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What is cold rolled painted galvanized steel coil
Cold-rolled painted galvanized steel coil is a kind of galvanized steel coil. Steel sheets are classified into two types: hot-rolled and cold-rolled. Cold-rolled sheet is flat, rectangular, and can be directly rolled.
Cold-rolled painted galvanized steel coil is a steel sheet that is further thinned to a target thickness at room temperature. Compared with hot-rolled steel sheet, cold-rolled steel sheet has more accurate thickness, smooth and beautiful surface, and also has various superior mechanical properties, especially in terms of processability. Because cold-rolled raw coils are relatively brittle and hard, and are not suitable for processing, cold-rolled steel sheets are usually required to be annealed, pickled and surface smoothed before being delivered to customers. The minimum thickness of cold rolling is below 0.1--8.0MM, and the thickness of cold rolled steel plate in most factories is below 4.5MM; the minimum thickness and width are determined according to the equipment capacity and market demand of each factory.
Advantages: fast forming speed, high output, and no damage to the coating, can be made into a variety of cross-sectional forms to meet the needs of use conditions; cold rolling can cause great plastic deformation of the steel, thereby improving the yield of the steel point.
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