国外阀门材料常用技术标准 管道部件用碳钢锻件、化学成分
元素 | 成分,% | 元素 | 成分,% |
C | ≤0.35 | Cu | ≤0.40A |
Mn | 0.60-1.05 | Ni | ≤0.40A |
P | ≤0.035 | Cr | ≤0.30A、B |
S | ≤0.040 | Mo | ≤0.12A、B |
Si | 0.10-0.35 | V | ≤0.08 |
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