規(guī)定外徑D
Specified outside
diameter |
規(guī)定壁厚t mm
Specified thickness |
最低試驗壓力 |
鋼 級 |
in |
mm |
L210
(A) |
L245
(B) |
L290
(X42) |
L320
(X46) |
L360
(X52) |
L390
(X56) |
L415
(X60) |
L450
(X65) |
L485
(X70) |
L555
(X80) |
22 |
559.0 |
6.0
9.0
12.0
14.0
19.1
22.2
25.4
28.6
|
2.7
4.1
5.4
6.3
8.6
10.0
11.5
12.9
|
3.2
4.7
6.3
7.4
10.0
11.7
13.4
15.0
|
5.6
8.4
11.2
13.1
17.8
20.7
20.7
20.7
|
6.2
9.3
12.4
14.4
19.7
20.7
20.7
20.7
|
7.0
10.4
13.9
16.2
20.7
20.7
20.7
20.7
|
7.5
11.3
15.1
17.6
20.7
20.7
20.7
20.7
|
8.0
12.0
16.0
18.7
20.7
20.7
20.7
20.7
|
8.7
13.0
17.4
20.3
20.7
20.7
20.7
20.7
|
9.4
14.1
18.7
20.7
20.7
20.7
20.7
20.7
|
10.7
16.1
20.7
20.7
20.7
20.7
20.7
20.7 |
24 |
610.0 |
6.0
9.0
12.0
14.0
19.1
25.4
28.6
34.9
41.3
|
2.5
3.7
5.0
5.8
7.9
10.5
11.8
14.4
17.1
|
2.9
4.3
5.8
6.8
9.1
12.0
13.6
15.6
19.9
|
5.1
7.7
10.3
12.0
16.3
20.7
20.7
20.7
20.7
|
5.7
8.5
11.3
13.2
17.9
20.7
20.7
20.7
|
6.4
9.6
12.7
14.9
20.2
20.7
20.7
20.7
|
6.9
10.4
13.8
16.1
20.7
20.7
20.7
20.7
|
7.3
11.0
14.7
17.1
20.7
20.7
20.7
|
8.0
12.0
15.9
18.6
20.7
20.7
20.7
|
8.6
12.9
17.2
20.0
20.7
20.7
20.7
|
9.8
14.7
19.7
20.7
20.7
20.7
20.7
|
|
(630.0) |
6.2
9.0
12.0
16.0
19.1
25.4
28.6
34.9
41.3
|
2.4
3.6
1.8
6.4
7.6
10.2
11.4
14.0
16.5
|
2.8
4.2
5.6
7.5
8.9
11.9
13.3
16.3
19.3
|
5.0
7.5
9.9
13.3
15.8
20.7
20.7
20.7
20.7
|
5.5
8.2
11.1
14.6
17.5
20.7
20.7
20.7
|
6.2
9.3
12.3
16.5
19.6
20.7
20.7
20.7
|
6.7
10.0
13.4
17.8
20.7
20.7
20.7
|
7.1
10.7
14.2
19.0
20.7
20.7
20.7
|
7.7
11.6
15.4
20.6
20.7
20.7
20.7
|
8.3
12.5
16.6
20.7
20.7
20.7
20.7
|
9.3
14.3
19.0
20.7
20.7
20.7
20.7
|
26 |
660.0 |
6.0
9.0
12.0
14.0
16.0
19.1
25.4
28.6
34.9
41.3
|
2.3
3.4
4.6
5.4
6.1
7.3
9.7
10.9
13.3
15.8 |
2.7
4.0
5.4
6.2
7.1
8.5
11.3
12.7
15.5
18.4 |
4.7
7.1
9.5
11.1
12.6
15.1
20.1
20.7
20.7
20.7 |
5.2
7.9
10.4
12.2
13.9
16.7
20.7
20.7
20.7
20.7
|
5.9
8.8
11.8
13.8
15.6
18.8
20.7
20.7
20.7
|
6.4
9.6
12.8
14.9
16.9
20.3
20.7
20.7
|
6.8
10.2
13.6
15.8
18.0
20.7
20.7
20.7
|
7.4
11.0
14.7
17.2
19.5
20.7
20.7
20.7
|
7.9
11.9
15.9
18.5
20.7
20.7
20.7
20.7
|
9.1
13.6
18.2
20.7
20.7
20.7
20.7
20.7
|
28 |
711.0 |
6.0
9.0
12.0
16.0
19.1
25.4
28.6
34.9
41.3
|
2.1
3.2
4.3
5.7
6.8
9.0
10.1
12.4
14.6
|
2.5
3.7
5.0
6.6
7.9
10.5
11.8
14.4
17.1
|
4.4
6.6
8.8
11.8
14.0
18.6
20.7
20.7
20.7
|
4.9
7.3
9.7
13.0
15.5
20.6
20.7
20.7
20.7
|
5.5
8.2
10.9
14.6
17.4
20.7
20.7
20.7
|
5.9
8.9
11.8
15.8
18.9
20.7
20.7
|
6.3
9.5
12.6
16.8
20.1
20.7
20.7
|
6.8
10.6
13.7
18.2
20.7
20.7
20.7
|
7.4
11.1
14.7
19.6
20.7
20.7
20.7
|
8.4
12.6
16.9
20.7
20.7
20.7
20.7
|
|
(720.0) |
6.0
9.0
12.0
16.0
19.1
25.4
18.6
34.9
41.3
|
2.1
3.2
4.2
5.6
6.7
8.9
10.0
12.2
14.5
|
2.5
3.7
4.9
6.5
7.8
10.4
11.7
14.3
16.9
|
4.4
6.5
8.7
11.6
13.8
18.4
20.7
20.7
20.7
|
4.8
7.2
9.6
12.8
15.3
20.3
20.7
20.7
20.7
|
5.4
8.1
10.8
14.4
17.2
20.7
20.7
20.7
|
5.9
8.8
11.7
15.6
18.6
20.7
20.7
|
6.2
9.3
12.5
16.6
19.8
20.7
20.7
|
6.8
10.1
13.5
18.0
20.7
20.7
20.7
|
7.3
10.9
14.6
19.4
20.7
20.7
20.7
|
8.3
12.5
16.7
20.7
20.7
20.7
20.7
|
尺寸和標(biāo)準(zhǔn)試驗壓力表
式中：P-靜水壓試驗壓力（MPa）；S-標(biāo)準(zhǔn)規(guī)定最小總伸長應(yīng)力（Rt10.5MPa）乘以標(biāo)準(zhǔn)所給系數(shù)；T-鋼管壁厚（mm）；D-鋼管外徑（mm）。
