
| C | Si | Mn | P | S | Mo | Cr | Ni | B |
| 0.26 | 0.70 | 1.60 | 0.025 | 0.010 | 0.50 | 1.50 | 0.80 | 0.004 |
| 牌号 | 厚度 | 抗拉强度 | 延伸率 | —20℃冲击功(纵向)AKV/J | 布氏硬度HBW | 冷弯 |
| NM450 | 6~60 | — | — | ≥24 | ≥448 | 可按照客户要求检测 |
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