国内阀门材料常用技术标准 灰铸铁件、单铸试棒的抗拉强度
牌 号 |
最小抗拉强度 σb N/mm2(kgf/mm2) |
HT 100 | 100(10.2) |
HT 150 | 150(15.3) |
HT 200 | 200(20.4) |
HT 250 | 250(25.5) |
HT 300 | 300(30.6) |
HT 350 | 350(35.7) |
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