Hot Rolled

Hot rolling is a process where steel is rolled at high temperatures, above 1700°F, which is above its recrystallisation temperature. Large steel slabs, billets, or blooms are heated and passed through rollers to achieve the desired shape and thickness. At these temperatures, the steel is easier to form and can be made in larger sizes.

Hot rolled steel has a rougher surface and less precise dimensions compared to cold rolled steel. The surface scaling, formed as the steel cools, can be removed later using acid baths in a process called pickling.

Hot rolled steel is cheaper than cold rolled steel because it is made without delays or reheating, reducing production costs. However, it is less suitable for applications needing a smooth finish or tight dimensional accuracy.