steel U-shaped channel steel, also commonly known as hot-rolled U-shaped steel or ordinary channel steel, has a standard U-shaped cross-section and is mainly divided into two categories: hot-rolled U-shaped channel steel and cold-formed U-shaped channel steel. Made from Q235B and Q355B carbon steel, it is formed through hot rolling or cold bending processes, resulting in regular dimensions, high rigidity, and excellent load-bearing capacity. Surface finishes include natural black, hot-dip galvanized, and electro-galvanized, with the corrosion resistance level selected according to requirements.