M.S SPIRAL WELDED PIPE

Mild Steel Spiral Welded Pipe, also known as SSAW (Spiral Submerged Arc Welded) or HSAW (Helical Submerged Arc Welded) pipe, is made by shaping a strip of mild steel into a cylindrical shape and welding it along a continuous spiral seam using the submerged arc welding method.

This welding process allows for huge diameters (up to several meters) while keeping manufacturing equipment manageable. The helical seam distributes stress more uniformly than straight seams, increasing pressure resistance and permitting a reduction in wall thickness of 10-25% under equal pressure settings. MS Spiral Welded Pipes provide considerable material utilization efficiency and cost benefits, such as continuous length manufacturing and reduced raw material waste.

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These pipes are highly customizable—available in various diameters (e.g., 159 mm to over 3000 mm), wall thicknesses (~3–30 mm), and lengths—and can be supplied with tailored surface treatments and end configurations such as FBE, 3PE coatings, plain ends, beveled ends, or flanged ends.​