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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 % 615 MPa 460 MPa
Tested at 400°C. As welded
Elongation Tensile Strength Yield Strength
35 % 480 MPa 360 MPa

Charpy V-Notch Properties

As welded
Impact Value Testing Temperature
100 J 20 °C
70 J -60 °C

Weld Metal Analysis

ELEMENTVALUES
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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