The channel steel is a long strip of steel with a groove shape. The channel steel is a carbon steel structural steel for construction and machinery. It is a section steel with a complex section and has a trough shape. Channel steel is mainly used in building structures and vehicle manufacturing. It is required to have good welding, riveting performance and comprehensive mechanical properties in use. The raw material billet of the channel steel is a carbon steel or a low alloy steel billet having a carbon content of not more than 0.25%. Finished channel steel is delivered by hot forming, normalizing or hot rolling [1]. The specifications are expressed in millimeters of waist height (h) * leg width (b) * waist thickness (d), such as 120 * 53 * 5, indicating a waist height of 120 mm, a leg width of 53 mm, and a waist thickness of 5 mm. Steel, or 12# channel steel. If the waist height is the same, if there are several different leg widths and waist thicknesses, you need to add abc to the right side of the model to distinguish it, such as 25a# 25b# 25c#.
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