From: Failure analysis of weld cracking of gas gathering pipeline in dewatering station
Item/test specimen | Specimen size (width × gauge) | Tensile strength (MPa) | Yield strength (MPa) | Yield strength ratio | Elongation (%) |
---|---|---|---|---|---|
1 | 15×50mm | 527 | 392 | 0.74 | 32 |
2 | 531 | 395 | 0.74 | 31 | |
3 | 533 | 397 | 0.74 | 30 | |
Mean value | Â | 530 | 395 | 0.74 | 31 |
GB/T9711-2017 |  | 460~760 | 360~530 | ≤0.93 | ≥20 |