元素 | 符号 | 范围 |
碳 | C | ≤0.045 |
锰 | Mn | ≤0.35 |
磷 | P | ≤0.010 |
硫 | S | ≤0.010 |
硅 | Si | ≤0.35 |
镍 | Ni | 50.00-55.00 |
铬 | Cr | 17.00-21.00 |
钛 | Ti | 0.80-1.15 |
铝 | Al | 0.40-0.60 |
钼 | Mo | 2.80-3.30 |
铌+钽 | Nb+Ta | 4.87-5.20 |
钴 | Co | ≤1.00 |
铜 | Cu | ≤0.23 |
硼 | B | ≤0.0060 |
铅 | Pb | ≤0.0010 |
硒 | Se | ≤0.0005 |
铋 | Bi | ≤0.00005 |
钙 | Ca | ≤0.0030 |
铁 | Fe | 余量 |