Cold-rolled sheet is produced from hot-rolled coil at room temperature below the recrystallization temperature. Cold-rolled sheet is widely used in fields such as automobile manufacturing and electrical products. Cold rolling occurs below the recrystallization temperature, but is usually associated with the rolling of materials at room temperature.

Product Overview

Cold-rolled steel is produced from hot-rolled coils at room temperature below the recrystallization temperature. Cold-rolled steel is widely used in automobile manufacturing and electrical products, etc. Cold rolling occurs below the recrystallization temperature but is typically associated with rolling material at room temperature.

Specifications

1. Minimum thickness is 0.2-4mm, width is 600-2000mm, and steel plate length is 1200-6000mm.

2. Grades Q195a-Q235a, Q195af-Q235af, Q295a(b)-Q345 A(b); SPCC, SPCD, SPCE, ST12-15; DC01-06

3. Performance: Mainly using low-carbon steel grades, requiring excellent cold bending and welding performance, as well as a certain degree of stamping capability.

Production Process

Since there is no heating during the production process, defects common in hot rolling, such as pitting and oxide scales, are absent. Therefore, the surface quality is good, and the finish is high. Cold-rolled products also have higher dimensional accuracy, and their properties and structure meet specific requirements such as electromagnetic characteristics and deep drawing capability.

Application Areas

Cold-rolled thin steel sheets are often called cold-rolled thin plates or simply cold plates, sometimes misspelled. It is made from hot-rolled steel strips of ordinary carbon structural steel, further cold-rolled into steel sheets less than 4 mm thick. Because the rolling process is carried out at room temperature, no oxide scale is produced. Therefore, cold-rolled steel sheets have excellent surface quality and high dimensional accuracy. In addition, after annealing, its mechanical properties and processing performance also exceed hot-rolled thin steel sheets. In various fields, especially in the home appliance manufacturing industry, cold-rolled thin plates are gradually replacing hot-rolled thin plates.