OK Tigrod 318Si
Bare corrosion resisting stabilized chroumium-nickel-molybdenium wire for welding of Cr-Ni-Mo and Cr-Ni stabilized or non-stabilized steels. OK Tigrod 318Si 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 stabilization of niobium this alloy is recommended for service temperatures up to 400 °C.
Typical Charpy V-Notch Properties
| as welded | ||||
Typical Tensile Properties
| Condition | Elongation | Tensile Strength | Yield Strength |
| As Welded | 35 % | 615 MPa (89 ksi) | 460 MPa (67 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 |
Werkstoffnummer : ~1.4576 EN ISO 14343-A : W 19 12 3 Nb Si SFA/AWS A5.9 : ER318 (mod) |
Approvals
| Approvals |
CE EN 13479 DB 43.039.15 NAKS/HAKC 2.0 mm VdTÜV 09737 |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Alloy Type | Austenitic (with approx. 7 % ferrite) 19% Cr - 12% Ni - 3 % Mo - 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 % | 19 % | 0.1 % | 1.3 % | 2.8 % | 0.5 % | 12 % | 0.02 % | 0.01 % | 0.8 % | |||||
| Typical Wire Composition % | ||||||||||||||
| 0.05 % | 18.8 % | 0.10 % | 1.7 % | 2.60 % | 0.50 % | 11.9 % | - | - | 0.8 % | |||||
Part Numbers and Accessories
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