Deep Drawing CRC Cold Rolled Carbon Steel Sheet DC06 For Auto Parts

Cold Rolled Steel; Hot rolled steel coil is used as raw material, and the oxide skin is removed by acid pickling before cold continuous rolling. The finished product is hard rolled coil. The cold work hardening caused by continuous cold deformation makes the strength and hardness of hard rolled coil increase, the toughness and plasticity index decrease, and the stamping performance deteriorates, so it can only be used for simple deformed parts.

The hard rolled coil can be used as the raw material of the hot-dip galvanizing plant, because the hot-dip galvanizing units are equipped with annealing lines. The weight of hard rolled coil is generally 6-13.5 tons, and the inner diameter of steel coil is 610mm.

Generally, continuous annealing (CAPL unit) or bell type furnace shall be used to remove the cold work hardening and rolling stress, so as to reach the mechanical property index specified in the standard. The surface quality, appearance and dimension accuracy of cold rolled steel sheet are better than that of hot rolled steel sheet.

■Stamping steel