Commonly used in the steel industry, different from hot-rolled coils. It refers to a steel strip that is directly rolled into a certain thickness using a rolling roller at room temperature and rolled into a whole coil using a winding machine. Compared to hot-rolled coils, cold-rolled coils have a bright surface and high smoothness, but they generate more internal stress and are often annealed after cold rolling.
Production process
Due to the lack of heating during the production process, there are no defects such as pits and oxide scales that often occur during hot rolling. The surface quality is good and the smoothness is high. Moreover, the dimensional accuracy of cold rolled products is high, and the performance and structure of the products can meet some special usage require
ments, such as electromagnetic performance, deep drawing performance, etc.
Specifications
The thickness is 0.2-4mm, the width is 600-2 000mm, and the steel plate length is 1200-6 000mm.
Grades Q195A-Q235A, Q195AF-Q235AF, Q295A (B) - Q345 A (B); SPCC、SPCD、SPCE、ST12-15; DC01-06
purpose
Cold rolled coil sheets have a wide range of applications, such as automotive manufacturing, electrical products, locomotives and vehicles, aviation, precision instruments, food cans, etc.