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LSAW/SSAW Pipe

  • Shape & Use: Large-diameter welded pipes. Designed for major infrastructure projects like long-distance water/oil pipelines and heavy structural piling.

  • Manufacturing Process:

    • LSAW (Longitudinal Submerged Arc Welded): Thick steel plates are pressed into a ‘U’ shape, then an ‘O’ shape, and welded along a straight longitudinal seam.

    • SSAW (Spiral Submerged Arc Welded): Strip steel is rolled in a helix/spiral shape and welded along the spiral seam, allowing for very large diameters from narrower steel coils.

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LSAW pipe is produced by molding steel plates to a cylinder and joining the ends together by welding in a straight line.

Standard: GB/T30063, ASTM A252, ASTM A672, API 5L, EN10219

Grade: Q235B, Q355, A36, S235JR, S355

Out diameter: 406-1422 mm

Wall thickness:8-50 mm

SSAW pipe is formed by rolling and welding steel strip in a way that the pivotal direction is oblique to the axis or pipe center, making weld seam in a spiral line.

Standard: GB/T9711, 3091, ASTM A1005, API 5L, EN10219

Grade: Q235B, Q355, S235JR, S355

Out diameter: 219-3600 mm

Wall thickness: 4-30 mm

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Grandbase Steel

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Based on the high quality and complete after-sales service, our products have been exported to more than 50 countries and regions, serving for more  than 800 customers.

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WELCOME TO CONTACT US

we are always ready to provide you with better quality and services. Welcome to contact us or visit our company and factory in the following ways

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