Patent ID: 8568917

Claim:
A material for contact components or battery components, the material comprising a metal sheet having a surface layer portion containing a first metal element, wherein said metal sheet comprises a Cr-containing steel plate or a surface-treated steel plate, at least a part of said first metal element on an outermost surface of said surface layer portion is substituted by a second metal element having a nobler standard electrode potential than said first metal element, and said second metal element is deposited on said outermost surface in a state of a particulate metal, oxide, or hydroxide, an amount of the second metal element deposited on the outermost surface of the metal sheet is 5 to 50 mg/m 2 , said second metal element contains: a first group element, being at least one selected from the group consisting of Pd, Pt, Ag, and Au; and a second group element, being at least one selected from the group consisting of In, Co, and Cu, and the first group and second group elements are both deposited on and in direct contact with the outermost surface of the metal sheet.