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.
Typical Charpy V-Notch Properties
| Impact Value | Testing Temperature | |||
| as welded | ||||
| 75 J (55 ft-lb) | -60 degC (-76 degF) | |||
| 90 J (66 ft-lb) | 20 degC (68 degF) | |||
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 1.6MM-2.4MM 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 |
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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