Welded Steel Tube

Welded steel tube is a type of steel tubing manufactured by rolling steel strips or plates into a cylindrical shape and then welding the longitudinal or spiral seam. It is widely produced in carbon steel, alloy steel, and stainless steel, with high dimensional accuracy and stable performance.

Common production processes include Electric Resistance Welding (ERW), Submerged Arc Welding (SAW), and laser welding. Compared with seamless steel tubes, welded tubes feature higher production efficiency, lower cost, and more flexible specifications in diameter and thickness.

Welded steel tubes can be further processed by hot-dip galvanizing, painting, or cutting to meet different working conditions. They are extensively used in construction structures, fluid transportation, mechanical engineering, automotive manufacturing, pipeline projects, and furniture frames.

With reliable weld strength and good pressure resistance, welded steel tubes have become one of the most cost-effective tubular products in modern industrial and civil engineering.