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LSAW Steel Pipe

Tianjin Wanlei Steel Pipe Co., Ltd is one of the largest manufacturers that produce thick wall and large diameter LSAW steel pipe. More details, please call us!


LSAW steel pipe

LSAW is longitudinally Submerged Arc Welding.

LSAW steel pipe is widely used in Construction of high  strength, high toughness, high quality long-distance oil and gas  pipelines, most of the required large-diameter thick-walled LSAW pipe. According  to the API standard, in large oil and gas pipelines, LSAW pipe is the  only designated pipe type when passing through alpine zone, seafloor and  urban populated areas such as Class 1 and Class 2 areas.

Production Process


Coating Type:

  • Lining — Water Service

    • Cement mortar per AWWA C205

    • Epoxy per AWWA C210

    • Polyurethane per AWWA C222

  • Lining — Sewer Service

    • Ceramaline sewer lining

    • Polyurethane per AWWA C222

  • Coating — Exterior

    • Epoxy per AWWA C210

    • Polyurethane per AWWA C222

    • Tape Wrap System per AWWA C214

    • 3LPE per DIN 30670

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