LSAW steel pipe refers to Longitudinal Submerged-Arc Welded Steel Pipe, which is made of hot-rolled steel plate or coils. LSAW steel pipe always goes to the big-sized welded pipe, which can’t be manufactured by electric resistance welding technique.
API 5L LSAW steel pipes ( Double Submerged arc welded) are used to convey low & high pressure petroleum, natural gas or other thick pipeline system.
LSAW could produce the thick wall thickness max. to 120mm.
specification of API 5L LSAW Transmission steel pipe
API 5L PSL1/PSL2,GR.B/X42/X46/X52/X56/X60/X65/X70
Outside Diameter: Φ406mm-Φ1626mm (16″-64″)
Wall thickness: 6.4mm-54mm (1/4″-21/8″)
Grades: API 5L (A, B, X42-X80)
End: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled
Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy,? Fusion Bond Epoxy, 3-layers PE)