镍 | 铬 | 碳 | 锰 | 硅 | 铜 | 钼 | 氮 | 磷 | 硫 | 铁 |
30.00-32.00 |
26.00-28.00 |
≤0.015 |
≤2.00 |
≤0.030 |
1.00-1.40 |
6.00-7.00 |
0.15-0.25 |
≤0.020 |
≤0.010 |
余量 |
PREN = (铬% + 3.3钼% + 16氮%) ≥ 48