Galvanized Channel Steel Specifications Setting

The specifications of channel steel are mainly represented by dimensions such as height (h), flange width (b), and web thickness (d). Domestic channel steel specifications range from 5 to 40 numbers, corresponding to heights of 5 to 40 cm.

At the same height, light-weight angle steel has narrower legs, thinner waist, and lighter weight compared to standard angle steel. Sizes 18-40 represent large angle steel, while sizes 5-16 are medium angle steel. Imported angle steel is marked with actual dimensions and relevant standards. The ordering of angle steel for import/export usually focuses on the required specifications during use, following the determination of the corresponding carbon steel (or low-alloy steel) grade. Besides the size numbers, angle steel does not have specific chemical composition or performance series.

The delivery length of channel steel is divided into fixed length and multiple length, with permissible tolerance values specified in the corresponding standards. The length selection range of domestic channel steel varies depending on the specification number, with three options: 5-12m, 5-19m, and 6-19m. The length selection range of imported channel steel is generally 6-15m.