Cold coils are made from hot-rolled coils, which are rolled at room temperature below the recrystallization temperature, including plates and coils. The ones delivered in sheets are called steel plates, also known as box plates or flat plates; What is delivered in coils is called steel strip, also known as coil plate.

Since there is no heating in the production process, there are no defects such as pitting and iron oxide scale that often occur in hot rolling, and the surface quality is good and the finish is high. Moreover, the dimensional accuracy of cold-rolled products is high, and the performance and structure of the products can meet some special requirements, such as electromagnetic properties, deep drawing properties, etc.

Low carbon steel grades are mainly used, which are required to have good cold bending and welding properties, as well as certain stamping properties.