What's the difference between cold rolling and hot rolling of stainless steel plate?
Hot rolling is relative to cold rolling, cold rolling is performed under recrystallization temperature, while hot rolling is rolling above recrystallization temperature.
The free torsion rigidity of hot rolled steel is higher than that of cold rolled steel, so the torsion resistance of hot rolled steel is better than that of cold rolled steel.
Cold rolling and hot rolling are different processes, and cold rolling is usually made by longitudinal rolling. Cold rolling process usually includes preparation of raw materials, pickling, rolling, degreasing, annealing (heat treatment), finishing and so on. Cold rolling takes hot rolling product as raw material, and the raw material should be removed before cold rolling so as to ensure the surface cleanness of cold rolling products.
