Table 6 Results of tensile test
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 | 12.5×50mm | 550 | 407 | 0.73 | 24 |
2 | 554 | 402 | 0.74 | 27 | |
3 | 548 | 408 | 0.73 | 22 | |
mean value | Â | 551 | 405 | 0.73 | 25 |
GB/T9711-2017 |  | 460~760 | 360~530 | ≤0.93 | ≥18 |