| 牌号 | C | Mn | P | S | Si | V | Nb |
| A633MGrA | ≤0.18 | 1.0-1.35 |
≤0.035 |
≤0.04 |
0.15-0.5 |
0.15-0.4 |
≤0.05 |
| A633GrC | ≤0.20 | 1.15-1.5 | 0.01-0.5 | ||||
| A633GrD | ≤0.20 | 0.7-1.35 | ---- | ||||
| A633GrE | ≤0.22 | 1.15-1.5 | 0.01-0.05 | ||||
| D级钢铜含量不超过0.35%,镍含量不超过0.25%,铬含量不超过0.25%,钼含量不超过0.08%。 | |||||||
| E级钢氮含量不超过0.03%,E级钢全铝含量小应为0.018%或钒氮比小应为4:1。订货137+8188+0376 | |||||||
|
牌号 |
屈服点 |
拉伸强度 |
≤(200mm)的伸长率(小)% B | ≤(50mm)的伸长率(小)% B |
| A633GrA | ≥290Mpa | 430-570Mpa | 18 | 23 |
| A633GrC | ≥345Mpa | 485-620Mpa | 18 | 23 |
| A633GrD | ≥345Mpa | 485-620Mpa | 18 | 23 |
| A633GrE | ≥415Mpa | 550-690Mpa | 18 | 23 |
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