FERRITIC STAINLESS STEEL FOR SOLID OXIDE FUEL CELLS, AND CONNECTION MATERIAL USING SAME

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The present invention relates to stainless steel, comprises no expensive rare earth elements which do not enable the easy manufacture of steel, wherein the stainless steel of the present invention has high oxidation resistance and high electrical conductivity, and simultaneously has a low speed of volatilization of chromium (Cr) at a high temperature, and therefore is suitable for a connection material for fuel cells. The stainless steel according to the present invention comprises : 20 wt % to 35 wt % of Cr; 1 wt % or less of Mn; 0.3 wt % to 5 wt % of Nb, with the remainder being Fe and inevitable impurities.