通用阀门材料 专用级紧固件材料要求
牌 号 | 标 准 | 热处理制度 | 规 格 | 机械性能 ≥ | HB | ||
σb | σs |
δ5 % |
|||||
MPa | |||||||
30CrMo | GB/T 3077 |
调 质 (回火≥ 550℃) |
― | ― | ― | ― | 234~285 |
35CrMo | <M24 | 835 | 735 | 13 | 269~321 | ||
>M24~M80 | 805 | 685 | 13 | 234~285 | |||
>M80 | 735 | 590 | 13 | 234~285 | |||
25Cr2MoVA | GB/T 3077 |
调 质 (回火≥ 600℃) |
≤M48 | 835 | 735 | 15 | 269~321 |
>M48 | 805 | 685 | 15 | 245~277 | |||
0Cr18Ni9 | GB/T 1220 | 固 溶 | ― | 520 | 206 | 40 | ≤187 |
0Cr17Ni12Mo2 | ― |
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