1. Rationale
The UNS (Uniform Numbering System) requires that each specific metal grade or alloy composition receive a unique UNS number. Previous changes to the composition specifications for certain alloys required that new UNS numbers be assigned, as reflected in this revision. New UNS numbers are underlined in red and obsolete numbers are crossed out in section 1.1 and Table 1.
Keywords
bar stock; castings; concast; continuous cast bar stock; die castings; foundry castings; permanent mold castings; pressure die castings; prototyping; sand castings; ZA alloys; Zamak; zinc; zinc-aluminum alloys; zinc metal; Zinc alloys--specifications; Zinc die casting alloy; Die casting zinc alloys--specifications; Ingots; Pressure die castings; UNS Z33521 (Zn alloy AG40A); UNS Z33522 (Zn alloy); UNS Z33530 (Zn alloy AC41A); UNS Z35540 (Zn alloy, AC43A); Zinc--specifications; Zinc alloy ingots
Citing ASTM Standards
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