Equivalent to: GB/T 29713 S347L AWS A5.9 ER347L BS EN ISO 14343-A-G 19 9 Nb L
Characteristics & Applications
MSM-WS347L is a stranded welding wire or filler wire for gas-shielded welding (MAG, MIG, TIG). The weld metal consists of 19Cr-9Ni. With ultra-low carbon content and an appropriate amount of niobium, this welding wire can inhibit the precipitation of chromium carbide along grain boundaries, thereby enhancing the weld’s intergranular corrosion resistance while ensuring excellent mechanical properties of the weld. It is suitable for welding 0Cr18Ni9Ti, 1Cr18Ni9Ti, austenitic stainless steels of similar compositions and other alloys.
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 which may cause welding defects.
3.Oil stains, moisture, oxide layers and other contaminants on the welding area must be thoroughly 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 | Cu | Nb |
Typical Value | ≤0.03 | 1.0-2.5 | ≤0.65 | ≤0.03 | ≤0.03 | 19.0-21.5 | 9.0-11.0 | 0.75 | ≥0.05 | 10*C-1.0 |
Standard Value | 0.022 | 1.62 | 0.51 | 0.019 | 0.001 | 19.73 | 10.17 | 0.03 | 0.02 | 0.42 |
