| C | Si | Mn | P | S |
Cr (注1) |
Ni (注1) |
Cu (注1) |
Mo (注1) |
Al (注2) |
Ti |
| ≤0.22 | ≤0.55 | ≤1.7 | ≤0.04 | ≤0.035 | ≤0.3 | ≤0.5 | ≤0.4 | ≤0.35 | ≤0.1 | ≤0.04 |
| 微合金元素见注4 | CE(注3)≤0.48 | |||||||||
| 厚度mm | 屈服强度MPa | 抗拉强度MPa | 延伸率% |
| >8-12 | ≥360 | ≥450 | ≥20 |
| >12-20 | ≥350 | ||
| >20-80 | ≥340 | ||
| >80-150 | ≥330 | ||
| >150-200 | ≥330 |