Cold-rolled sheet is a product made of hot-rolled coil as raw material and rolled at room temperature below the recrystallization temperature. It is mostly used in automobile manufacturing and electrical products. The cold plate is a hot-rolled strip of ordinary carbon structural steel, which is further cold-rolled into a steel plate with a thickness of less than 4mm. Due to rolling at room temperature, no iron oxide scale is produced, so the cold plate has good surface quality and high dimensional accuracy. Coupled with annealing treatment, its mechanical properties and process properties are superior to those of hot-rolled thin steel plates.
