SSAW Pipe

SSAW (Spirally Submerged Arc Welding) steel pipe, also known as spiral welded pipe, is manufactured from hot-rolled steel coils that are spirally formed and welded by double-sided submerged arc welding. The spiral weld seam is uniformly distributed along the pipe body, enabling the same coil to produce various diameters with wide material adaptability. The spiral forming process allows the weld to avoid principal stress directions, resulting in favourable stress distribution. It is widely used in long-distance oil and gas pipelines, waterworks, piling foundations, and steel structures, making it an ideal choice for large-diameter fluid transmission and cost-effective structural applications.