This specification covers the requirements for cobalt-28chromium-6molybdenum alloy powders for coating of orthopedic implants. This specification covers powder requirements only and does not address coating properties. Materials may be manufactured by rotating electrode process, inert gas atomization, or other methods that meet the powder requirements of this specification. The powder shall conform to chemical composition, sieve analysis, and cleanliness requirements of this specification.

1.1 This specification covers the requirements for cobalt-28chromium-6molybdenum alloy powders for use in fabricating coatings on cobalt-28chromium-6molybdenum alloy orthopedic implants.

1.2 Powders covered under this specification may be used to form coatings by sintering or thermal spraying techniques.

1.3 This specification covers powder requirements only. It does not address properties of the coatings formed from them.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.