| 简介 |
PROBLEM TO BE SOLVED : To provide steel for a solid oxide type fuel cell separator high temperature electrical conductivity and thermal fatigue properties of which are improved at the same time in a fundamental composition essentially consisting of no expensive elements. SOLUTION : The ferritic stainless steel for a solid oxide type fuel cell separator has a composition comprising, by mass, ≤0.05% C, ≤1.5% Si, ≤1.5% Mn, ≤0.01% S, 15 to 40% Cr, 0.4 to 4% Cu, ≤0.05% N, 0 to 4% Mo, 0 to 4% W, 0 to 0.8% Nb, 0 to 0.5% Ti, 0 to 0.5% Zr, 0 to 0.5% V, 0 to 0.5% Ta, 0 to 6% Al, 0 to 0.1% Y, 0 to 0.1% REM (rare earth elements), 0 to 0.01% Ca and 0 to 0.01% B, and the balance Fe with inevitable impurities. COPYRIGHT : (C)2006, JPO&NCIPI |
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