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ESAB

OK Autrod 318Si

OK Autrod 318Si

A continuous, solid, corrosion-resistant, stabilised, chromium-nickel-molybdenum wire for welding Cr-Ni-Mo and Cr-Ni stabilised or non-stabilised steels. OK Autrod 318Si has good general corrosion resistance. The alloy is stabilised with niobium to improve resistance to the intergranular corrosion of the weld metal. The higher silicon content improves the welding properties such as wetting. Due to stabilisation by niobium, this alloy is recommended for service temperatures up to 400ºC.

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Specifications


Typical Tensile Properties

As welded
Elongation Tensile Strength Yield Strength
35 % 89 ksi 67 ksi
Tested at 400°C (752°F). As welded
Elongation Tensile Strength Yield Strength
35 % 70 ksi 52 ksi

Typical Charpy V-Notch Properties

As welded
Impact Value Testing Temperature
74 ft-lb 68 °F
52 ft-lb -76 °F

Typical Weld Metal Analysis %

MnMoCuCNbSiFerrite FNNiCr
1.7 %2.60 %0.10 %0.05 %0.50 %0.8 %6 %11.9 %18.8 %

Approvals: CE, EN 13479, DB, 43.039.14, NAKS/HAKC, 1.2MM, VdTÜV, 09735
Classifications: EN ISO 14343-A, G 19 12 3 Nb Si, Wire Electrode, Werkstoffnummer, ~1.4576, Wire Electrode

Approvals are based on factory location. Please contact ESAB for more information.


Alloy Type: Austenitic (with approx. 7 % ferrite) 19% Cr - 12% Ni - 3 % Mo - Nb
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