old-rolled sheets are rolled from hot-rolled coils at room temperature below recrystallization temperature.
Cold-rolled sheets are rolled from hot-rolled coils at room temperature below recrystallization temperature.
In the production process, there are no defects such as pitting and oxide scale, which often occur in hot rolling, because there is no heating, and the surface quality is good and the finish is high. Moreover, the size accuracy of cold rolled products is high, and the properties and structure of products can meet some special requirements, such as electromagnetic properties, deep drawing properties and so on.
Cold-rolled sheet steel is the abbreviation of common carbon structural steel cold-rolled sheet, also known as cold-rolled sheet, commonly known as cold-rolled sheet, sometimes miswritten as cold-rolled sheet. The cold plate is a hot rolled strip of common carbon structural steel. After further cold rolling, the cold plate with thickness less than 4 mm is made. Because there is no oxide scale produced during rolling at room temperature, the surface quality of cold plate is good and the dimension accuracy is high. In addition to annealing treatment, the mechanical and technological properties of cold plate are superior to those of hot rolled thin plate. It has been gradually replaced by hot rolled thin plate in many fields, especially in the field of household appliances manufacturing.
Application Area
Cold-rolled steel plate, smooth surface, excellent processing, used in automobiles, refrigerators, washing machines, printing barrels, bicycles and other household appliances, as well as industrial equipment, agriculture, animal husbandry and fisheries, a variety of building materials. With the development of economy, cold rolled steel sheet has been called the necessary material in modern society.
