Channel steel is a long strip of steel with a groove-shaped cross-section. It is a carbon structural steel used in construction and machinery. It is a profile steel with a complex cross-section. Channel steel is mainly used in building structures, curtain wall engineering, mechanical equipment and vehicle manufacturing.
In the environment where channel steel is used, it is required to have good welding, riveting performance and comprehensive mechanical properties. The raw material billet for the production of channel steel is carbon steel or low alloy steel billet with a carbon content of no more than 0.25%.
The finished channel steel is delivered in a hot-formed, normalized or hot-rolled state. The specifications are expressed in millimeters of waist height (h) * leg width (b) * waist thickness (d). For example, 100*48*5.3 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 channel steel with the same waist height, if there are several different leg widths and waist thicknesses, it is necessary to add a b c to the right of the model number to distinguish them, such as 25#a 25#b 25#c, etc.
Channel steel is divided into ordinary channel steel and light channel steel. The specifications of hot-rolled ordinary channel steel are 5-40#. The specifications of the hot-rolled flexible channel steel supplied by agreement between the supplier and the buyer are 6.5-30#. Channel steel is mainly used in building structures, vehicle manufacturing, other industrial structures and fixed panels, etc., and is often used in conjunction with I-beams.
Channel steel can be divided into four types according to the shape: cold-formed equal-edge channel steel, cold-formed unequal-edge channel steel, cold-formed inner-curled channel steel, and cold-formed outer-curled channel steel.