FERRITIC STAINLESS-STEEL SHEET WITH EXCELLENT NON-RIDGING PROPERTY AND PROCESS FOR PRODUCING SAME

摘要

The present invention focuses on Sn and has as its problem to not only improve the corrosion resistance and rust resistance of Cr-containing ferritic stainless steel but also improve the ridging resistance. The present invention derives the relationship between Ap, which shows the ³-phase rate at 1100°C due to a predetermined ingredient, and Sn in ferritic stainless steel which becomes a dual phase structure of ±+³ in the hot rolling temperature region, applies and adds Sn, and hot rolls the steel to give a total rolling rate of 15% or more in 1100°C or higher hot rolling to thereby obtain ferritic stainless steel sheet which has good ridging resistance, which also has excellent corrosion resistance and rust resistance, and which can be applied to general durable consumer goods: 0.060 ‰¤ Sn ‰¤ 0.634 - 0.0082 �¢ Ap 10 ‰¤ Ap ‰¤ 70