1. Definition:

Cold Rolled Coil (CRC) is a type of flat-rolled steel product that is produced by cold rolling hot rolled steel at room temperature. This process involves passing the hot rolled steel through rollers at ambient temperatures to achieve desired thicknesses and surface qualities. The result is a product with a smooth, high-quality surface and precise dimensional accuracy.

2. Raw Materials Used in CRC Production:

• Hot Rolled Steel (Base Material): CRC production starts with hot rolled steel, which is steel that has been rolled at high temperatures. Hot rolled steel serves as the base material for cold rolling.

• Iron Ore: The primary raw material for producing steel is iron ore, which is processed in a blast furnace to produce molten iron. This iron is then converted into steel through various methods, including basic oxygen steelmaking or electric arc furnaces.

• Scrap Steel: Recycled steel scrap is used as an additional raw material in steelmaking processes, helping to reduce costs and environmental impact.

• Alloying Elements: To achieve specific properties, alloying elements such as carbon, manganese, chromium, nickel, and others are added to the steel during the manufacturing process. These elements enhance strength, hardness, and resistance to corrosion.

• Fluxes and Additives: Various fluxes and additives are used in the steelmaking process to remove impurities and control the composition of the steel.