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Wire/flux combinations for Submerged Arc welding
Selection Criteria
Single-pass welding
Applications:
circular and longitudinal welding of gas cylinders,
water heater or fire extinguisher bodies, tanks, downhand welding.
Thicknesses: between 2 and 5 mm on steel grades E24 to E355.
Recommended wire/flux combinations:
AS
26/AS 55, AS
26/AS 50, AS
26/AS 231, AS
35/AS 450,
AS 70S/AS 450.
Two-pass welding
Applications: large pressure vessels, tube, structural steelwork, shipbuilding, circular and longitudinal welds of large storage tanks, boiler vessel, butt-welding of panels.
Thicknesses:
between 5 and 20 mm on steel grades E-28-4 to E355 FP.
Recommended wire/flux combinations:
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Rm >= 410 N/mm²
Mn <= 1%
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Rm >= 470 N/mm²
1% <= Mn <= 1.3%
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Rm >= 510 N/mm²
Mn > 1.3%
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0° C
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- 20° C
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- 40° C
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- 60° C
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Fillet welding
Applications: welding of beams (PRS), frames for special machines, longitudinal members for trucks, overhead cranes ...
Recommended wire/flux combinations:
AS
26/AS 231M, AS
70S/AS 231M,
AS
35/AS 450, (AS 70S recommended in case of dirty plates),
AS
35/AS 462.
Multipass welding
Applications: large pressure vessels, off-shore pipework, nuclear.
Thicknesses: Larger than 20 mm on steel grades E28-4 to E355 FP.
Recommended wire/flux combinations:
AS WELDED
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Rm <= 620 N/mm2
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Rm <= 700 N/mm2
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- 20° C
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- 40° C
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**combination valid at -60° C
AFTER HEAT TREATMENT
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500 < Rm < 620
en MPa
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620 < Rm < 700
en MPa
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KCV - 20° C
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KCV - 40° C
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KCV - 40° C
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580 - 600°C
1 à 3 h
Vrf >=50° C/h
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690°C / 8h
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Stainless steel welding
Applications: stainless steel construction and boiler making.
Recommended wire/flux combinations:
Steels Z2CN 18.10 to Z12CN 17.07:
ASNC/CN100
Steels Z2CNS 17.12 to Z6CND 17.12: ASNCMO/CN100
Steels Z15CN 24.1: ASNCNIF/CN100
DUPLEX steels: LEXAL
S2293N/F500
