
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 | |
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 |
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
