资讯动态
低温管道法兰用螺栓、螺母_阀门标准
|
螺 栓 材 料 |
使 用 状 态 |
螺 栓 规 格 |
螺栓试验 温度℃ |
使用温度 ℃ |
螺母材料 |
使 用 状 态 |
螺母试验 温度℃ |
|
35 |
正火 |
≤M22 |
-29 |
-29 |
15 |
正火 |
免作 |
|
M24～M48 |
-20 |
||||||
|
调质 |
≤M48 |
-29 |
|||||
|
40Cr |
≤M56 |
35 |
正火 或 调质 |
||||
|
40 MnB |
-40 |
-40 |
40 |
||||
|
40 MnVB |
40Mn |
||||||
|
35 CrMoA |
-100 |
-100 |
30 Mn2 |
调质 |
-70 |
||
|
30 CrMo |
|||||||
|
30 CrMoA |
35 CrMo |
||||||
|
0 Cr18Ni9 |
固溶 |
≤M48 |
免作 |
-196 |
0 Cr18Ni9 |
固溶 |
免作 |
|
0 Cr17Ni12 Mo2 |
≤M32 |
0Cr17Ni12 Mo2 |
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