Cold-rolled steel is widely used in fields such as automobile manufacturing and electrical products. Cold rolling occurs below the recrystallization temperature, but is usually associated with rolling 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 automotive manufacturing and electrical products, etc. Cold rolling occurs below the recrystallization temperature, but is usually associated with the rolling of materials 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 uses low-carbon steel grades, requiring excellent cold bending and welding performance, and a certain degree of stamping ability.

Production Process

Since there is no heating during the production process, defects common in hot rolling, such as pitting and oxide scale, do not exist. Therefore, the surface quality is good, and the finish is high. Cold-rolled products also have high dimensional accuracy, and their performance and structure meet specific requirements such as electromagnetic characteristics and deep drawing ability.

Application Areas

Cold-rolled thin steel sheets are commonly known as cold-rolled thin sheets or cold sheets for short, and are sometimes misspelled. It is made by further cold rolling a hot-rolled steel strip of ordinary carbon structural steel into steel sheets with a thickness of less than 4 mm. Because the rolling process is carried out at room temperature, no oxide scale is generated. Therefore, cold-rolled steel sheets have excellent surface quality and high dimensional accuracy. In addition, after annealing, their mechanical properties and processing properties also exceed those of hot-rolled thin steel sheets. In various fields, especially in the home appliance manufacturing industry, cold-rolled thin sheets are gradually replacing hot-rolled thin sheets.