国外阀门材料常用技术标准 高温用铬镍铁合金钢铸件、化学成分要求
元素 | 成分,% |
Ni | 10.00-14.00 |
Cr | 23.00-28.00 |
C | 0.20-0.45 |
N | ≤0.20 |
Mn | ≤2.50 |
Si | ≤1.75 |
P | ≤0.05 |
S | ≤0.05 |
Fe及其它元素 | 由生产商和买方进行商定 |
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