Channel steel is divided into ordinary channel steel and light channel steel. The specification of hot rolled ordinary channel steel is 5-40#. The specification of hot rolled and variable channel steel supplied by both suppliers and suppliers is 6.5-30#. Channel steel is mainly used in building structure, vehicle manufacturing, other industrial structure and fixed disk cabinet, and channel steel is often used in conjunction with I-steel.
According to the channel shape and can be divided into 4 kinds: cold bending equilateral channels, cold-formed non equilateral channel steel, cold rolled edge channels, the cold bending edge channels
According to the theory of steel structure, it should be the force of the channel steel wing plate, that is to say the channel steel should be standing, not on the ground.
The main specifications of the channel steel are height (H), leg width (b), waist thickness (d), etc.
At present, the domestic channel steel specifications are from 5 to 40, that is, the corresponding height is 5 - 40cm.
Supply of various material channel steel 300 Series 400 series
At the same height, light channel steel is narrower, thin and lighter than ordinary channel steel. No. 18 - 40 is a large channel steel, and channel 5 - 16 is medium channel steel. The imported channel steel is marked with the actual specifications and related standards. Steel import and export orders generally is identified in the corresponding (carbon steel or low-alloy steel), to use the required specifications. In addition to the specification number, the channel steel has no specific composition and performance series.
The delivery length of the channel is divided into two kinds of scale and scale, and the allowable value is stipulated in the corresponding standard. The length selection range of domestic channel steel is divided into 5 - 12M, 5 - 19m and 6 - 19m according to the specification number. The selection of the length of the imported channel steel is generally 6 - 15m. The specification of channel steel is mainly expressed by the dimensions such as height (H), leg width (b), waist thickness (d) and so on. At present, the specifications of the homemade channel steel are from 5 to 40, that is, the corresponding height is 5 40cm.