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Cold rolling: hot rolled steel coil is used as raw material, the oxide skin is removed by pickling, and the finished product is rolled hard coil. Due to the cold work hardening caused by continuous cold deformation, the strength and hardness of rolled hard coil increase, and the toughness and plastic index decrease, so the stamping performance will deteriorate, and it can only be used for simple deformed parts. Hard rolling coil can be used as raw material for hot dip galvanizing plant because hot dip galvanizing units are equipped with annealing line. The rolling hard coil weight is generally 6~13.5 tons. The hot rolling pickling coil is rolled continuously at room temperature. The inner diameter is 610mm.

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Cold rolled strip is widely used, such as automobile manufacturing, electrical products, rolling stock, aviation, precision instruments, canned food, etc. Cold rolled sheet steel is the abbreviation of common carbon structural steel cold rolled sheet, also known as cold rolled sheet, commonly known as cold plate, sometimes mistakenly written as cold tied sheet. Cold plate is made of ordinary carbon structural steel hot rolled steel strip, after further cold rolling into a thickness of less than 4mm steel plate. Due to rolling at room temperature, does not produce iron sheet, therefore, cold plate surface quality, high dimensional accuracy, coupled with annealing treatment, its mechanical properties and process properties are better than hot rolled thin steel sheet, in many fields, especially in the field of home appliance manufacturing, has gradually replaced hot rolled thin steel sheet.

The steel described provides stamping, swing shearing, leveling, laser cutting, laser welding and strip processing, and we also have a professional logistics team to provide you with a full range of services.

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