Galvanized Channel Steel Specifications Setting

The specifications of channel steel are primarily indicated 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 I-beams are narrower, thinner, and lighter than standard I-beams. Sizes 18-40 are considered large I-beams, while sizes 5-16 are medium-sized. Imported I-beams are marked with actual dimensions and relevant standards. Orders for I-beams for import/export are typically based on the specified carbon structural steel (or low-alloy steel) grade and the required specifications for use. Besides the size number, I-beams do not have a specific composition or performance series.

The delivery length of channel steel is available in fixed and multiple sizes, with allowable tolerances specified in the relevant standards. The length selection range for domestic channel steel varies according to the specification number, typically including 5-12m, 5-19m, and 6-19m options. The length selection range for imported channel steel is generally 6-15m.