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| 螺旋钢管 | 螺旋钢管的尺寸和标准试验压力
 
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规定外径D

Specified outside

diameter

规定壁厚t mm

Specified thickness

最低试验压力
钢 级
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标准给出的最低(标准)试验压力,表中未列出的钢级,管径和壁厚的钢管的最低试验压力按下式计算并考虑标准对最高试验压力的限制,当采用GB/T9711.2-1999jf,除另有协议外,S中的系数为95%, 并规定D≤406.4mm,最大压力为50MPa;D>406.4mm,最大压力为25M Pa。
式中:P-静水压试验压力(MPa);S-标准规定最小总伸长应力(Rt10.5MPa)乘以标准所给系数;T-钢管壁厚(mm);D-钢管外径(mm)。
2、L210、L245钢级D≤48.3mm钢管的试验压力是给定的。
其余外径和心中壁厚钢试验压力是按注1的公式计算的。
3、按GB/T3091-2001生产的钢管应逐根进行水压试验,试验压力应符合表一规定。
表一
公称外径(mm) Nominal outer diameter

试验压力(MPa) Test pressure

D≤168.3

3

168.3<D≤323.9

5

323.9<D≤508

3

D>508

2.5