螺旋鋼管水壓--鋼管尺寸和標準試驗壓力
|
規定外徑D Specified outside diameter |
規定壁厚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) |
|
|
8-5/8 |
219.1 |
5.0 7.0 10.0 13.0 |
5.8 8.1 11.5 15.0 |
6.7 9.4 13.4 17.4 |
9.9 13.9 19.9 20.7 |
11.0 15.3 20.7 20.7 |
12.3 17.3 20.7 20.7 |
13.4 18.7 20.7 20.7 |
14.2 19.9 20.7 20.7 |
15.4 20.7 20.7 20.7 |
16.6 20.7 20.7 20.7 |
19.0 20.7 20.7 20.7 |
|
9-5/8 |
244.5 |
5.0 7.0 10.0 13.0 |
5.2 7.2 10.3 13.4 |
6.0 8.4 12.0 15.6 |
10.1 14.1 20.2 20.7 |
11.1 15.6 20.7 20.7 |
12.5 17.5 20.7 20.7 |
13.6 19.0 20.7 20.7 |
14.4 20.2 20.7 20.7 |
15.6 20.7 20.7 20.7 |
16.9 20.7 20.7 20.7 |
19.3 20.7 20.7 20.7 |
|
10-3/4 |
273.1 |
5.0 7.0 10.0 13.0 |
4.6 6.5 9.2 12.0 |
5.4 7.5 10.8 14.0 |
9.0 12.9 18.1 20.7 |
10.1 13.9 19.9 20.7 |
11.2 15.7 20.7 20.7 |
12.1 17.0 20.7 20.7 |
12.9 18.1 20.7 20.7 |
14.0 19.6 20.7 20.7 |
15.4 20.7 20.7 20.7 |
17.3 20.7 20.7 20.7 |
|
12-3/4 |
323.9 |
5.0 7.0 10.0 14.0 |
3.9 5.5 7.8 10.9 |
4.5 6.4 9.1 12.7 |
7.6 10.7 15.2 20.7 |
8.4 11.8 16.8 20.7 |
9.4 13.2 18.9 20.7 |
10.2 14.3 20.5 20.7 |
10.9 15.2 20.7 20.7 |
11.8 16.5 20.7 20.7 |
12.7 17.8 20.7 20.7 |
14.6 20.4 20.7 20.7 |
|
|
(325.0) |
5.0 7.0 10.0 14.0 |
3.9 5.4 7.8 10.9 |
4.5 6.3 9.0 12.7 |
7.6 10.6 15.2 20.7 |
8.4 11.7 16.7 20.7 |
9.4 13.2 18.8 20.7 |
10.2 14.3 20.4 20.7 |
10.9 15.2 20.7 20.7 |
11.8 16.5 20.7 20.7 |
12.7 17.8 20.7 20.7 |
14.5 20.3 20.7 20.7 |
|
13-3/8 |
339.7 |
5.0 8.0 12.0 16.0 |
3.7 5.9 8.9 11.9 |
4.3 6.9 10.4 13.8 |
7.3 11.6 17.4 20.7 |
8.0 12.8 19.2 20.7 |
9.0 14.4 20.7 20.7 |
9.8 15.6 20.7 20.7 |
10.4 16.6 20.7 20.7 |
11.3 18.0 20.7 20.7 |
12.1 19.4 20.7 20.7 |
13.9 20.7 20.7 20.7 |
|
14 |
355.6 |
5.0 8.0 12.0 16.0 |
4.3 5.7 8.5 11.3 |
5.0 6.6 9.9 13.2 |
8.3 11.1 16.6 20.7 |
9.2 12.2 18.4 20.7 |
10.3 13.8 20.7 20.7 |
11.2 14.9 20.7 20.7 |
11.2 14.9 20.7 20.7 |
12.9 17.2 20.7 20.7 |
13.9 18.6 20.7 20.7 |
15.9 20.7 20.7 20.7 |
|
|
(377.0) |
5.0 8.0 12.0 16.0 |
4.0 5.3 8.0 10.7 |
4.7 6.2 9.4 12.5 |
7.8 10.5 15.7 20.7 |
8.6 11.5 17.3 20.7 |
9.7 13.0 19.5 20.7 |
10.6 14.1 20.7 20.7 |
11.2 15.0 20.7 20.7 |
12.2 16.2 20.7 20.7 |
13.1 17.5 20.7 20.7 |
15.0 20.0 20.7 20.7 |
|
16 |
406.4 |
6.0 8.0 12.0 16.0 19.1 25.4 |
3.7 5.0 7.4 9.9 11.7 15.5 |
4.3 5.8 8.7 11.6 13.6 18.1 |
7.3 9.7 14.6 19.6 20.7 |
8.0 10.7 16.1 20.7 20.7 |
9.0 12.0 18.1 20.7 20.7 |
9.8 13.1 19.6 20.7 20.7 |
10.4 13.9 20.7 20.7 20.7 |
11.3 15.1 20.7 20.7 20.7 |
12.2 16.2 20.7 20.7 20.7 |
13.9 18.6 20.7 20.7 20.7 |
|
|
(426.0) |
6.0 8.0 12.0 16.0 19.1 25.4 |
3.5 4.7 7.1 9.5 11.3 15.0 |
4.1 5.5 8.3 11.0 13.2 17.5 |
6.9 9.3 13.9 18.5 20.7 |
7.7 10.2 15.3 20.4 20.7 |
8.6 11.5 17.2 20.7 20.7 |
9.3 12.5 18.7 20.7 20.7 |
9.9 13.2 19.9 20.7 20.7 |
10.8 14.4 20.7 20.7 20.7 |
11.6 15.5 20.7 20.7 20.7 |
13.3 17.7 20.7 20.7 20.7 |
|
18 |
457.0 |
6.0 8.0 12.0 16.0 22.2 25.4 |
3.3 4.4 6.6 8.8 12.1 13.8 |
3.9 5.1 7.7 10.3 14.0 16.1 |
6.5 8.6 12.9 17.3 20.7 |
7.1 9.5 14.3 19.0 20.7 |
8.0 10.7 16.1 20.7 20.7 |
8.7 11.6 17.4 20.7 20.7 |
9.3 12.4 18.5 20.7 20.7 |
10.0 13.4 20.1 20.7 20.7 |
10.8 14.4 20.7 20.7 20.7 |
12.4 16.5 20.7 20.7 20.7 |
|
20 |
508.0 |
6.0 8.0 12.0 16.0 22.2 28.6 |
3.0 4.0 6.0 7.9 9.3 11.0 14.2 |
3.5 4.6 6.9 9.3 10.9 12.8 16.6 |
6.2 8.2 12.3 16.4 19.6 20.7 20.7 |
6.8 9.1 13.6 18.1 20.7 20.7 20.7 |
7.7 10.2 15.3 20.4 20.7 20.7 20.7 |
8.3 11.1 16.6 20.7 20.7 20.7 |
8.8 11.8 17.6 20.7 20.7 20.7 |
9.6 12.8 19.1 20.7 20.7 20.7 |
10.3 13.7 20.6 20.7 20.7 20.7 |
11.8 15.7 20.7 20.7 20.7 20.7 |
|
|
(529.0) |
6.0 9.0 12.0 14.0 16.0 19.1 22.2 28.6 |
2.9 1.3 5.7 6.7 7.6 9.1 10.6 13.6 |
3.3 5.0 6.7 7.8 8.9 10.6 12.3 15.9 |
5.9 8.9 11.8 13.8 15.8 18.8 20.7 20.7 |
6.5 9.8 13.1 15.2 17.4 20.7 20.7 20.7 |
7.3 11.0 14.7 17.1 19.6 20.7 20.7 20.7 |
8.0 11.9 15.9 18.6 20.7 20.7 20.7 |
8.5 12.7 16.9 19.8 20.7 20.7 20.7 |
9.2 13.8 18.4 20.7 20.7 20.7 20.7 |
9.9 14.9 19.8 20.7 20.7 20.7 20.7 |
11.3 17.0 20.7 20.7 20.7 20.7 20.7 |
注：1、此表是GB/T9711-1997和APISL標準給出的最低（標準）試驗壓力，表中未列出的鋼級，管徑和壁厚的鋼管的最低試驗壓力按下式計算并考慮標準對最高試驗壓力的限制，當采用GB/T9711.2-1999jf，除另有協議外，S中的系數為95%， 并規定D≤406.4mm，最大壓力為50MPa；D＞406.4mm，最大壓力為25M Pa。
式中：P-靜水壓試驗壓力（MPa）；S-標準規定最小總伸長應力（Rt10.5MPa）乘以標準所給系數；T-鋼管壁厚（mm）；D-鋼管外徑（mm）。
2、L210、L245鋼級D≤48.3mm鋼管的試驗壓力是給定的。
其余外徑和心中壁厚鋼試驗壓力是按注1的公式計算的。
3、按GB/T3091-2001生產的鋼管應逐根進行水壓試驗，試驗壓力應符合表一規定。
表一
|
公稱外徑（mm） Nominal outer diameter |
試驗壓力（MPa） Test pressure |
|
D≤168.3 |
3 |
|
168.3＜D≤323.9 |
5 |
|
323.9＜D≤508 |
3 |
|
D＞508 |
2.5 |
DN15,DN20,DN25是外徑。四分管和六分管的直徑
1 英寸=25.4毫米 =8英分
1/2 是 四分(4英分) DN15
3/4 是 六分(6英分) DN20
2分管 DN8
4分管 DN15
6分管 DN20
1" DN25
1.2" DN32
1.5" DN40
2" DN50
2.5" DN65
3" DN80
4" DN100
5" DN125
6" DN150
8" DN200
10" DN250
12" DN300
