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Introduction

basic situation
In use, it is required to have good welding, riveting performance and comprehensive mechanical properties. The raw material billets for channel steel are carbon steel or low-alloy steel billets with a carbon content of not more than 0.25%. The finished channel steel is delivered after hot forming, normalizing or hot rolling. Its specifications are expressed in millimeters of waist height (h) * leg width (b) * waist thickness (d), such as 100*48*5.3, which means that the waist height is 100 mm, the leg width is 48 mm, and the waist thickness is 5.3 mm. Steel, or 10# channel steel. For channel steel with the same waist height, if there are several different leg widths and waist thicknesses, a b c must be added to the right of the model to distinguish them, such as 25#a 25#b 25#c, etc.

Classification
Channel steel is divided into ordinary channel steel and light channel steel. The specification of hot-rolled ordinary channel steel is 5-40#. The specifications of hot-rolled flexible channel steel supplied by agreement between the supply and demand parties are 6.5-30#. Channel steel is mainly used in building structures, vehicle manufacturing, other industrial structures and fixed panels, etc. Channel steel is often used in conjunction with I-beam.
Channel steel can be divided into 4 types according to its shape: cold-formed equal-side channel steel, cold-formed unequal-side channel steel, cold-formed inner-coiled channel steel, cold-formed outer-coiled channel.
According to the theory of steel structure, the channel steel wing plate should be stressed, which means that the channel steel should stand upright instead of lying on its stomach.