Automobile irrigation and drainage gas channel component

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