C | Si | Mn | P | S | Al | N | V | Ti | Cr | Ni | Mo | B | CEV |
≤0.2 | ≤0.8 | ≤1.7 | ≤0.02 | ≤0.005 | ≥0.02 | ≤0.015 | ≤0.12 | ≤0.05 | ≤1.5 | ≤2.5 | ≤0.7 | ≤0.005 | ≤0.6 |
C | Si | Mn | P | S | Al | N | V | Ti | Cr | Ni | Mo | B |
0.09- 0.15 |
0.25 - 0.35 |
1.3- 1.6 |
≤0.01 | ≤0.003 |
0.045 - 0.095 |
≤0.005 |
0.035 - 0.045 |
0.003 - 0.012 |
0.2 - 0.3 |
0.65 - 0.75 |
0.3 - 0.4 |
0.001 - 0.0025 |
规格mm | 拉伸强度 | 屈服强度 | 伸长率 | 横向冲击功 | 温度℃ |
10-60 | 770-940 | ≥690 | ≥14 | ≥27 | -40、-60 |