SAE AMS 2460 - (R) Plating, Chromium: 2023 [pdf]

This specification covers the requirements for electrodeposited chromium plating.

Application

This plating has been used typically as a decorative finish, to improve corrosion resistance, to increase wear resistance, to extend tool and die life, to maintain accuracy of gauges, and to recondition worn or undersized parts, but usage is not limited to such applications. While this document is primarily intended to address electrodeposition on steels, the process has been performed on aluminum, heat resistant alloys, high nickel alloys, super alloys, and other metals. The requirements of this specification are equivalent to AMS-QQ-C-320 but generally more stringent than AMS2406. Thin Dense Chrome plating should be specified by reference to AMS2438.

Restriction

Application of chromium plating to steel parts having a hardness of HRC 48 (ultimate tensile strength of 238 ksi [1641 MPa]) or higher shall not be performed unless authorized by the design documentation of the cognizant engineering organization (see 4.2.3.1 and 8.5.2). Application of chromium plating for repair of steel parts having a hardness of HRC 48 (ultimate tensile strength of 238 ksi [1641 MPa]) or higher requires a design evaluation and shall not be performed unless specific approval has been received from the cognizant engineering organization.