FERRITIC STAINLESS STEEL HAVING EXCELLENTRIDGING RESISTANCE AND EXCELLENT IN SURFACE QUALITY

摘要

The present invention relates to ferritic stainless steel with excellent ridging resistance. The ferritic stainless steel has enhanced ridging resistance by adjusting a content of elements composing of the content of elements composing of molten steel for the production of stainless steel. According to an embodiment of the present invention, the ferritic stainless steel with excellent ridging resistance and formability comprises: 12.5-18.5 wt% of Cr; 0.001-0.025 wt% of C; 0.01-0.05 wt% of N, 0.05-0.4 wt% of Ti; 0.01-0.2 wt% of Al; 0.01-0.5 wt% of Si; 0.01-0.5 wt% of Mn; 0.01-0.5 wt% of Cu; 0.001-0.5 wt% of Mo; 0.01-0.5 wt% of Nb; 0.01-0.5 wt% of Ni; and the remaining consisting of Fe and inevitable impurities. The ferritic stainless steel satisfies formula (1); wherein formula (1), the precipitation amount of TiN in vol% equals to 47N+102Ti×N+10C+0.39. N, Ti, and C in the formula represent the content of each element in wt%.