Channel steel is a long strip of steel with a groove-shaped section. Channel steel is a carbon structural steel for construction and machinery. Channel steel is mainly used in building structures, curtain wall engineering, mechanical equipment and vehicle manufacturing. It is required to have good welding, riveting performance and comprehensive mechanical properties in use. The raw material billets for producing channel steel are carbon-structured steel or low-alloy steel billets with a carbon content not exceeding 0.25%. The finished channel steel is delivered in hot-formed, normalized or hot-rolled state.

Channel steel can be divided into 4 types according to shape: cold-formed equilateral channel steel, cold-formed unequal-sided channel steel, cold-formed inner-curled channel steel, and cold-formed outer-curved channel steel