Hot rolled steel is a type of steel that is formed using the hot rolling process at a temperature above its recrystallization temperature. Steel is easier to shape at this elevated temperature. Compared to cold rolled steel, hot rolled steel typically does not require any post-forming heat treatment. Hot rolled steel usually has more mill scale than cold-rolled steel. Uses: Hot rolled products like hot rolled steel bars are used in the welding and construction trades to make railroad tracks and I-beams, for example. Hot rolled steel is used in situations where precise shapes and tolerances are not required.