Standard for Additive Manufacturing – Finished Part Properties – Standard Specification for Cobalt-28 Chromium-6 Molybdenum via Powder Bed Fusion
1.1 This specification covers additively manufactured cobalt-28 chromium-6 molybdenum alloy components with similar chemical composition to UNS R30075 by means of laser and electron beam-based full melt powder bed fusion processes. The components produced by these processes are used typically in applications that require mechanical properties similar to cast or wrought products. Components manufactured to this specification are often, but not necessarily, post processed via machining, grinding, electrical discharge machining (EDM), polishing, and so forth to achieve desired surface finish and critical dimensions.
1.2 This specification is intended for the use of purchasers or producers, or both, of additively manufactured cobalt-28 chromium-6 molybdenum alloy components for defining the requirements and ensuring component properties.
1.3 Users are advised to use this specification as a basis for obtaining components that will meet the minimum acceptance requirements established and revised by consensus of the members of the committee.
1.4 User requirements considered more stringent than requirements in Sections 1–22 may be met by the addition to the purchase order of one or more supplementary requirements, which may include, but are not limited to, those listed in Supplementary Requirements S1–S14.
1.5 The values stated in SI units are to be regarded as the standard. Other units are included only for informational purposes.
1.6 The chemical composition requirements in this specification for cobalt-28 chromium-6 molybdenum alloy components are similar to Specification F1537 Alloys 1 and 2 for wrought cobalt-28 chromium-6 molybdenum and Specification F75 for cast cobalt-28 chromium-6 molybdenum.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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