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Difference Between Hot And Cold Rolled

Nov 12, 2021

Cold Rolled

Using "stainless steel strip/coil" as raw material, it is rolled into a product by a cold rolling mill at room temperature. Conventional thickness <~3mm>, width <100mm~2000mm>; "Cold rolled steel strip/coil" has the advantages of smooth surface, flatness, high dimensional accuracy, and good mechanical properties. 

Most of the products are in coils and can be processed into coated steel plates; Cold-rolled stainless steel strip/coil production process: pickling→normal temperature rolling→process lubrication→annealing→flattening→fine cutting→packing→to the customer.

Hot Rolled

The hot rolling mill produces strip steel with a thickness of 50mm-1200mm in width.

Hot-rolled steel strip/sheet has the advantages of low hardness, easy processing, and good ductility.

The production process of hot-rolled stainless steel strip/coil: pickling→high temperature rolling→process lubrication→annealing→flattening→precision cutting→packing→arriving at the customer.

Difference Between Hot and Cold Rolled

The cold-rolled steel strip has good strength and yield ratio, and the hot-rolled steel strip has good ductility and toughness.

The surface quality, appearance, and dimensional accuracy of cold-rolled steel strips are better than those of hot-rolled steel strips.

The thickness of cold-rolled steel strips is ultra-thin, while the thickness of hot-rolled steel strips is relatively large.