OK Tigrod 347Si
Bare corrosion resisting chromium-nickel rods for welding of austenitic chromium nickel alloys of 18 % Cr-8 % Ni-type. OK Tigrod 347Si has a good general corrosion resistance. The alloy is stabilized with Niobium to improve the resistance against 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.
Typical Charpy V-Notch Properties
| as welded | ||||
Typical Tensile Properties
| Condition | Elongation | Tensile Strength | Yield Strength |
| As Welded | 35 % | 640 MPa (93 ksi) | 440 MPa (64 ksi) |
Deposition Data
| Diameter |
| 3.2 mm |
| 2.4 mm |
| 2 mm |
| 4 mm |
| 1.6 mm |
| 1.2 mm |
| 1 mm |
Classifications
| Wire Electrode |
SFA/AWS A5.9 : ER347Si Werkstoffnummer : ~1.4551 EN ISO 14343-A : W 19 9 Nb Si |
Approvals
| Approvals |
NAKS/HAKC 1.6 mm - 2.4 mm VdTÜV 09736 |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Alloy Type | Austenitic (with approx. 8 % ferrite) 19% Cr - 9% Ni - Nb |
| Shielding Gas | I1 (EN ISO 14175) |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| C | Cr | Cu | Mn | Mo | Nb | Ni | P | S | Si | |||||
| 0.04 % | 20 % | 0.1 % | 1.5 % | 0.1 % | 0.7 % | 10 % | 0.02 % | 0.01 % | 0.8 % | |||||
| Typical Wire Composition % | ||||||||||||||
| 0.04 % | 19 % | 0.10 % | 1.7 % | 0.1 % | 0.60 % | 9.8 % | - | - | 0.7 % | |||||
Part Numbers and Accessories
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