牌号 | C | Mn | P | S | Si | Ni | Cr | Cu | Mo | Nb |
A588GrK | ≤0.17 | 0.50-1.20 | ≤0.030 | ≤0.030 | 0.25-0.50 | ≤0.40 | 0.40-0.70 | 0.30-0.50 | ≤0.10 | 0.005-0.05 |
牌号 | 厚度mm | 抗拉强度MPa | 屈服强度MPa | 200mm厚的伸长率A% | 50mm的伸长率A% |
A588GrK | ≤100 | ≥485 | ≥345 | 18 | 21 |
100-125 | ≥460 | ≥315 | — | 21 | |
125-200 | ≥435 | ≥290 | — | 21 |
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