Steel for the solid electrolyte type fuel cell separator

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PROBLEM TO BE SOLVED : To provide an inexpensive solid electrolytic type fuel battery separator made of metal in which a good oxidized coating having good electric conductivity is formed at about 1000 deg.C, furthermore having good oxidation resistance and moreover small in a difference in thermal expansion with electrolytes. SOLUTION : This steel for a solid electrolytic type fuel battery separator has a compsn. contg., by weight, = two kinds among = two kinds among <=2% Ni, <=1% Al, <=1% Ti, <=2% Nb and <=5% (Mo+1/2W) may be incorporated therein.