The main component is C-18Cr-12Ni-2Mo, with a C content of 0.04-0.08%. It is suitable for welding 316H base metal and can provide high high-temperature strength.
Instruction:
1. Shielding gas: use pure argon for protection, and the purity should be above 99.99%, otherwise it will affect the surface color of the weld bead and pores;
2. Gas flow: about 10-15L/min is appropriate;
3. Before welding, the moisture, rust stains and oil stains on the surface of the base metal should be fully removed;
4. The protruding length of the tungsten electrode should be as short as possible relative to the nozzle; the arc length should generally be controlled within 1-3mm;
5. During outdoor welding, when the wind speed is greater than 1.5m/ls, windproof measures should be taken to prevent porosity;
6. Inter-channel temperature: ≤100°C.
| Category | AWS standard | Chemical compostition of deposited metal(wt%) | |||||||||
| C | Mn | Si | Cr | Ni | Mo | P | S | Cu | |||
| Carbon Steel and High Tensile Strength Steel | Gas Shield | ER70S-6 | 0.072 | 1.41 | 0.82 | 0.02 | 0.01 | 0.01 | - | - | - |
| ER80S-G | 0.68 | 1.43 | 0.51 | 0.07 | 0.06 | 0.41 | - | - | - | ||
| ER110S-G | 0.052 | 1.65 | 0.32 | 0.03 | 2.26 | 0.32 | - | - | - | ||
| Stainless Steel | CO2 Gas Shield | ER308 | 0.08 | 1.0-2.5 | 0.30-0.65 | 19.5-22.0 | 9.0-11.0 | 0.75 | 0.03 | 0.03 | 0.75 |
| ER308L | 0.03 | 1.0-2.5 | 0.30-0.65 | 19.5-22.0 | 9.0-11.0 | 0.75 | 0.03 | 0.03 | 0.75 | ||
| ER309 | 0.12 | 1.0-2.5 | 0.30-0.65 | 23.0-25.0 | 12.0-14.0 | 0.75 | 0.03 | 0.03 | 0.75 | ||
| ER309L | 0.03 | 1.0-2.5 | 0.30-0.65 | 23.0-25.0 | 12.0-14.0 | 0.75 | 0.03 | 0.03 | 0.75 | ||
| ER316L | 0.03 | 1.0-2.5 | 0.30-0.65 | 18.0-20.0 | 11.0-14.0 | 2.0-3.0 | 0.03 | 0.03 | 0.75 | ||
| ER347 | 0.08 | 1.0-2.5 | 0.30-0.65 | 19.0-21.5 | 9.0-11.0 | 0.75 | 0.03 | 0.03 | - | ||
| ER385 | 0.025 | 1.0-2.5 | 0.5 | 19.5-21.5 | 24.0-26.0 | 4.2-5.2 | 0.03 | 0.03 | 1.2-2.0 | ||
| ER2209 | 0.03 | 0.5-2.0 | 0.9 | 21.5-23.5 | 7.5-9.5 | 2.5-3.5 | 0.03 | 0.03 | 0.75 | ||
| Nickel-based Alloy | Ar Gas Shield | ERNiCr-3 | 0.1 | 2.5-3.5 | 0.5 | 18.0-22.0 | ≥67 | - | 0.04 | 0.015 | - |
| ERNiCrMo-3 | 0.1 | 0.5 | 0.5 | 20.0-23.0 | ≥58 | 8.0-10.0 | 0.02 | 0.015 | - | ||
