| 摘要 |
PROBLEM TO BE SOLVED: To provide an Mo-free automobile exhaust gas flow passage member having excellent durability even in an exhaust gas condensation-evaporation environment with resource economization at a low cost. SOLUTION: The automobile exhaust gas flow passage member is composed using a ferritic stainless steel having a composition comprising, by mass,≤0.015% C,≤2.0% Si,≤1.0% Mn,≤0.045% P,≤0.010% S, 16 to 25% Cr, 0.05 to 0.2% Nb, 0.05 to 0.5% Ti,≤0.025% N and 0.02 to 1.0% Al, further comprising one or more kinds selected from 0.1 to 2.0% Ni and 0.1 to 1.0% Cu by≥0.6% in terms of Ni+Cu, and the balance Fe with inevitable impurities, and having corrosion resistance to an exhaust gas condensate. COPYRIGHT: (C)2007,JPO&INPIT
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