Stainless Steel Cold Rolled Tube

Cold rolling process involves using hot-rolled steel coil as raw material, removing its oxide skin by pickling, followed by tandem cold rolling. The finished product is rolled hard roll. Due to continuous cold deformation, the cold work hardening increases the strength and hardness of the rolled hard roll while decreasing its plastic index and toughness, hence the stamping performance is deteriorated, only applicable to parts of simple deformation. Rolled hard rolls can be used as raw materials for hot-dip galvanizing plants because the hot-dip galvanizing units are all equipped with annealing lines.