Abstract: A low-cost ferritic steel sheet possessing not only formability enabling application to complexly configured automobile exhaust gas passage components but also high-temperature strength, high-temperature oxidation resistance and low-temperature toughness as good as or superior to existing ferritic steels, which ferritic steel sheet comprises, in mass percent, C: not more than 0.02%, Si: 0.7-1.1%, Mn: not more than 0.8%, Ni: not more than 0.5%, Cr: 8.0 to less than 11.0%, N: not more than 0.02%, Nb: 0.10-0.50%, Ti: 0.07-0.25%, Cu: 0.02-0.5%, B: 0.0005-0.02%, V: 0 (no addition)-0.20%, one or both of Ca and Mg: 0 (no addition)?0.01% in total, one or more elements among Y and rare earth elements: 0 (no addition)?0.20% in total, and the balance of Fe and unavoidable impurities, and satisfies 3 Cr+40 Si?61, Cr+10 Si?21, and 420 C?11.5 Si+7 Mn+23 Ni?11.5 Cr?12 Mo+9 Cu?49 Ti?25 (Nb+V)?52 A+470 N+189?70.