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OK Tigrod 347Si

OK Tigrod 347Si

Bare, corrosion-resistant, chromium-nickel rods for welding austenitic chromium nickel alloys of the 18% Cr-8% Ni type. OK Tigrod 347Si 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 the niobium content, this alloy is recommended for use at higher temperatures.

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Typical Tensile Properties

As welded
Elongation Tensile Strength Yield Strength
35 % 640 MPa 440 MPa

Charpy V-Notch Properties

As welded
Impact Value Testing Temperature
90 J 20 °C
75 J -60 °C

Weld Metal Analysis

MnMoCuCNbSiFerrite FNNiCr
1.7 %0.1 %0.10 %0.04 %0.60 %0.7 %7 %9.8 %19 %

Approvals: NAKS/HAKC; 1.6MM-2.4MM; VdTÜV; 09736
Classifications: EN ISO 14343-A; W 19 9 Nb Si; Wire Electrode; SFA/AWS A5.9; ER347Si; Wire Electrode; Werkstoffnummer; ~1.4551; Wire Electrode

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

Alloy Type: Austenitic (with approx. 8 % ferrite) 19% Cr - 9% Ni - Nb