螺旋钢管规定外径D Specified outside diameter |
螺旋钢管规定壁厚t mm Specified thickness |
螺旋钢管最低试验压力 |
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螺旋钢管钢 级 |
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in |
mm |
L210 |
L245 |
L290 |
L320 |
L360 |
L390 |
L415 |
L450 |
L485 |
L555 |
|
22 |
559.0 |
6.0 |
2.7 |
3.2 |
5.6 |
6.2 |
7.0 |
7.5 |
8.0 |
8.7 |
9.4 |
10.7 |
24 |
610.0 |
6.0 |
2.5 |
2.9 |
5.1 |
5.7 |
6.4 |
6.9 |
7.3 |
8.0 |
8.6 |
9.8 |
|
(630.0) |
6.2 |
2.4 |
2.8 |
5.0 |
5.5 |
6.2 |
6.7 |
7.1 |
7.7 |
8.3 |
9.3 |
26 |
660.0 |
6.0 |
2.3 |
2.7 |
4.7 |
5.2 |
5.9 |
6.4 |
6.8 |
7.4 |
7.9 |
9.1 |
28 |
711.0 |
6.0 |
2.1 |
2.5 |
4.4 |
4.9 |
5.5 |
5.9 |
6.3 |
6.8 |
7.4 |
8.4 |
|
(720.0) |
6.0 |
2.1 |
2.5 |
4.4 |
4.8 |
5.4 |
5.9 |
6.2 |
6.8 |
7.3 |
8.3 |