Ferritic Stainless Steel Sheet And Exhaust Component

Abstract: Disclosed is a ferritic stainless steel sheet which has a chemical composition that contains, in mass%, 0.001% to 0.030% of C, 0.01% to 1.00% of Si, 0.01% to 0.90% of Mn, 0.010% to 0.100% of P, 0.0001% to 0.0100% of S, 16.0% to 20.0% of Cr, 1.00% to 1.50% of Cu, 0.02% to 0.50% of Mo, 0.050% to 0.300% of Ti, 0.050% to 0.200% of Nb, 0.003% to 0.500% of Al, 0.01% to 0.30% of Ni, 0.0001% to 0.0050% of B, 0.010% to 0.500% of V, 0.001% to 0.020% of N, and optional elements, with the balance being made up of Fe and impurities, while satisfying (830 = 250Cu + 2216Nb + 3083V = 2000) and (900 = 1273Nb + 1343Mo + 7257Al = 3800), and which has a crystal grain size number of 6 to 9.

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