To carbon contact conductive and durable titanium material for a fuel cell separator or a titanium alloy, a fuel cell separator using the same, and a fuel cell

A plurality of projections surface shape formed distributed, the protrusion of the surface titanium oxide film is formed, a titanium material or a titanium alloy material for a fuel cell separator, by the presence of fine projections contact conductivity is presumed remarkably improved, a more enhanced to carbon contact conductivity and durability, it is possible to extend the life of the fuel cell. Then, the present invention has high applicability in cell manufacturing industry.