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 hot-rolled variable channel steel supplied by agreement between the supply and demand parties are 6.5-30#. Channel steel is mainly used in building structures, vehicle manufacturing, other industrial structures and fixed cabinets, etc. Channel steel is often used in conjunction with I-beams.

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

According to the theory of steel structure, the channel steel wing plate should bear the force, that is, the channel steel should stand up, not lie down.