Longitudinal Submerge-Arc Welded (LSAW) Steel Pipes are made from 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. Longitudinal edges of the plates are then tack welded followed by internal and external welds. Pipes manufactured by this process are subjected to expanding operation in order to relieve internal stresses and obtain a perfect dimensional tolerance.LSAW Steel Pipes are widely used in onshore and offshore oil and gas pipelines requiring critical service, high performance and tight tolerances. LSAW pipe are also used in conveyance of flammable & nonflammable liquids, and as structural members in construction projects.

 

Quality Standard: 

● API 5L

● ASTM A53

● ASTM A252

● AWWA C-200

● EN 10217

● EN 10219

 

Size Range: 

● Outer Diameter:

219mm—1820mm (8”-72”) 

● Wall Thickness:

5.0mm—50mm 

● Length:

6,000mm—12,000mm