The Unified Numbering System (UNS) of metals and alloys was developed by the American National Standards Institute (ANSI) in 1974 to uniformly number commercial metals and alloys in the United States, and is administered jointly by the Society of Automotive Engineers (SAE) and the American Society for Testing and Materials (ASTM). The Copper Development Association maintains a database of copper alloys here: https://unscopperalloys.org/. There is a free lookup database of all UNS alloys here: https://www.matweb.com/search/SearchUNS.aspx.
EN alloy numbers are defined by several standards written and maintained by the European Committee for Standardization (CEN).
The Metal Powders Industry Federation (MPIF) maintains a standard nomenclature system for structural parts formed by powder metallurgy – see MPIF Standard 35 – SP.
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