Cold Rolled Coil Difference

Coil plate is a kind of plate in steel, which is actually a thin steel plate that is long and narrow and supplied in rolls.
The volume and plate are almost a cut package
Chilled coil is hot rolled coil through pickling and cold rolling. It can be said that it is a kind of cold rolled sheet coil.
Cold rolled coil (annealed) : hot rolled coil is obtained by pickling, cold rolling, hood annealing, leveling, (finishing).
There are three main differences between the two:
1. In appearance, the general chilled coil is a little faint.
2. surface quality, structure, dimensional accuracy and other cold-rolled plate is better than cold-rolled plate.
3. in terms of performance, due to the cold-rolled coil directly obtained by the cold-rolled process, the cold-rolled coil occurs work hardening during cold rolling, resulting in an increase in yield strength and residual part of the internal stress, and the external performance is relatively "hard", so it is called cold-rolled coil.
Therefore, the yield strength: the cold-rolled coil is greater than the cold-rolled coil (annealed), which makes the cold-rolled coil (annealed) more conducive to stamping.
Generally, the default delivery condition of cold rolled coil is annealed.