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Channel Steel

Channel steel is a type of long steel with a groove-shaped cross-section, typically processed through hot rolling or cold bending. Its cross-section resembles the shape of "[", consisting of a web and two flanges on either side. Based on manufacturing processes, it can be classified into hot-rolled channel steel (such as the [20 model in GB/T 706) and cold-formed channel steel (such as C-channel). Specifications are expressed as web height × flange width × web thickness (e.g., [100×48×5.3). Channel steel features high unidirectional bending resistance and ease of assembly and connection. It is widely used in building steel structures (beam-column systems, industrial roof frames), mechanical manufacturing (equipment frames), and vehicle and ship construction (frame structures). It can function as an individual load-bearing component or be welded into composite cross-section members such as I-beams or box columns, making it a vital material for structural support and load-bearing in engineering applications.

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