U-shaped steel is a type of steel with a U-shaped cross-section, primarily composed of iron and carbon, with the addition of other alloying elements. It is used in construction and industrial production. It is typically galvanized steel with rust-resistant properties and is manufactured through a hot-dip galvanizing process. U-shaped steel comes in various sizes, such as U50, U100, and U250, all conforming to international production standards.