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- W2377546572 abstract "In this article, it introduced the difference of SAWH pipe technological specifications between 0.72 design coefficient and 0.8 design coefficient, and comparative analysis was carried out for SAWH pipe with two kinds of design coefficient. The result indicated that the structures of plate strip are mainly granular bainite for 0.72 and 0.8 design coefficients, containing different amount of polygonal ferrite. The polygonal ferrite content is less in the head, middle and tail of plate strip with 0.8 design coefficient, small size, and organization is more uniform, the difference of mechanical performance is small. The biggest difference of yield strength in the head, middle and tail of plate strip with 0.8 design coefficient is 14 MPa, it is about 50 MPa lower than that of 0.72 design coefficient, while impact toughness increases by 25%. The hydrostatic test result showed that the welded pipe with 0.8 design coefficient did not appear deformation and leakage when hydrostatic test was conducted under 100% yield strength. At present the pipe processing level can fully meet the technological requirements of welded pipe with 0.8 design coefficient." @default.
- W2377546572 created "2016-06-24" @default.
- W2377546572 creator A5066824934 @default.
- W2377546572 date "2014-01-01" @default.
- W2377546572 modified "2023-09-23" @default.
- W2377546572 title "Study on X80 Welded Pipe Performance Designed by Using 0.8 Coefficient" @default.
- W2377546572 hasPublicationYear "2014" @default.
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