Cold rolled steel strip and hot rolled steel strip are two common types of steel processing. The main differences between them is in two aspects: Firstly, the production process is that cold rolled steel strip is rolled and processed at normal temperature state, while hot rolled steel strip is rolled and processed under high temperature conditions. Cold rolled steel strip is cold deformed by cold rolling mills, while hot rolled steel strip is rolled by heating the billets to a high temperature in hot rolling mills. Secondly, in terms of material characteristics, cold-rolled steel strip steel has higher surface flatness and dimensional accuracy, better surface finish and higher mechanical properties, but slightly lower plasticity. Hot-rolled steel strip has better plasticity and mach-inability, but higher surface roughness and slightly worse dimensional accuracy than cold-rolled strip.

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