| 摘要 |
PROBLEM TO BE SOLVED: To provide a ferritic stainless cast steel which has excellent oxidation resistance, and desirably, has satisfactory machinability, castability and weldability, and to provide a cast member which is produced using the same and has excellent oxidation resistance. SOLUTION: Regarding this inventions wherein the containing balance of additive elements to Fe is optimized, then, each content and total content of Cu and Si are optimized, and additionally, each content of Nb and C and their containing balance are optimized so as to obtain excellent acid resistance, the ferritic stainless cast steel has a composition comprising 16.0 to 27.0% Cr, 0.8 to 3.5% Cu, 0.5 to 2.0% Si, 0.5 to 1.5% Mo, 1.0 to 2.5% Nb and 0.10 to 0.25% C, and the balance Fe, inevitably comprising≤0.6% Ni,≤1.0% Mn,≤0.10% Al,≤0.15% S,≤0.10% N and≤0.15% P, and also comprising (Cu+Si): >2.0%, and a casting member such as a member for a switching valve of an exhaust gas flow passage is produced using the same. COPYRIGHT: (C)2010,JPO&INPIT |
