Often used in the steel industry, as opposed to hot rolled coil. It refers to the steel strip which is rolled into a certain thickness directly by a roll and rolled into a whole roll by a winder at normal temperature. Compared with hot rolled coil, cold rolled coil surface bright, high finish, but will produce more internal stress, often after cold rolling annealing treatment.
Because there is no heating in the production process, there is no pitting and oxide sheet defects that often occur in hot rolling, and the surface quality is good and the finish is high. Moreover, the dimensional precision of cold-rolled products is high, and the properties and organization of the products can meet some special requirements, such as electromagnetic properties, deep drawing properties, etc.