|
标准
|
外径
|
壁厚
|
壁厚允许偏差
|
|
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%
|
|