Cold rolling is to further thin the No.1 steel plate to the target thickness at room temperature. Compared with hot-rolled steel plate, cold-rolled steel plate has more accurate thickness, smooth and beautiful surface, and also has various superior mechanical properties, especially processability. Because the cold-rolled original coil is brittle and hard, it is not suitable for processing, so in general, cold-rolled steel plates are required to be annealed, pickled and leveled before being handed over to customers. The maximum thickness of cold rolling is below 0.1--8.0MM, such as the thickness of cold rolled steel plates in most factories is below 4.5MM; The minimum thickness and width are determined according to the equipment capacity and market demand of each factory.

Stainless steel cold-rolled steel plate is a stainless steel plate produced by cold rolling process. The thickness is not more than 3mm, and the thickness is more than 3mm, which is thick plate. Used to make corrosion-resistant parts, petroleum and chemical pipelines, containers, medical instruments, ship equipment, etc.