What Is Cold Rolled Steel?

GNEE New Material Cold Rolled Steel

The hot-rolled steel coil is used as raw material for cold-rolled steel. After pickling to remove the oxide, cold continuous rolling is carried out. The finished product is the cold rolled coils. Due to the cold hardening caused by continuous cold deformation, the strength and hardness of the rolled hard roll increase, and the toughness and plastic index decrease, so the stamping performance will deteriorate and can only be used for simple deformed parts. Cold rolling is processed from hot rolled plates at room temperature. Although the steel plate will also heat up during the processing because of rolling, it is still called cold rolling.

Advantages

1. The cold-rolled steel has uniform thickness and commercial scale, which can fully meet the requirements of high-precision public service.

2. Extremely thin strips that can not be produced by hot rolling can be obtained, and the thin can reach 0.001mm or less.

3. The appearance of cold-rolled steel coil is superior in quality, and there is no pitting, pressing into the oxide sheet, and other defects that are often presented in hot-rolled sheet rolls, and according to the user's request, the sheet rolls with different surface roughness can be produced to facilitate the processing of the next process.

4. Cold rolled sheet coil length and excellent mechanical function and process function, higher strength, lower yield limit, outstanding deep drawing function.

5. Can complete high-speed rolling and full continuous rolling, with a high yield.

What Is Cold Rolled Steel Used For?

Because it is rolled at room temperature, no oxide sheet is produced, therefore, the surface quality of the cold plate is good, the dimensional accuracy is high, coupled with annealing treatment, its mechanical properties and technological properties are better than the hot-rolled sheet steel, in many fields, especially in the field of home appliance manufacturing, has gradually replaced the hot-rolled sheet steel with it.

Cold-rolled steel is widely used, such as automobile manufacturing, electrical products, rolling stock, aviation, precision instruments, food cans, and so on. Cold-rolled steel sheet is the abbreviation of ordinary carbon structural steel cold-rolled sheet, also known as cold-rolled sheet, commonly known as cold plate, sometimes mistakenly written as cold tie plate. The cold plate is made of ordinary carbon structural steel hot rolled steel strip, after further cold rolling to make a thickness of less than 4mm steel plate.