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WSG A 31

TIG welding rods for creep resisting steel

Quality WSG A 31
Classification DIN EN ISO 21952-A W Z4Mo, 636-B W 57A 4 W4M31
Material No. -
Classification AWS A5.28 ER80S-D2, A5.28 ER90S-D2
Approvals CE
Characteristics and application TIG/GTAW rod for welding of high strength steels, used predominantly after stress relieving. Predominantly used for welding high strength steels, providing a good combination of strength and toughness. May find use for joining creep resistance steels up to ~500°C but the WSG Mo wire would be the more usual choice.
Base materials For a wide range of engineering steels with a yield strength up to 540MPa (78ksi) and UTS up to 620MPa (90ksi).
S355NL-S460NL, S55ML-S460ML, S460QL-S550QL, P235GH-P355GH, 16Mo3
ASTM: A487 grades 2A/B/C
AISI: 4130
Typical analysis in %
C: 0,09
Si: 0,70
Mn: 1,95
Mo: 0,50
Yield strength in Mpa ≥ 540
Tensile strength in Mpa ≥ 620
Elongation in % 4d/5d: ≥17
Charpy-V-Value (ISO-V) in J RT ≥ 100
-40°C ≥ 47
Typical heat treatment Welding procedure, including preheat temperature, interpass temperature and PWHT, will be dependent on the base material being welded and any applicable design codes.
Other products MIG/GMAW: ED-A 31
TIG/GTAW: WSG Mo