Flat steel refers to steel bars with a width of 12-300mm, thickness of 3-60mm, and a rectangular cross-section with slightly blunt edges. Flat steel can be finished steel products and also used as billets for welded pipe production and thin plate billets for rolling. Main applications: As finished products, flat steel can be used to make tie rods, tools, and mechanical components. In construction, it serves as structural elements for building frames and staircases.