• Corporate vision to become the pipeline industry Toyota
  • Corporate mission to enhance the quality level of Chinese manufacturing
  • Business goals domestic industry first
LSAW(Longitudinal-seam Submerged Arc Welded) Steel Pipe

LSAW(Longitudinal-seam Submerged Arc Welded) Steel Pipe

  • Introduction:Hebei Haihao Group can manufacture lsaw/erw/ssaw steel pipe in high quality.
  • Email:sales@haihaopipe.com

Longitudinal-seam Submerged Arc Welded (LSAW) pipes were made of steel plates cut from leveled hot rolled coils by both the JCOE and UOE (the forming process in which the plate like the letter “J”, “C”, “O” or “U” shape, then expansion) forming processes. Furthermore, the mechanical properties of the pipe base metal and weld metal were tested, and the results were in accordance with the corresponding pipe specification API SPEC 5L or DNV-OS-F101, which showed that domestic LSAW pipes could be used for oil and gas pipelines.

longitudinal-seam submerged arc welded steel pipe


Longitudinal Seam Submerged Arc Welded (LSAW) Steel Pipes
Standard  API 5L PSL1/2, EN-10208-1/2, GB9711.1/2, ISO, API 5CT, ASTM A53
Steel Grade  B, X42 up to X70; L245, L290 up to L485
Usage  Used for the conveyance of water, gas, or petroleum products
Size  LSAW from 219.1mm to 2000mm, thickness from 5mm to 25.4mm
Ends  Beveled ends with protector
Surface  Bare / Varnish coating / FBE,3PE coating DIN30670 / or by client option
Packing  Casing, bundled shipping in containers or by break bulk vessel


  Longitudinal-seam Submerged Arc Welded (LSAW) pipes with JCOE Process