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材质 | 碳C | 锰Mn | 硅Si | 硫S | 磷P |
Q235冷拉方钢 | ≤0.22% | 0.3%-0.65% | ≤0.35% | ≤0.05% | ≤0.045 |
Q235B级冷拉方钢 | ≤0.22% | 0.3%-0.75% | ≤0.35% | ≤0.45% | ≤0.045% |
Q235C级冷拉方钢 | ≤0.18% | 0.35%-0.80% | ≤0.040% | ≤0.040% | ≤0.30% |
Q235C级冷拉方钢 | ≤0.17% | 0.35%-0.80% | ≤0.035% | ≤0.035% | ≤0.30% |