牌号 | 化学成分(重量百分比) Chemicai composition(WT%) |
||||||||
碳 (C) |
锰 (Mn) |
磷 (P) |
硫 (S) |
镍 (Ni) |
铬 (Cr) |
硅 (Si) |
钼 (Mo) |
铜 (Cu) |
|
4140钢材 | 0.38~0.43 | 0.75~1.00 | ≤0.030 | ≤0.040 | ≤0.030 | 0.80~1.10 | 0.15~0.35 | 0.15~0.25 | ≤0.030 |