Cold Rolled Steel

Cold rolled steel (abbreviated as CRS) refers to steel ingots that are continuously rolled by a cold rolling mill into coils or sheets of the required thickness. Cold rolled steel surfaces are unprotected and can easily oxidize when exposed to air, especially in humid environments, resulting in dark red rust marks. Protective measures such as painting, plating, or other treatments should be applied during use. Steel sheets with high silicon content are brittle and have low plasticity, so they need to be preheated to 200°C before cold rolling. Since cold rolled steel are not heated during production, defects commonly seen in hot-rolled sheets, such as mill scale and oxide spots, are absent, resulting in good surface quality and high smoothness.

At the same time, cold rolled products have high dimensional accuracy, and their performance and microstructure can meet certain special requirements, such as deep drawing properties and electromagnetic properties.

Mechanical Properties

Surface Treatment

● Powder Coating

● Silkscreen

● Laser marking

Applications

Cold rolled steel has excellent properties. Through cold rolling, thinner and more precise steel strips and sheets can be produced with high flatness and surface smoothness. The surface of cold rolled steel is clean and bright, easy to coat or plate, available in various types, and widely applicable. They also feature high stamping performance, non-aging, and low yield strength. Therefore, cold rolled steel has extensive applications, mainly in the automotive, printed tin can, construction, building materials, and bicycle industries, and is also the preferred material for producing coated steel sheets.