The Advancement and Superiority of Longitudinal Submerged Arc Welded Pipe

The vast majority of oil and gas pipelines in the world require the use of longitudinal submerged arc welded pipes (LSAW). Canada and other western developed countries have improved the technology of spiral welded pipe (SSAW), such as pre-welding, precision welding, multi-wire welding, mechanical expansion, etc., which are designed with reference to the LSAW pipe process, which shows that the straight seam The advanced nature of welding pipe technology. Specifically: 1. Technically speaking, the advantages of LSAW steel pipe: The base material of the longitudinally welded pipe is a single controlled-rolled…

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