Metrode Products Limited Technical Profile Arc Profile.pdf · Metrode Products Limited Technical...

Metrode Products Limited

Technical Profile

Metrode Products Limited

Hanworth Lane, Chertsey, Surrey, KT16 9LL, UK

Tel: +44(0)1932 566721

Fax: +44(0)1932 565168

Email: [email protected]

Issued – September 2012

Issue 2 September 2012

Submerged Arc Welding

Austenitic Stainless Steels

Contents

Page

1. Introduction 1

2. Filler Materials 2

3. Mechanical Properties 5

4. Joint Configuration 5

5. Welding Parameters 6

Appendix 1 - Data Sheets

Appendix 2 - Weld Procedure Records

© Metrode Products Ltd Page 1 Issue 2 September 2012

Submerged Arc Welding

Austenitic Stainless Steels

1. Introduction

Submerged arc welding (SAW) can be effectively applied to the fabrication of austenitic stainless steels, combining fast deposition of high quality weld metal with mechanised process efficiency. SAW is a highly productive alternative for joint filling on:

- circumferential or longitudinal seams which can be welded in the flat position (ASME, 1G; BS EN, PA)

- pipework or vessels in excess of approximately 200mm (8in) diameter, which can be rotated.

- material in excess of approximately 15mm (0.6in) thickness

SAW is conventionally utilised for joint filling on top of initial root welds made using the TIG/GTAW and MMA/SMAW processes, the latter principally for additional deposit

thickening up to 10-12mm (0.4-0.5in) to avoid ‘burn-through’ and/or single-side weld underbead thermal damage. For plate, or large diameter vessels with access from both sides, a double sided SAW procedure can be used, with back grinding or gouging, which

overcomes the need for TIG/MMA root runs.


2. Filler Materials

Data sheets for wire and fluxes can be found in the Metrode Technical Handbook, or on the

Metrode website (www.metrode.com).

2.1 Wires

Suitable wires are available for all of the standard austenitic stainless steels:

Metrode Designation

AWS A5.9 BS EN 14343-A BS EN 14343-B

308S92 ER308L S 19 9 L SS308L

308S96 ER308H S 19 9 H SS308H

347S96 ER347 S 19 9 Nb SS347

316S92 ER316L S 19 12 3 L SS316L

316S96 ER316H S 19 12 3 H SS316H

309S92 ER309L S 23 12 L SS309L

2.2 Flux

There are four fluxes relevant to the welding of austenitic stainless steels:

Metrode Designation

EN ISO 14174 BI Description

SS300 SA AF 64 AC 1.6 Basic, agglomerated

SSB SA AF 2 DC 2.2 Basic, agglomerated

LA491 SA FB 255 AC 2.7 Fluoride – basic, agglomerated

L2N SF CS 2 DC 1.3 Neutral, calcium – silicate, fused


2.2.1

SS300

SS300 is a basic non-alloying agglomerated flux with basicity index of ~1.6. This is a new flux being predominantly used with the standard 300 series stainless steel wires such as

308S92, 316S92 and 309S92. This flux will generally result in a minor loss of Mn (~0.3%) and Cr (~0.3%) and a slight pick-up of Si (~0.15%), see Table 1. SS300 is designed

specifically for the butt welding of stainless steels, where high integrity and good mechanical properties are required. Designed for DC/AC with wires up to 4mm diameter and ~700A. However wires normally are available in 1.6, 2.4 or 3.2mm diameter which

restricts current to a maximum of ~600A.

Table 1: Wire and deposit analysis of austenitic stainless steel wires and SS300 flux

C Mn Si S P Cr Ni Mo Cu

WRC

Ferrite FN

308S92 Wire 0.01 1.7 0.4 0.01 0.015 20 10 - 0.1 10

Deposit 0.02 1.4 0.6 0.01 0.02 19.7 10 - 0.1 10

347S96 Wire 0.03 1.5 0.4 0.005 0.02 19.5 9.7 0.3 8

Deposit 0.03 1.2 0.6 0.01 0.02 19.2 10 - 0.1 8

316S92 Wire 0.01 1.4 0.5 0.01 0.015 18.5 12.8 2.6 0.1 6

Deposit 0.02 1.2 0.6 0.01 0.02 18.2 12 2.6 0.1 6

309S92 Wire .015 1.7 0.5 0.005 0.015 23.5 13 - 0.1 12

Deposit 0.03 1.5 0.6 0.01 0.02 23 12.5 - 0.1 12

2.2.2 SSB

SSB is a basic non-alloying agglomerated flux with basicity index of ~2.2. It is a long

standing Metrode flux and one that has been recommended for use with most stainless steel wires in the past. This flux will generally result in a minor loss of Mn (~0.3%) and Cr

(~0.3%) and a slight pick-up of Si (~0.15%), see Table 2. It is designed specifically for the butt welding of stainless steels, where high integrity and good mechanical properties are required. Designed for DC+ only with wires up to 4mm diameter and ~750A. However

wires normally are available in 1.6, 2.4 or 3.2mm diameter which restricts current to a maximum of ~600A.

With the introduction of the SS300 flux, SSB is now mainly recommended for use with duplex, ER329N, and superduplex, Zeron100X®, wires.

Table 2: Wire and deposit analyses for two batches of 316S92 wire (A & B) and SSB flux

C Mn Si S P Cr Ni Mo Cu WRC

Ferrite, FN

A

Wire 0.014 1.51 0.38 0.014 0.013 18.43 11.60 2.60 0.10 8 Deposit

2.2kJ/mm 0.012 1.19 0.52 0.014 0.014 18.05 11.51 2.62 0.10 8

B

Wire 0.013 1.51 0.44 0.012 0.024 18.22 12.12 2.48 0.15 6 Deposit

1.0kJ/mm 0.010 1.18 0.59 0.012 0.025 17.90 11.98 2.53 0.14 6

Deposit 1.8kJ/mm 0.010 1.20 0.57 0.011 0.025 17.98 11.94 2.48 0.14 6


Deposit

2.7kJ/mm 0.014 1.25 0.55 0.011 0.024 17.79 11.73 2.42 0.14 5

The flux usage allowed for on a weld is normally about1½ times the weight of wire. The actual amount of flux consumed in making a weld is actually less than this and will vary with voltage. Flux consumption for SSB flux on DC+ polarity is shown in the following

graph:

Figure 1: Flux Consumption Using SSB Flux on DC+ Current

25

27

29

31

33

35

37

39

0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2

Flux Consumption, kg flux/kg wire (DC+)

Vo

lta

ge

, V

2.2.3 LA491

The third flux, Metrode LA491, is an agglomerated fluoride-basic flux with a basicity index

of ~2.7 and particle size of 0.2 – 2.0mm. It can be used with most 300 series stainless steels e.g. 308S92, 316S92 and 309S92, and also duplex (ER329N) and superduplex (Zeron 100X®). Though, it is not recommended for stabilised stainless steels (321/347) because

the Ti/Nb affects slag release. Designed for DC+ or AC with wires up to 4mm diameter and ~800A. The LA491 flux also has a secondary use which is for welding with the ER308LCF

and ER316LCF wires for LNG projects and other applications requiring cryogenic properties; further information can be found in the technical profile on LNG. The LA491 flux results in a similar Cr loss to SSB (~0.3%), a slightly lower Si pick-up (~0.10%) and very little Mn loss

(~0.1%). It deposits low diffusible hydrogen containing weld metal making it suitable for thick section joint.

Table 3: Wire and deposit analysis of 316S92 wire and LA491 flux


2.2.4

C Mn Si S P Cr Ni Mo Cu WRC

Ferrite, FN

Wire 0.013 1.54 0.34 0.012 0.011 18.55 11.73 2.59

0.10 9

Deposit 1.3kJ/mm

0.025 1.44 0.48 0.010 0.014 18.10 11.39 2.41

0.10 7

L2N

The final flux, L2N is a neutral, calcium silicate, fused flux with a basicity index of ~1.3. It is the only fused flux in Metrode’s range, which is virtually immune to absorption of moisture

and provides excellent slag release. The flux is specifically designed for welding austenitic stainless steels and shows a Cr loss of ~0.5%, silicon pick-up of ~0.3% and manganese

loss of ~0.35% with a 1%Mn with 316S92 wire. It can be used with DC+, DC- or AC though DC+ operation is preferred. Though it is suitable for single or multi-wire, with a current carrying capacity of 900A, for some alloys and applications smaller wires and lower currents

may be preferable to minimise the risk of hot cracking.

Table 4: Wire and deposit analysis of 308S92 wire and L2N flux

C Mn Si S P Cr Ni Mo Cu

WRC

Ferrite, FN

Wire 0.013 1.84 0.4

1 0.008 0.012 19.95 9.72

0.0

4 0.05 12

Deposit 1.3kJ/mm 0.022 1.41

0.77

0.020 0.030 19.28 9.66 0.07

0.05 12

3. Mechanical Properties

Table 5: Mechanical properties of 316S92 weld deposits with different fluxes

SS300 SSB LA491 L2N

UTS MPa 570 543 563 575

0.2% proof MPa 450 410 402 421

4d Elongation % 41 46.3 48.5 42.5

5d Elongation % 37 41.5 44 38.5

Reduction area % - 72 67 48

Hardness, average HV 215 222 200 245

CVN, average

+20°C J - - - 82

-130°C J >45 46 48 46

4. Joint Configuration

Table 6 details typical joint configurations appropriate to SAW of thicker section material, designed to facilitate root access whilst minimising joint volume and facilitating maximum productivity.


With wall thicknesses up to approximately 20mm (0.8in), conventional single V-joint configurations are recommended, for wall thicknesses above 20mm (0.8in) compound V or U configurations are recommended. With double-sided welding applications, based on twin

V- or U- grooves, fabricators may opt for modified root configurations to dispense with TIG in favour of MMA (or MIG/FCW) for initial weld runs.

With any single-sided joint configurations it is important that sufficient weld thickness is deposited using TIG, MMA MIG or FCW before using SAW to avoid burning through. The actual thickness of weld deposit required in practice will vary depending on the wire

diameter and current to be used for SAW but will normally be a minimum of three runs (one TIG and two MMA for example) producing a deposit thickness of about 10mm.

Table 6: Joint preparations

gf

α

β

t

t (mm)

α β f

(mm) g

(mm)

< 20 70-80° - 0.5-1.5 3-4

> 20

70-80°

20-30°

1-1.5

3-4

α

gf

R

l

t

t (mm)

α R

(mm) l

(mm) f

(mm) g

(mm)

> 20 20-

30° 6-10 0-2

0.5-

1.5 3-4

5. Welding Parameters

The following guidelines are based on typical fabrication experience:

Wire diameter:

2.4mm (3/32in) diameter is the most commonly used size; 1.6mm

(1/16in), 3.2mm (1/8in) and 4mm (5/32in) diameter are also available in some grades.

Welding current: DC+ polarity is normally used; the LA491, L2N & SS300 will also

operate on AC. It is important to select the correct current. A current which is too low produces an unstable arc; as the current is

increased, penetration increases but excessive current can produce undercut or excessive bead reinforcement. Typical currents for different wire diameters are as follows:

Diameter mm

Range A

Typical A

1.6 200 – 350 250

2.4 250 – 450 350

3.2 300 – 500 400

4.0 400 – 600 500


Arc voltage: Careful control is recommended to optimise weld bead geometry (eg depth/width ratio <1) and avoid risk of centreline solidification cracking. As voltage is increased a wider, flatter weld bead is

produced. Typical voltages for different wire diameters are:

Diameter mm

Voltage

1.6 27 – 31

2.4 28 – 32

3.2 29 – 34

4.0 30 – 35

Travel speed: Typically 350-450 mm/min (16-20in/min), though speeds upwards

of 650mm/min (26in/min) may be required to maintain bead shape control with smaller diameter components, eg 150mm (6in)

diameter pipe.

Electrode extension:

20-25mm (0.8-1in); < 20mm (1in) ‘stick-out’ risks loss of effective Joule heating effect and stable metal droplet detachment resulting

in arc instability and uneven, erratic weld beads. > 25mm (1in) leads to excessive resistive heating and imbalance in weld

deposition/penetration relationship.

Flux pile depth: 25-30mm (1-1.2in); < 25mm (1in) risks arc flaring through flux cover, arc/weld pool instability, possible entrainment of air into the

arc cavity and incidence of weld porosity. > 30mm (1.2in) flux pile may inhibit release of gases generated during welding and cause

weld surface porosity or ‘gas flats’.

Electrode angle: 90° for all weld runs, ie no angling in towards sidewall. With circumferential butt joints, wire should be positioned 25-30mm (1-

1.2in) before top centre and angled back along a line intersecting the pipe central axis.

Weld sequence: Weld deposit layers composed of 3 rather than 2 (wider) beads, symptomatic of higher arc voltage, are recommended to avoid risks of solidification cracking.

Flux control: Flux used must be maintained in a reliably dry condition, ideal

storage conditions are <60%RH and >18°C (>65°F). Whilst flux

from freshly opened drums, which have been stored correctly, may

be used without prior baking, it is recommended that all flux be incorporated in a system that routinely re-bakes flux for a minimum

of 1 hour at 250-400°C (450-750°F). Welding with flux hotter than

150°C (300°F) should be avoided to ensure satisfactory operation.

General requirements for flux handling are shown in Figure 2.

Figure 2: Flux handling


New FluxStore in a HeatedHopper at >100°C

50 – 150kg

At end of shift allFlux to be returnedto Heated Hopper

ASub-Arc Machine

Flux Hopper~10kg

B

Sieving

Welding

A or BVacuum

Recycling UnitUnused Flux

With repeated handling and recycling of agglomerated flux,

excessive build-up of fine particles and a shift in grain size balance ultimately leads to deterioration in operating characteristics. To

counter this effect, recycled flux should be routinely diluted with new flux on a 1:1 ratio.

Packaging: Metrode fluxes are supplied in sealed moisture resistant metal

drums with a drum weight 25kg for SS300 and 20kg for LA491, L2N & SSB.


Preheat: Whilst preheat is not normally required, initial weldment

temperatures < 5°C (<40°F) should be avoided and weld surfaces

should be clean and dry. With thick section material, preheating to

temperatures up to 100°C (200°F) may be considered beneficial in

reducing weld solidification rate to assist release of gases generated and further minimise incidence of weld porosity, particularly with

initial SAW weld runs.

Interpass temperature:

This should be measured using a contact pyrometer, at the precise start point of each run. For standard austenitic stainless steels, a

maximum interpass temperature of 250°C (450°F) should be used.

\\metrodefp01\users$\gwj\metrode technical data cd\saw wps.doc

Weld Procedure Record Sub-Arc Weld in 304L Ref: SAW/308L/1

Material SA240 grade 304L Weld Details

Filler Metal Metrode 308S92

Classification AWS A5.9 ER308L

Process SAW Flux SSB

Current DC+ Position 1G

Preheat / Interpass Temperature 10 / 250°C

15mm

70°

5mm

Run No

ø mm

Current Amp

Arc Volts

Travel Speed

mm/min ROL mm

Heat Input

kJ/mm Procedural Comments

1 3.2 440 29 - Approx Deposit runs 1-3 in groove, turn plate and back-

2 3.2 450 30 310 - 1.9 grind, then deposit runs 4 and 5.

3 3.2 470 32 to - to

4 3.2 470 29 470 - 2.5

5 3.2 470 31 -

Analysis C Mn Si S P Cr Ni Mo Cu FN (WRC)

Wire 0.016 1.61 0.39 0.004 0.015 19.7 10.3 0.03 0.04 5

Charpy -196°C Tensile

Side Ferrite Impact J mm Transverse: Bend: (measured): 46 0.67 Weld 47 0.54 591 MPa Pass 5 – 8 FN 41 0.61 598 MPa 120 1.44 X-ray: HAZ 94 1.22 121 1.50 Pass

Hardness PM HAZ Weld Metal HAZ PM

Orig. GBH Date 26.8.99


Weld Procedure Record All-Weld Metal Sub-Arc Weld – 316L Ref: SAW/316L/1

Material All-Weld Test Buttered CMn Weld Details


Classification AWS A5.9 ER316L

Process SAW Flux SSB

Current DC+ Position 1G

Preheat / Interpass Temperature 10 / 250°C

20°

19mm

CMn

316LButtering

Run No

ø mm

Current Amp

Arc Volts

Travel Speed

mm/min ROL mm

Heat Input

kJ/mm Procedural Comments

All 2.4 350 29 280 - ~2.2 Bead sequence – 3 beads per layer

Wire extension – 20mm

Flux depth – 25mm

Analysis C Mn Si S P Cr Ni Mo Cu FN (WRC)

Wire 0.013 1.54 0.34 0.012 0.011 18.6 11.7 2.59 0.10 9

Deposit 0.011 1.17 0.51 0.013 0.021 18.5 11.6 2.48 0.14 9

Charpy -50°C -130°C -196°C Tensile Impact J mm J mm J mm

(All-Weld): Ferrite: 86 1.35 46 0.67 36 0.45 Weld C/L 82 1.29 51 0.69 23 0.30 UTS 574 MPa Measured 83 1.08 41 0.60 30 0.34 proof 498 MPa = 9 FN El (4d) 41% El (5d) 39% Calculated (WRC) RoA 55% = 9 FN




Weld Procedure Record Sub-Arc Weld – 316L Ref: SAW/316L/2

Material SA240 316L Weld Details


Classification AWS A5.9 ER316L BS 2901 pt 2 316S92

Process TIG/MIG/SAW Gas/Flux Note 1

Current DC-/DC+/DC+ Position 1G

Preheat / Interpass Temperature 5 / 150°C 1-4mm0-2.5mm

30-50°

50-70°

20mm

8-10mm

Run No Process ø

mm Current

Amp Arc

Volts Travel Speed

mm/min

Heat Input

kJ/mm Procedural Comments & Notes

1-2 TIG 1.6 80-100 12-14 60 ~1.4 Note 1: TIG – Ar; MIG – Helishield 101;

3-7 MIG 0.9 135 23 300 ~1.2 SAW – SSB flux.

Fill SAW (2) 2.4 315 31 400 ~1.5 Note 2: Wire extension – 20mm;

Cap SAW (2) 2.4 310 30 430 ~1.3 Flux depth – 25mm.

Bead sequence: Split runs started run 4 & 5.

Analysis C Mn Si S P Cr Ni Mo Cu Base metal 0.01 1.20 0.33 0.003 0.030 17.8 11.4 2.28 0.43

Weld (SAW) 0.01 1.36 0.58 0.009 0.020 18.9 11.9 2.69 0.13

Charpy Tensile Ferrite: Impact

WRC Measured Base: 6 FN 0 FN * Weld: 10 FN 7 FN ** * Mid-thickness = 4 FN ** Cap = 9 FN



Rm

MPaRp0.2%

A4

(%)

BS/BS EN/BS EN ISO C Mn Si S P Cr Ni Mo Nb V W B Other MPa MPa % °C J

ER316LCF 14343-A: S 19 12 3 L 0.02 1.40 0.50 0.010 0.015 18.5 12.0 2.5 — — — — — As-welded 570 450 40 -196 50

ER308LCF 14343-A: S 19 9 L 0.02 1.70 0.40 0.010 0.015 20.0 10.0 — — — — — — As-welded 570 450 40 -196 30

Zeron® 100X 14343-A: S 25 9 4 N L 0.02 0.60 0.40 0.010 0.015 24.5 9.3 3.60 — — 0.70 — N:0.21;

Cu:0.7As-welded 890 700 25 -50 40

Rm

MPaRp0.2%

A4

(%)

BS EN / BS EN ISO C Mn Si S P Cr Ni Mo Nb Cu Ti Al Other MPa MPa % °C J

ER16.8.2 14343-A: S 16 8 2 0.05 0.80 0.40 0.010 0.010 16.0 8.5 1.2 — 0.10 — — FN:4 As-welded 630 360 29 -100 30 Also consider SSB flux

308S92 14343-A: S 19 9 L 0.02 1.40 0.60 0.010 0.020 19.7 10.0 — — 0.10 — — FN:8 As-welded 570 425 40 -100 50 Also consider SSB flux

308S96 14343-A: S 19 9 H 0.05 1.60 0.60 0.010 0.020 19.5 9.5 0.1 — 0.10 — — FN:4 As-welded 600 435 40 +20 70 Also consider SSB flux

347S96 14343-A: S 19 9 Nb 0.03 1.20 0.60 0.010 0.020 19.2 10.0 — 0.50 0.10 — — FN:7 As-welded 630 450 35 -75 30 Also consider SSB flux

316S92 14343-A: S 19 12 3 L 0.02 1.20 0.60 0.010 0.020 18.2 12.0 2.6 — 0.10 — — FN:6 As-welded 570 425 40 -100 45 Also consider SSB flux

316S96 14343-A: S 19 12 3 H 0.05 1.50 0.60 0.010 0.020 18.0 13.0 2.2 — 0.15 — — FN:4 As-welded 650 440 35 +20 50 Also consider SSB flux

309S92 14343-A: S 23 12 L 0.03 1.50 0.60 0.010 0.020 23.0 12.5 — — 0.10 — — FN:12 As-welded 600 450 35 -50 60 Also consider LA491 or SSB flux

ER309Mo 14343-A: S 23 12 2 L 0.03 1.50 0.60 0.010 0.020 23.0 12.5 2.3 — 0.10 — — FN:16 As-welded 620 460 32 -50 50 Also consider LA491 or SSB flux

Rm

MPaRp0.2%

A4

(%)

BS EN / BS EN ISO C Mn Si S P Cr Ni Mo Nb Cu Ti Al Other MPa MPa % °C J

ER16.8.2 14343-A: S 16 8 2 0.05 0.80 0.40 0.010 0.010 16.0 8.5 1.2 — 0.10 — — FN:4 As-welded 630 360 29 -196 30 Also consider SS300 flux

308S92 14343-A: S 19 9 L 0.02 1.20 0.60 0.010 0.020 19.7 10.0 — — 0.10 — — FN:8 As-welded 570 450 41 -130 50 Also consider SS300 flux

308S96 14343-A: S 19 9 H 0.05 1.60 0.60 0.010 0.020 19.5 9.5 0.1 — 0.10 — — FN:4 As-welded 600 450 40 +20 80 Also consider SS300 flux

347S96 14343-A: S 19 9 Nb 0.03 1.20 0.60 0.010 0.020 19.2 10.0 — 0.50 0.10 — — FN:7 As-welded 630 470 35 -100 30 Also consider SS300 flux

A5.9: ER308L

(A5.9: ER309LMo)

A5.9: ER316H

A5.9: ER309L

AWS

PWHT

All Weld Metal Mechanical Properties

NoteImpact Energy

A5.9: ER308H

A5.9: ER347

A5.9: ER16-8-2

NoteImpact Energy

A5.9: ER347

A5.9: ER316L

PWHT


A5.9: ER2594

PWHT


A5.9: ER308L

A5.9: ER308H

A5.9: ER16-8-2

AWS

NoteImpact Energy

A5.9: ER316L

A5.9: ER308L

Typical chemical composition of un-diluted weld metal (wt%)LA491 Flux + Wires

AWS

Wire Specification

SS300 Flux + WiresWire Specification Typical chemical composition of un-diluted weld metal (wt%)

SSB Flux + WiresWire Specification Typical chemical composition of un-diluted weld metal (wt%)

F: Fluxes and Wire/Flux Combinations for Submerged Arc Welding

347S96 14343-A: S 19 9 Nb 0.03 1.20 0.60 0.010 0.020 19.2 10.0 — 0.50 0.10 — — FN:7 As-welded 630 470 35 -100 30 Also consider SS300 flux

316S92 14343-A: S 19 12 3 L 0.02 1.20 0.60 0.010 0.020 18.2 12.0 2.6 — 0.10 — — FN:6 As-welded 570 450 41 -196 30 Also consider SS300 flux

316S96 14343-A: S 19 12 3 H 0.05 1.50 0.60 0.010 0.020 18.0 13.0 2.2 — 0.15 — — FN:4 As-welded 650 460 35 +20 70 Also consider SS300 flux

309S92 14343-A: S 23 12 L 0.03 1.50 0.60 0.010 0.020 24.0 12.5 — — 0.10 — — FN:12 As-welded 600 475 35 -50 70 Also consider LA491 or SSB flux

ER309Mo 14343-A: S 23 12 2 L 0.03 1.50 0.60 0.010 0.020 24.0 12.5 2.3 — 0.10 — — FN:16 As-welded 620 480 32 -50 60 Also consider LA491 or SSB flux

ER329N 14343-A: S 22 9 3 N L 0.02 1.30 0.50 0.010 0.020 22.5 8.5 3.1 — 0.10 — — N:0.15 As-welded 790 630 30 -50 55 Also consider LA491 flux

ZERON® 100X 14343-A: S 25 9 4 N L 0.02 0.60 0.40 0.010 0.020 24.5 9.3 3.6 — 0.70 — — N:0.21;

W:0.7As-welded 890 700 25 -50 40 Also consider LA491 flux

Individual data sheets for the above products can be found on the website

A5.9: ER316L

A5.9: ER316H

A5.9: ER309L

(A5.9: ER309LMo)

A5.9: ER2209

A5.9: ER2594

A5.9: ER347

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