-G-H2MIL800-H / LA-85 (SR) F8P6-ENi5-Ni5-H2MIL800-H / LA-90 F9A6-EA3K-A3-H2MIL800-H / LA-90 (SR) F9P6-EA3K-A3-H2MIL800-H / LA-92 (SR) F8P2-EB2-B2-H2MIL800-H / LA-93 (SR) F9P0-EB3-B3-H2MIL800-H / LA-100 F10A6-EM2-M2-H2960 / LA-75 F8A2-ENi1K-Ni1-H8960 / LA-75 (SR) F7P6-ENi1K-Ni1-H8960 / LA-85 F8A2-ENi5-G-H8960 / LA-85 (SR) F7P5-ENi5-G-H8960 / LA-92 (SR) F8PZ-EB2-G-H8960 / LA-93 F9P0-EB3-G-H8960 / LA-100 F10A4-EM2-G-H8995 / L-70 F8A2-EA1-A4995 / LA-90 F10A2-EA3K-G995N / LA-81(1) F9A2-EG-G995N / LA-90 F9A2-EA3K-G980 / LA-75 F7A2-ENi1K-Ni1-H8980 / LAC-Ni2 F8A2-ECNi2-Ni2-H8994 / LA-90 F8A0-EA3K-A2997 / L-70 F8A0-EA1-G997 / LA-81 F9AZ-EG-GAXXX10 / L-61 F7A4-EM12K-Ni1-H88500 / LA-90 F9A2-EA3K-A3-H88500 / LA-92 F8P0-EB2-B2-H88500 / LA-82 P9A6-EF2-F2-H88500 / LA-82 (SR) F9P6-EF2-F2-H88500 / LA-85 F7A6-ENi5-Ni5-H88500 / LA-85 (SR) F7P6-ENi5-Ni5-H8P223 / L-70 F8A2-EA1-A2

(1) Limited to 3 passes.

18

Flux / Electrode ABS ABS Lloyd’s DNV Germanischer BureauCombination (AWS Classification) Grade Grade Grade Lloyd Veritas

760 / L-60 F6A2-EL12 --- --- --- --- ---761 / L-60 F7A2-EL12 --- --- --- --- ---761 / L-61 F7A2-EM12K --- 3M-3YM IIIYM 3 YM A3YM761 / L-70 --- 3YM --- IIIYTM --- ---

761 / L-70 (Triple Tandem) --- 3YT --- IIIYT --- ---780 / L-60 F7A0-EL12 --- 2M-2YM --- --- ---780 / L-61 F7A2-EM12K --- 2M-2YM IIYTM 2YTM A2YTM780 / L-70 --- --- 2YM --- --- ---781 / L-50 F7A0-EM13K --- --- --- --- ---781 / L-61 F7A0-EM12K --- --- --- --- ---860 / L-60 F6A2-EL12 --- --- --- --- ---860 / L-61 F7A2-EM12K --- 3M-3YM IIIYM, II YT 3YM, 2YT A3YM, A2YT

880M / L-50 --- 3M-3YM 3M-3YM VYM --- ---880M / L-56 --- 3M-3YM 3M-3YM (same as above) --- ---882 / L-61 F7A6-EM12K --- --- --- --- ---

880 / LAC-M2 F11A6-ECM2-M2 --- --- --- --- ---880 / LAC-Ni2 (SR) F7P10-ECNi2-Ni2 --- --- --- --- ---

960 / L-50 F7A2-EM13K --- --- --- --- ---960 / L-61 F7A2-EM12K --- --- --- --- ---8500 / L-61 --- 4M-4YM 4YMH10 IV YM 4YM ---8500 / L-S3 --- 4M-4YM 4YMH10 IV YM 4YM ---

8500 / LA-81 (LNS 140TB) --- --- --- IV YT 4YT ---8500 / LA-85 (LNS 165) --- 4YM 4YMH10 IV YM 4YM --

8500 / LA-90 F9A2-EA3K-A3 --- --- --- --- ---STAINLESS:

Blue Max S308/308L ER308/ER308L --- --- --- --- ---Blue Max S309/309L ER309/ER309L --- --- --- --- ---Blue Max S316/316L ER316/ER316L --- --- --- --- ---

Lincoln Flux-Electrode Certifications (Low Alloy Steel)

As Required Per AWS A5.23-97

19

Product MIL Specification Classification

L-50 Electrode* MIL-E-23765/1D & 1E Type MIL-70S-3

L-56 Electrode* MIL-E-23765/1D & 1E Type MIL-70S-6

L-60 Electrode MIL-E-18193B(1) Type MIL-A1

L-61 Electrode MIL-E-18193B(1) Type MIL-B1

L-70 Electrode MIL-E-18193B(1) Type MIL-A2

LA-100 Electrode* MIL-E-23765/2D and /2E Type MIL-100S-1

or MIL-100S-2 (with MIL800-H)

MC-100 Electrode* MIL-E-23765/2D Type MIL-100S-2C

MIL800 Flux* MIL-E-23765/2D Type MIL-100S-1F

MIL800 Flux* MIL-E-23765/1E Type MIL-70S-6F

MIL800-H Flux* MIL-E-23765/2D and /2E Type MIL-100S-2F and MIL-100S-2CF

860 Flux MIL-F-18251C(1) Type MIL-F3


880M Flux MIL-F-18251C(1) Type MIL-F4

880M Flux* MIL-E-23765/2C and /2D Type MIL-100S-1F


980 Flux MIL-E-23765/1E Type MIL-70S-3F

Military Qualified Products

NOTE: Lot inspection is required with each order. The products listed with an ( * ) are listed on a products list (QPL).

(1) MIL-E-18193B and MIL-F-18251C were cancelled by NAVSEA on September 15, 1989. Future contracts should be written using MIL-E-23765/4, as shown below.

MIL Specification MIL-E-23765/4

Product Classification Type

761/L-61 MIL-F7A2-EM12K

780/L-60 MIL-F7A0-EL12

780/L-61 MIL-F7A2-EM12K

860/L-60 MIL-F6A2-EL12

860/L-61 MIL-F7A2-EM12K

860/L-70 MIL-F7A2-EA1-A2

960/L-61 MIL-F7A2-EM12K

L-60 MIL-EL12

L-61 MIL-EM12K

L-70 MIL-EA1

20

For Welding Carbon and HighStrength Low Alloy Steels

Selecting the proper fillercombinations for submerged arcwelding is slightly more complicatedthan for other processes becausethere are two distinct components:flux and electrode. Both flux andelectrode determine mechanicalproperties. To simplify the selectionprocess, the following procedure maybe used:

Step 1Review certified combinations.

Step 2When multiple options are offered,determine the performance andproperty requirements. Review the bargraphs on the following pages, asappropriate, to determine which fluxbest meets these criteria.

Step 3Review the flux descriptions to confirmthe actual welding criteria is beingmet.

Step 4Before making the final selection,review the list of “SpecialApplications”. These specialcategories may dictate alternatematerials.

Finally, remember the serviceability ofa product or structure utilizing thesesuggested combinations is and mustbe the sole responsibility of thebuilder/user. Many variables beyondthe control of The Lincoln ElectricCompany affect the results obtained inapplying this type of information.These variables include, but are notlimited to, welding procedure, platecomposition and temperature,weldment design, fabrication methodsand service requirements.

SELECTING FLUX-WIRECOMBINATIONS

WARNING:The Lincoln Electric Company has

tested and recommends thesubmerged arc flux and electrode

combinations listed in thisbrochure for the applicationsdescribed. The use of Lincoln

Electric flux or electrode with otherproducts is not recommended and

must be tested by the user todetermine acceptability.

Best Cracking Resistance Single Pass 761/L-61Multiple Pass 860/L-61

AASHTO FCM or D1.5 Single Pass 960/L-61Qualifications Multiple Pass 960/L-61

860/L-61

Best Backing Flux 761/L-61

Stress Relieved Applications 882/LA-71 860/L-7070,000 psi Tensile Required 8500/L-S3 860/LA-71

8500/LA-85

CTOD Requirements As Welded 880M/L-50 or8500/L-S3

Stress Relieved 880M/L-56 or880M/LA-718500/L-S3 or8500/LA-85

Low Hardness on Cover Pass 180 avg. BHN 860/L-60200 avg. BHN 860/L-61

ASME Pressure Vessel Single Pass 780/L-60Manganese Limit Multiple Pass 880M/LA-71

860/LA-71882/L-61

Structural – Weathering Steels 960/LA-75AXXX10/L-61

Low Hydrogen Applications on MIL800-H/LA-100on HY80, HSLA-80

Low Hydrogen Applications MIL800HP-Ni/LA-85HPS 70W

Special Applications

NOTE: Use L-50 or L-61. NOTE: Resistance to rust porosity improveswith higher silicon (L-50 and L-61) electrodes.

NOTE: Resistance to organic porosity best withL-60 electrode.

21

NOTE: Resistance to cracking onsingle pass welds improves withhigher manganese (L-61)electrodes. DC(-) also desirable.

NOTE: Resistance to rustporosity improves with highersilicon (L-50 and L-61) electrodes.

NOTE: Resistance to organicporosity best with L-60 electrode.

High Speed Sheet Metal Welds

Butt welds on gauge metal to 1/4"thick steel and small fillet weldsthrough 3/16" leg size.

Single Pass Welds on Plate

Butt welds on 5/16" and thicker steeland 1/4" and larger fillets.

Best for High SpeedWelding on Clean Sheet

Steel (to 1/4")

Best Welding on Rustyor Scaly Sheet Steel

Best Resistance toPorosity Due to Organic

(Oil) Contaminants

781

761

760

780

980

860

960

761

760

780

781

980

860

960

761

760

980

780

860

960

781


(Oil) Contaminants

761

760

780

980

865

Best Resistance toCracking on Single Pass Applications

761

760

980

780

860


(Oil) Contaminants

760

761

780

865

980

22

Single Pass Welds on Plate(Continued)

NOTE: The flux, electrode,welding procedure, base platecomposition and post weld heator mechanical treatment are allessential factors in the final weldhardness. Therefore,conformance to weld hardnesslimitations can only be determinedon test welds duplicating theactual application.

NOTE: Resistance to arc blowporosity best with L-60 electrode.DC(+) is recommended overDC(-). AC is recommended forsevere arc blow applications andfor weld joints thicker than 3".

Best FlatFillet Welding

761

760

760

980

Best Resistance toPockmarking

Best Single Arc HighSpeed Welding on

Plate (5/16" and Thicker)

760

761

780

980

865

Best Slag Removalon Horizontal Fillets

Best Choice for LowWeld Hardness –

Single Pass (With L-61)

760

761

980

865

780

Best Resistance toPorosity Due to

Arc Blow

760

761

980

865

780

Lowest FluxConsumption

760

761

865

780

980

Best AC and MultipleArc Welding

761

780

980

865

760

Least Spillageon Roundabouts

865

780

980

760

761

760

761

780

980

865

960

Best Resistance toFlash-Through

(Semiautomatic Welding)

980

960

780

865

760

761

865

780

980

960

761

760

Multiple Pass Welds

Neutral fluxes resist silicon andmanganese buildup in succeedingpasses.

23

Best Resistance toMulti-Pass High Voltage

or Restraint Cracking

860

882

880M

MIL

800

8500

980

960

865

Best AC Operation(Including Tandem)

880M

MIL

800

8500

860

980

865

960

882

Least Spillage onRoundabouts

865

980

880M

MIL

800

882

8500

860

960

Lowest FluxConsumption

880M

MIL

800

882

8500

865

860

960

980

Best Resistance toArc Blow

(Nitrogen) Porosity

880M

MIL

800

8500

980

865

860

960

882

Best Multiple PassSemiautomatic

Welding

980

865

860

960

882

Best Deep GrooveSlag Removal

980

865

960

860

8500

880M

MIL

800

882

Best Resistance toMulti-Pass High Voltage

or Restraint Cracking

882/

L-61

860/

L-60

860/

L-61

980/

L-61

882/

L-50

980/

L-50

860/

L-50

880M

/L-5

0

MIL

800

/L-5

0

960/

L-61

865/

L-61

960/

L-50

865/

L-50

42

40

38

36

34

32

30

28

26

24

22

20

Max

imum

Vo

ltag

e (V

olts

)

200 300 400 500 600 700 800 900 1000Current (Amps)

5/64"3/32" 1/8" 5/32"

3/16" (1)

7/32" (1

)●

●

24

Note: The “800 Series” fluxes are recommended for multiple pass welding of plate over 1" thick. Formultiple pass welding with a “700 Series” flux, use L-60 electrode and limit voltage per the “MaximumVoltage for Multiple Pass Weld” chart above.

Maximum Voltage for Multiple Pass Welds

Voltage must be limited to prevent silicon and manganese built-up to prevent weld cracking and high cover pass hardness.

Note: Check meter accuracy periodically. The above chart is for welds made with 700 series fluxes,L-60 electrode, DC(+) polarity and 1-1/2" electrical stickout. When welding on DC(-), increase aboverecommended maximum voltage by 4 volts.

(1) Maximum voltage for 781 flux.

For Welding Low Alloy Steels

Lincolnweld Alloy Flux

Lincolnweld alloy fluxes are activefluxes which are used with solidcarbon steel electrodes to make lowalloy deposits. The alloys for thedeposits are included as ingredients inthe flux.

Advantages: the required alloy iseasily blended into the flux duringmanufacturing, permitting use of aninexpensive carbon steel electrode,usually L-61. As a result, the materialcost for welding the low alloy steelswith an alloy flux is substantially lessthan the cost of a special alloy wirewith a neutral flux.

In addition, alloy fluxes are versatile.The alloy in the weld deposit can bealtered by simply changing thewelding arc voltage.

NOTE: Since the alloy level in thedeposit depends upon the arcvoltage, and thus the arc length,always use the arc voltagerecommended by Lincoln to maintainthe intended alloy content in the weld.

Alloy Flux: AXXX10, when used withL-61 electrode, produces a Ni1deposit for welding ASTM A533-Class1 and A588 (weathering) steel. Thecombination conforms to F7A4-EM12K-Ni1 when welded and testedin accordance with AWS A5.23-90.

Lincolnweld LAC Electrodes

LAC electrodes are low alloy flux-cored electrodes designed for usewith Lincolnweld 880, 880M, 882 and980 neutral fluxes to make specificlow alloy weld deposits.

The alloys to produce these depositsare included in the core of the tubularelectrodes.

Advantages: Usable deposit ratesusing LAC electrodes are up to 50%higher than those obtained with solidsubmerged arc welding electrodes.

They provide excellent resistance toweld cracking along with lowerpenetration and admixture especiallywhen using extended stickoutprocedures. In addition, LACelectrodes can be used to provideincreased deposition rates over thoseobtained with solid electrodes withoutincreasing the heat input. This isbecause LAC electrodes have ahigher deposition rate for a givencurrent than do solid electrodes.

This is especially important in weldingcertain low alloy or quenched andtempered steels that exhibit adeterioration of the properties of theHAZ with increasing heat input.

LAC Electrodes – Available in 3/32"and 5/32" diameters.

• LAC-Ni2 is designed to weld A588(weathering) steel, 2-1/2% Ni steels,3-1/2% Ni steels, and other steelsrequiring 70,000 psi tensile strength(as welded or stress relieved) andexcellent low temperature impactproperties.

• LAC-M2 is designed to weld T1and similar steels requiring 100,000psi yield strength (as welded orstress relieved) and 15 ft. lbs.minimum Charpy impacts @ -50°F(-46°C).

• LAC-B2 is designed for weldingchromium-molybdenum steelshaving 1-1/4% Cr-1/2% Mo or less.

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LINCOLNWELD FLUXESAND ELECTRODES

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HardfacingLincore hardfacing flux-coredelectrodes and Lincolnweld hardfacingfluxes produce the special alloysneeded for most hardfacing jobs.Frequently one flux or electrode doesall the work of several alloy electrodes.This versatility minimizes inventory andhelps maintain consistent qualitythrough repeated experience usingthe same material. For moreinformation on Lincoln’s Sub-ArcHardfacing Consumables, requestbulletin C7.10.

Sub-Arc Tubular Wires &Neutral Flux (Rc )Buildup Lincore 8620/801

(16-20)Lincore 4130/801

(17-21)Lincore 20/801

(23-28)Lincore 30-S/801

(29-32)Lincore 35-S/801

(35-40)Lincore 32-S/801

(28-32)Lincore 15CrMn/801

(18-22)

Metal- Lincore 40-S/801to-Metal (39-42)

Lincore 102W/802(48-54)

Lincore 102HC/802(50-56)

Lincore T&D/802(48-65)

Lincore 410/801(27-32)

Lincore 410NiMo/801(32-40)

Lincore 420/801(46-50)

Lincore 40-S/801(39-42)

Lincore 96S/801(48-54)

Lincore 424A/801(36-42)

Lincore 423L/801(41-47)

Lincore 423Cr/802(41-47)

Abrasion Lincore 50/801(48-65)

Fluxes for Welding StainlessSteels• ST-100 is an alloy flux for use with

solid stainless steel wire electrodes.It contains chromium to helpcompensate for the chromium inthe electrode that is oxidized in thearc and, therefore, not recovered inthe weld deposit.

• 801, 802, 880, 880M and 882 areneutral fluxes designed for weldingwith solid stainless steel electrodes.The use of these fluxes with solidelectrodes containing over 35%total alloy content may result inpoor bead shape and slag sticking.

801 – For best bead shape inhorizontal fillets and smalldiameter circumferential welds.

802 – For clean slag removal withER347 wire.

860 – To reduce weld deposit ferrite(slag removal is poorer with 860flux than with other fluxesmentioned here).

880 – For lowest flux cost and cleanslag removal with mostcommon stainless steels.

880M – For best AC operation.

882 – For brightest surfaceappearance with most commonaustenitic stainless steels.

• Blue Max 2000 is a neutral fluxdesigned for welding the moredifficult stainless steels such as 347and 2205, as well as nickel basealloys. Designed for maximumtoughness and ductility with duplexstainless steels. For maximumcrack resistance with fully austeniticstainless steels.

• Blue Max 3000 is a chromiumalloyed flux for strip cladding whereat least 4FN ferrite is desired with309L strip on carbon steel in onelayer.

• Blue Max 4000 is a neutral fluxdesigned for cladding using theelectroslag welding process withstainless steel and nickel basedstrip electrodes.

• 860 is a neutral flux that can beused with Blue Max S308/308Lelectrode for applications requiringa lower ferrite number. Thiscombination, however, will producea tighter slag with surface slagsticking.

Electrodes• Blue Max S308/308L is a solid

stainless steel electrode containingabout 20% chromium and 10%nickel used for fabricating 304,304L, and similar stainless steels.

• Blue Max S309/309L is a solidstainless steel electrode containingabout 24% chromium and 13%nickel for higher alloy requirements,dissimilar metal joining, andcladding carbon steel.

• Blue Max S316/316L is a solidstainless steel electrode containingabout 18% chromium, 12% nickel,and over 2% molybdenum, forjoining 316 and 316L.

Available Blue Max Sizes

5/64", 3/32", 1/8" and 5/32" Diameters

Welding Stainless SteelBlue Max S308/308L, S309/309L,and S316/316L electrodes, with anyof several Lincolnweld fluxes, produceoutstanding results in joining commonaustenitic stainless steels. In addition,Blue Max S309/309L can be used forcladding and dissimilar metal joiningwhen procedures are followed thatlimit dilution.

The choice of flux depends largelyupon the ferrite level desired in thedeposit. Lower ferrite helps preventembrittlement at high operatingtemperatures. Higher ferrite reducesweld cracking tendencies.

TypicalElectrode / Flux Ferrite No.

Blue Max S308/308L / ST-100 13-16Blue Max S308/308L / 880 8-10Blue Max S308/308L / 880M 8-10Blue Max S308/308L / 860 4-7

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Lincolnweld® LAC and Lincore®

Solid Wires Flux-Cored WiresCoil Weight 60 lbs (27 kg) 50 lbs (23 kg)Coil Size = O.D. 16-1/2 in. 16-1/2 in.

(419 mm) Max. (419 mm) Max.

I.D. 11-7/8 in. 11-7/8 in.(302 mm) (302 mm)

Width 4-5/8 in. 4-5/8 in.(117 mm) (117 mm)

Coils/Pallet (1) 54 60Packaging 1/16 in. (2 mm) and smaller diameters

packed in plastic bags. All packed inside water-repellent cartons.

PACKAGINGSpeed-Feed® Drums

For many electrode types and sizes.300 lb (136 kg), 600 lb (272 kg) and1,000 lb (454 kg) drums are available.The drum dimensions are 34 in. (864mm) high, 23 in. (584 mm) I.D. and 16in. (406 mm) core O.D. for 600 lb (272kg) or 1,000 lb (454 kg) drums. The300 lb (136 kg) drums are 17 in. (432kg) high by 23 in. (584 mm) I.D. and13 in. (330 mm) core O.D. All drumsare palletized for shipping. A turntableis recommended for proper feeding.Reusable hats which fit inside thedrum core for kink-free uncoiling are anecessary accessory. Product numberis ED020219.

Flux Bags and Cartons

Flux is shipped in 50 lb (23 kg)moisture repellent bags. For addedprotection, fluxes may be ordered in50 lb (23 kg) hermetically sealedplastic pails. Standard pallets(1)

contain 32 bags or cartons. 50 lb foil bags and 2,700 or 3,000 lb bulkbags are also available with certainfluxes.

(1) Each pallet contains only one typeand size of electrode or flux.Electrode pallets are 47" x 31-1/2"(1193 mm x 800 mm). Flux palletsare 42" x 42" (1067 mm x 1067mm). Pallets are not supplied formixed assortments. Pallets can bestacked 2-high (maximum).

Standard Electrode Coils

Speed-Feed® Reels

750 lb (340 kg) and 1,000 lb (454 kg)reels of many electrode sizes andtypes are wound onto standard AWSreels. Appropriate uncoilingequipment is required to horizontallyrotate the reel for proper feeding. Allreels are palletized for shipping.

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WARNING:The Lincoln Electric Company has tested and recommends the submerged arc flux and electrode combinations

listed in this brochure for the applications described. The use of Lincoln Electric flux or electrode with other products is not recommended and must be tested by the user to determine acceptability.

TEST RESULTS

Test results for mechanical properties, deposit or electrode composition and diffusible hydrogen levels were obtained from a weld produced and tested according to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.

CUSTOMER ASSISTANCE POLICY

The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables,and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. Onoccasion, purchasers may ask Lincoln Electric for advice or information about their use of our products. We respond to our customers based on the best information in our possession at that time. Lincoln Electric is not in a position to warrantor guarantee such advice, and assumes no liability, with respect to such information or advice. We expressly disclaim anywarranty of any kind, including any warranty of fitness for any customer’s particular purpose, with respect to suchinformation or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating orcorrecting any such information or advice once it has been given, nor does the provision of information or advice create,expand or alter any warranty with respect to the sale of our products.

Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solelywithin the control of, and remains the sole responsibility of the customer. Many variables beyond the control of LincolnElectric affect the results obtained in applying these types of fabrication methods and service requirements.

Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer towww.lincolnelectric.com for any updated information.

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Notes

30

Notes

31

Notes

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Submerged ArcC5.10 5/03

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