国外阀门材料常用技术标准 高压输送用管法兰、管件、阀门及零件用碳钢和合金钢锻件 化学成分要求
成分,% | ||
熔练分析 | 成品分析 | |
碳,≤ | 0.26 | 0.265 |
锰,≤ | 1.40 | 1.44 |
磷,≤ | 0.025 | 0.030 |
硫,≤ | 0.025 | 0.030 |
硅 | 0.15-0.35 | 0.10-0.40 |
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