国外阀门材料常用技术标准 压力容器部件用碳钢锻件、拉伸要求
| 牌号1 | 牌号2和牌号4 | 牌号3 | |
|
拉伸强度 ≥,ksi[MPa] |
60-85[415-585] | 70-95[485-655] | 75-100[515-690] |
|
屈服强度 (0.2%残余变形),≥ksi[MPa] |
30[205] | 36[250] | 37.5[260] |
|
延伸率 2in.[50mm],≥,% |
23 | 20 | 19 |
|
断面收缩率,≥,% |
38 | 33 | 30 |
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