It is made by rolling low-carbon carbon structural steel or low-alloy structural steel strips into tube blanks at a certain spiral angle (called forming angle), and then welding the tube seams. It can be produced with narrower strip steel Large diameter steel pipe.

Usage: Spiral welded pipes are mainly used in water supply projects, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction in China.

For liquid transportation: water supply and drainage.

For gas transportation: coal gas, steam, liquefied petroleum gas.

For structural purposes: piling pipes, bridges; pipes for docks, roads, building structures, etc.