Patent ID: 8470237

Claim:
A ferritic stainless steel consisting of, in terms of mass %, C: 0.001 to 0.02%, N: 0.001 to 0.02%, Si: 0.01 to 0.5%, Mn: 0.05 to 1%, P: 0.04% or less, S: 0.01% or less, Cr: 12 to 25%, Ti: 4(C+N) to 0.5%, B: 0.0002 to 0.0004%, Sn: 0.01 to 2%, and optionally, one or more of Sb: 0.005 to 1%, Nb: 0.02 to 1%, Ni: 0.2 to 5%, Cu: 1.5% or less, W: 5% or less, Al: 1% or less, and Ca: 0.002% or less, with a remainder of Fe and unavoidable impurities.