What material is the channel steel made of

Channel steel is a carbon structural steel for construction and machinery. It is a section steel with a complex cross-section, and its cross-sectional shape is a groove shape. Channel steel is mainly used in building structure, curtain wall engineering, mechanical equipment and vehicle manufacturing. 

In use, it is required to have good welding, riveting performance and comprehensive mechanical properties.

The raw material billets for channel steel are carbon steel or low-alloy steel billets with a carbon content of not more than 0.25%. The finished channel steel is delivered after hot forming, normalizing or hot rolling. Its specifications are expressed in millimeters of waist height (h) * leg width (b) * waist thickness (d), such as 100*48*5.3, which means that the waist height is 100 mm, the leg width is 48 mm, and the waist thickness is 5.3 mm. Steel, or 10# channel steel. 

For channels with the same waist height, if there are several different leg widths and waist thicknesses, add a on the right side of the model.