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Table 5 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

15×50mm

527

392

0.74

32

2

531

395

0.74

31

3

533

397

0.74

30

Mean value

 

530

395

0.74

31

GB/T9711-2017

 

460~760

360~530

≤0.93

≥20