| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide cast ferritic stainless steel excellent in acid resistance and desirably having superior machinability and also to provide a cast member excellent in acid resistance composed of the cast ferritic stainless steel. <P>SOLUTION: The cast ferritic stainless steel with excellent acid resistance has a composition consisting of, by mass, 18.0 to 27.0% Cr, 0.8 to 3.5% Cu, 0.5 to 2.0% Si, 0.5 to 1.5% Mo,≤2.5% Nb,≤0.6% Ni,≤0.12% C,≤1.0% Mn,≤0.10% Al,≤0.15% P,≤0.15% S,≤0.10% N and the balance Fe with inevitable impurities and satisfying (Cu+Si)>2.0%. The cast member is manufactured using the cast ferritic stainless steel. The cast member may be a switching valve member for switching the flow passage of exhaust gas. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
