What's the difference between stainless steel cold rolled plate and hot rolled plate?
Cold rolling: using hot rolled steel coil as raw material, the cold rolling is carried out after removing the oxide skin by pickling, and the finished product is rolled hard. The cold work hardening caused by continuous cold deformation makes the strength and hardness of the rolled hard roll rise and the ductility index decline,Therefore, the stamping performance will deteriorate and can only be used for parts with simple deformation. The hard rolls can be used as raw material for hot-dip galvanizing plants, because the hot galvanizing units are equipped with annealing lines. The rolling rolls are usually in 6~13.5 tons and the coils are at room temperature,Continuous rolling of hot rolled pickled coils. The inner diameter is 610mm.Product features: because there is no annealing treatment, its hardness is very high (HRB greater than 90), mechanical processing performance is extremely poor, can only be simple and directional less than 90 degrees bending processing (perpendicular to the direction of coiling)
Hot rolling is made from slabs (mainly continuous billets), which are heated by roughing mills and finishing mills. The hot steel strips coming out of the last mill are cooled to a set temperature by laminar flow,The coiling machine rolled strip steel roll cooled, according to the different needs of users with different finishing line (flat, straightening, transverse or longitudinal, inspection, weighing, packing and marking etc.) and become steel processing,Flat steel product volume and slitting. A simple, a billet after heating (TV is that burning red hot steel block) refined over several rolling cut edge correction become a plate, called the hot rolling.
