Cold rolled steel is produced from hot rolled coil (HRC) as follows: Hot rolled steel is passed through a pickling line to remove the rust layer on the surface, then it is cleaned and coated with an oil layer to protect the surface.
Hot rolled steel after pickling and oiling is called pickled and oiled (PO) steel. Pickled and oiled steel is then sent to the cold rolling line to produce cold rolled steel products with custom sizes.
Cold rolled steel products have many outstanding characteristics, so the application of cold rolled steel in the construction industry is very diverse. In addition to being used as a semi-finished product to produce galvanized steel, cold-rolled steel, or colored cold-rolled steel, due to its high durability and specific properties requiring good load-bearing characteristics, cold rolled steel also meets the requirements of many applications such as: