| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an Al-containing ferritic stainless steel which has both of extremely excellent oxidation resistance when having been used for a solid oxide fuel cell for a long period of time and electric conductivity at high temperature, by specifying components and the range of Ti/Al in the steel. <P>SOLUTION: The stainless steel includes by mass%, 0.02% or less C, 1% or less Si, 0.5% or less Mn, 0.035% or less P, 0.003% or less S, 15.5-30% Cr, 0.5-6% Al, 0.18-1% Ti, 0.02% or less N so that Ti/Al satisfies 0.05-0.6, and the balance Fe with unavoidable impurities. The stainless steel may contain one or more elements of Nb, V, Mo, Ni, Cu, B, Mg and Ca as selective elements. The stainless steel can also further have Zr, La, Y and REM added. <P>COPYRIGHT: (C)2011,JPO&INPIT |
