Specification Setting Of Channel Steel

The specifications of the channel steel are mainly expressed by the dimensions of height (h), leg width (b), waist thickness (d), etc., and the specifications of the domestic channel steel are from 5-40, that is, the corresponding height is 5-40cm.
At the same height, light channel steel has narrower legs, thinner waist and lighter weight than ordinary channel steel. No. 18-40 is a large channel steel, and No. 5-16 is a medium channel steel. The imported channel steel shall be marked with actual specifications, dimensions and relevant standards. The import and export orders of channel steel are generally based on the specifications required in use after determining the corresponding carbon bonded steel (or low alloy steel) steel number. In addition to the specification number, channel steel has no specific composition and performance series.
The delivery length of channel steel is divided into two kinds: fixed length and double length, and the tolerance value is specified in the corresponding standard. The length selection range of domestic channel steel is divided into 5-12m, 5-19m and 6-19m according to different specifications. The length selection range of imported channel steel is generally 6-15m.