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What are the differents between cold-rolled steel coils and hot-rolled steel coils?

Number of visits: Date:2016-12-09

From the material, the composition of the two galvanized sheet are basically similar. While the cold-rolled steel coils are thinner than hot galvanized sheet. Thus its surface quality is better, process is more complex and price will be higher than hot-rolled steel coils.

From the process, the steel from the slab to send hot rolling, rolled into a certain thickness of the plate, such as the thickness of 10mm. If the user of the plate surface, thickness, mechanical strength, no higher requirements, can be finished processing, Such as galvanized, direct sale, is the hot plate.If the plate has a higher requirement, then the hot-rolled plate after the cold-rolled line to send again processing, pickling, annealing, re-rolling process, Get thinner, smooth surface, better mechanical properties of cold-rolled steel coils.

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