Effect of cold and annealing process on deep-drawing of SUS430 ferrite stainless steel

Chemical composition,inclusions,billet equiaxed rate,hot-rolling,cold rolling and annealing process have great impacts on deep-drawing properties of the materials. Combined with the actual technology level of hot-rolled SUS430 stainless steel in Shandong Taishan Iron & Steel Group Co. Ltd.,the study focused on cold-rolled and annealing process. Through comparative analysis,it is concluded that annealing hot-rolled sheet,followed by pickling and a cold rolling with a reduction rate of 80%-85% can make the cold rolled annealed sheet product has excellent deep drawing properties.