Table 9 Impact performance test results
From: Failure analysis of weld cracking of gas gathering pipeline in dewatering station
Sample number | 1 | 2 | 3 | Mean value |
|---|---|---|---|---|
Axial direction | 31 | 27 | 31 | 30 |
Circumferential direction | 30 | 29 | 30 | 30 |
Girth weld | 25 | 26 | 25 | 25 |
SY/T 0452-2012 | ≥7 (J) | |||