標準 |
外徑 |
壁厚 |
壁厚允許偏差 |
DIN17175 |
≤130 |
S≤2·Sn |
+15%,-10% |
2·Sn |
+12.5%,-10% | ||
S>4·Sn |
±9% | ||
>130 |
S≤0.05da |
+15%,-10% | |
0.05da |
±12.5% | ||
S>0.11da |
±10% | ||
GB3087 |
-- |
3-20 |
+12.5%,-12.5% |
>20 |
±10% | ||
ASME SA450 |
-- |
2.4-3.8 |
+35%,-0% |
>3.8-4.6 |
+35%,-0% | ||
>4.6 |
+23%,-0% | ||
ASME SA530 |
-- |
-- |
±12.5% |