All About Spiral Welded Pipe Process You Need To Know
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- Jul 11,2026
Summary
An article takes you to understand all the processes involved in the production of spiral welded pipes
Thanks to their unique manufacturing process and large-diameter capabilities, spiral-welded steel pipes play an irreplaceable role in long-distance natural gas transmission pipelines, urban gas distribution networks, and water conservancy projects. This article will provide you with a comprehensive overview of the entire production process for spiral-welded steel pipes, from steel strip to finished product. Understanding this process is crucial for engineers, project managers, and procurement specialists in evaluating the quality and reliability of these products.
Process Overview: How Are Spiral-Welded Steel Pipes Made?
The core principle of Spiral Submerged Arc Welded Pipe (SSAW or SAWH) is to coil the steel strip at a certain angle and use double-sided submerged arc welding (SAW) technology to produce the pipe at the joint.
Unlike straight seam welded pipes, the welds of spiral welded pipes are distributed in a spiral pattern on the surface of the pipe body. This feature enables the production of large-diameter pipes using narrow steel strips, with strong production flexibility, especially suitable for mass production of large-diameter pipelines.
Raw Material Preparation And Testing
Spiral welded pipe production mainly uses hot-rolled steel coils (or steel plates) as raw materials, supplemented by welding wire and flux. The quality of raw materials directly determines the performance and service life of the final product.
1. Incoming Inspection of Steel Coils/Steel Plates
After raw materials arrive at the plant, they must undergo a series of rigorous physical and chemical property tests; only steel strips that fully meet (or exceed) the specified standards may be approved for production. These tests include:
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