Cold Rolled Sheet, also known as cold rolled sheet, is a product produced by rolling hot-rolled coils at room temperature below the recrystallization temperature. It is widely used in automotive manufacturing, electrical products, and more. Cold rolling refers to the rolling at the recrystallization temperature, but is generally understood as the rolling of materials at normal temperature.
The production process, without heating, eliminates common defects such as lumps and iron oxide scale that often occur in hot rolling, resulting in excellent surface quality and high brightness. Moreover, cold rolled products offer high dimensional accuracy, and their properties and structure can meet specific application requirements, such as electromagnetic properties and deep drawing performance.
Galvanized steel strip products are primarily used in industries such as construction, light industry, automotive, agriculture, aquaculture, and commerce. In the construction sector, they are mainly used to manufacture corrosion-resistant industrial and residential roof panels, roof gratings, etc. The light industry utilizes them to produce household appliance casings, residential chimneys, kitchenware, etc. The automotive industry mainly uses them to manufacture corrosion-resistant components for cars. In agriculture, aquaculture, and fishery, they are primarily used for grain storage and transportation, as well as for freezing equipment for meat and aquatic products. In commerce, they are mainly used for material storage and packaging tools.
Cold-rolled thin steel sheet, also known as cold rolled sheet or simply cold plate, is a shorthand for the cold-rolled version of ordinary carbon structural steel. It is sometimes mistakenly written as cold扎板. Cold plate is made by further cold rolling hot-rolled steel strips of ordinary carbon structural steel to achieve sheet thicknesses less than 4mm. Since it is rolled at room temperature, no iron oxide scale is produced, resulting in a high surface quality and dimensional accuracy. Additionally, with annealing treatment, it boasts superior mechanical and process properties compared to hot-rolled thin steel sheet. In many fields, particularly in the home appliance manufacturing sector, it has gradually replaced hot-rolled thin steel sheet.
