| C | Si | Mn | P | S | Al | Cr | Cu | Mo | V | Nb | Ni | Ti | N |
| ≤0.16 | ≤0.4 | 0.8-1.5 | ≤0.025 | ≤0.015 | ≥0.02 | ≤0.3 | ≤0.3 | ≤0.08 | ≤0.05 | ≤0.05 | ≤0.5 | ≤0.03 | ≤0.012 |
| 牌号 | 厚度 | 屈服强度MPa | 抗拉强度MPa | 延伸率A% |
| P275NH | ≤16 | ≥275 | 390-510 | ≥24 |
| 16-40 | ≥265 | |||
| 41-60 | ≥255 | |||
| 61-100 | ≥235 | 370-490 | ≥23 | |
| 101-150 | ≥225 | 360-480 | ||
| 151-250 | ≥215 | 350-470 |
| 牌号 |
厚度 mm |
在下列试验温度时的冲击功值(KV/J) | |||||||||
| 横向 | 纵向 | ||||||||||
| -50 | -40 | -20 | 0 | +20 | -50 | -40 | -20 | 0 | +20 | ||
| P275NH | 5-250 | hnzunxin | 30 | 40 | 50 | 45 | 65 | 75 | |||
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