Study on processing and properties of 430 ferritic stainless steel coil

Abstract:

For improving properties of 430 ferritic stainless steel coil, effect of chemical composition, equiax crystal ratio of cast slab,hot-rolling processing, annealing of hot coil on microstrutures and properties of steel were investigated and anlyzed. By adding bit aluminium, decreasing superheat of metal in tundish and strengthen eletromagnetic stirring simultaneously, the microstructure of cast slab could be improved. The experimental results show that the optimal heat treatment system could be identified under the contrast test in different heat treatment system; simultaneously, when the annealing temperature is 950～1 000 ℃,the finished steel plate could show be the excellent mechanics and process properties.