Chemical Composition (%)
| C | Mn | Si | P | S | Ni | Cu | Mo | |
| Range | ≤0.07 | 0.9-1.40 | 0.4-0.7 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.5 | ≤0.15 |
| Test | 0.05 | 1.28 | 0.65 | 0.010 | 0.012 | 0.030 | 0.16 | 0.02 |
Melting metal mechanical performance
| Tensile strength Rm (Mpa) | Yield strength Rp0.2 (Mpa) | Elongation ratio (%) | AKV(-30℃) | Shielding gas | |||||||
| Range | 490-670 | ≥390 | ≥18 | ≥27 | CO2 (purity≥99.8%) | ||||||
| Test | 575 | 458 | 27 | 90 | |||||||
