Abstract: There is provided a ferritic stainless steel sheet having excellent corrosion resistance and excellent hydrogen embrittlement resistance without requiring dehydrogenation treatment during its manufacture or incorporating large amounts of Ni, Cu, or Mn. The ferritic stainless steel sheet has a chemical composition containing, by mass percent, C: 0.001% to 0.020%, Si: 0.10% to 0.60%, Mn: 0.10% to 0.60%, P: 0.040% or less, S: 0.030% or less, Al: 0.030% to 0.060%, Cr: 16.5% to 19.0%, Ti: 0.15% to 0.35% Nb: 0.30% to 0.60%, Ni: 0.01% to 0.60%, O (oxygen): 0.0025% to 0.0050%, and N: 0.001% to 0.020%, the balance being Fe and incidental impurities, in which the number of precipitates having a cross-sectional area of 5.0 ?m2 or more is 300 or less in a 1-mm2 region, and the precipitates having a cross-sectional area of 5.0 ?m2 or more has an average cross-sectional area of 20.0 ?m2 or less.

Abstract: To provide a hot-rolled and annealed ferritic stainless steel sheet having sufficient corrosion resistance and excellent punching workability, a predetermined dimensional accuracy being obtained without cracking when the steel sheet is formed into a thick-walled flange by punching work, and a method for producing the hot-rolled and annealed ferritic stainless steel sheet. The hot-rolled and annealed ferritic stainless steel sheet has a chemical composition containing, on a mass percent basis, C: 0.001% to 0.020%, Si: 0.05% to 1.00%, Mn: 0.05% to 1.00%, P: 0.04% or less, S: 0.01% or less, Al: 0.01% to 0.10%, Cr: 10.0% to 20.0%, Ni: 0.50% to 2.00%, Ti: 0.10% to 0.40%, and N: 0.001% to 0.020%, the balance being Fe and incidental impurities; and has a metal microstructure which is a single ferrite phase microstructure having an average grain size of 5 to 20 ?m.