电焊钢管偏差和水压试验压力。
电焊钢管径、壁厚及允许偏差、定尺长度偏差和水压试验压力。
生产标准 Standard | 外径O.D. | 壁厚W.T. | 定尺长度 允许偏差(mm) Length Tolerance | 水压试验 压力(Mpa) Test Pressure | ||
尺寸(mm) Dimension | 允许偏差 Tolerance | 尺寸(mm) Dimension | 允许偏差 Tolerance | |||
GB/T 3092-93 | 114.0 | ±1% | 4.00 | +12% -15% | +20 0 |
|
5.00 | ||||||
140.0 | ±1% | 4.00 | +12% -15% | +20 0 |
3.0 | |
5.50 | ||||||
165.0 | ±1% | 4.50 | +12% -15% | +20 0 | 2.5 3.0 | |
5.50 | ||||||
GB/T14980-94 | 168.3 | ±0.8% |
5.0
6.0 | ±12.5% | +20 0 | 5 |
219.1 | ±0.8% |
4.5 5.0 5.5
7.0 8.0
11.0 | ±12.5% | +20 0 | 5 | |
273 | ±0.8% | 5.0 5.5 6.0 7.0 8.0 10.0 | ±12.5% | +20 0 | 5 | |
323.9 | ±0.8% | 5.0 5.5 6.0
8.0 10.0
| ±12.5% | +20 0 | 3 | |
JIS G3452-1988 | 114.3 139.8 165.2 216.3 267.4 318.5 | ±1% ±1% ±1.6mm ±0.8% ±0.8% ±0.8% | 5 4.5 5.0 5.8 6.6 6.9 | -12.5% | ---- | 2.5 |