Spiral Welded Steel Pipe: Features, Specifications & Industrial Applications
Spiral welded steel pipe, also known as SSAW pipe, is manufactured by rolling steel coils into spiral shapes and continuous submerged arc welding. Available in Q235B, Q355B, X42, X52, X60 grades, these pipes cover large outer diameter ranges from 219mm up to 3800mm, with customizable wall thickness. Compared with ERW steel pipe and seamless steel pipe, spiral welded pipe delivers outstanding cost performance for large-diameter pipeline projects.
The unique spiral welding structure evenly distributes stress across the pipe body, bringing excellent pressure resistance and bending performance. Anti-corrosion treatments including 3PE, 2PE, epoxy coal tar paint can be applied on pipe surface to resist rust and erosion in underground, marine and wet environments. Strict non-destructive testing ensures every pipe meets international standards like API 5L, GB/T 9711.
Widely used for water supply & drainage pipelines, oil and natural gas transmission, foundation piling, bridge construction, sewage treatment and municipal engineering. As a trusted spiral welded steel pipe supplier, BAOLF STEEL GROUP provides customized length, coating and marking services for global buyers.