元素 | C | S | Mn | P | Si | Cu |
含量 | ≤0.22 | ≤0.025 | ≤1.60 | ≤0.025 | ≤0.55 | ≤0.55 |
厚度 | ≤16mm | 16-40mm | 40-63mm | 63-80mm | 80-100mm | 100-150mm |
屈服强度 | ≥355Mpa | ≥345Mpa | ≥335Mpa | ≥325Mpa | ≥315Mpa | ≥295Mpa |
抗拉强度 | 450-680Mpa |
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