Steel coil, also known as coil steel. The steel is rolled by hot pressing and cold pressing. In order to facilitate storage and transportation, convenient for all kinds of processing (such as processing into steel plate, steel strip, etc.) forming coil is mainly hot rolled coil and cold rolled coil. Hot rolled coil is the processed product of the billet before recrystallization. Cold rolled coil is the follow-up process of hot rolled coil. The general weight of steel coil is about 15-30T

The hot-rolled steel coil is made of continuous casting slab or pre-rolled slab as raw material, heated by a walking heating furnace, descaled by high-pressure water, and then entered into the rough rolling mill. Computer-controlled rolling, after final rolling, laminar cooling (computer-controlled cooling rate) and coiling by a coiler become straight rolls.