SSAW stands for Spiral Submerged Arc Welded, which is a steel pipe manufactured through a spiral welding process. SSAW steel pipes are typically made from hot-rolled steel sheets that are then rolled into tubular shapes through a spiral welding process. This welding process makes SSAW steel pipes have higher welding quality and better welding performance. SSAW steel pipes are widely used in oil and natural gas transmission pipelines, steel structure engineering, hydraulic engineering, chemical equipment and other fields. It has high strength and corrosion resistance and is suitable for use in harsh environments. The production process of SSAW steel pipe is complex, but it can produce large diameter and thick wall steel pipes, so it has important application value in some occasions with special requirements.