钢板牌号 | C | Si | Mn | P | S | Mo | Cr | Ni | Cu | Nb | V |
Q420HD | ≤0.18 | 0.15-0.5 | 0.90-1.50 | ≤0.020 | ≤0.015 | ≤0.3 | ≤0.3 | ≤0.6 | ≤0.35 | ≤0.04 | ≤0.07 |
钢板牌号 | 钢板厚度 | 上屈服强度 | 抗拉强度 | 断后伸长率% | 冲击温度 | 冲击功吸收能量 |
Q420HD | ≤50 | ≥420 | 585-705 | ≥20 | 30℃ | ≥47J |
>50-100 |
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