Equivalent to: GB/T 29713 2209 AWS A5.9 ER2209 BS EN ISO 14343-A-G 22 9 3 N L
Characteristics & Applications
The weld metal is of 22Cr-9Ni-3Mo composition, which is suitable for welding 22Cr duplex stainless steel such as UNS31803 (i.e. Alloy 2205). It features high strength, as well as excellent resistance to porosity and stress corrosion cracking.
Precautions
1.The shielding gas to be used shall be 98%Ar + 2%CO₂ with a gas flow rate of 15–25 L/min.
2.The welding site must be well sheltered from wind to prevent the dissipation of shielding gas that would cause welding defects.
3.Oil stains, moisture and other contaminants on the welding area must be completely removed.
4.When performing non-consumable electrode filler wire welding processes such as TIG, plasma arc welding or laser welding, the shielding gas shall be 99.99%Ar.
Typical Chemical Composition of Welding Wire (wt%):
| C | Mn | Si | P | S | Cr | Ni | Mo | N |
Typical Value | ≤0.03 | 0.5-2.0 | ≤0.9 | ≤0.03 | ≤0.03 | 21.5-23.5 | 7.5-9.5 | 2.5-3.5 | ≥0.05 |
Standard Value | 0.024 | 1.63 | 0.56 | 0.018 | 0.005 | 22.23 | 8.82 | 0.13 | 0.13 |
