Patent ID: 7494551

Claim:
A Ti-containing ferritic stainless steel sheet comprising on a mass percent basis: 0.01% or less of C; 0.5% or less of Si; 0.3% or less of Mn; 0.01% to 0.04% of P; 0.01% or less of S; 8% to 30% of Cr; 1.0% or less of Al; 0.05% to 0.5% of Ti; 0.04% or less of N, 8≦Ti/(C+N)≦30 being satisfied; and being free of Nb, with the balance being substantially Fe and incidental impurities, wherein at least 50% of the total P content in the steel sheet is precipitated in the form of the Ti base precipitates, a grain size number of ferrite grain is 6.0 or more, and an average diameter Dp of precipitations, each being [(a long axis length of a Ti base precipitate+a short axis length thereof)/2], of the Ti base precipitates in the steel sheet is in the range of from 0.05 μm to 1.0 μm.