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1.1 This practice covers a system originally adopted for designating light metals and alloys, cast and wrought, and later extended to certain heavier, base-metal die-casting alloys. Those designations, which are currently being used in specifications under the jurisdiction of Committees B02 on Nonferrous Metals and Alloys and B07 on Light Metals and Alloys, are listed in Table X2.1.
1.2 This practice also provides a system for designating magnesium alloys that have been used commercially since 1952, and thus is intended to be the registration source for new magnesium alloys. A record of designations along with the established compositions is given in Table X4.1.
1.3 The equivalent Unified Numbering System (UNS) alloy designations shown in the appendixes are in accordance with Practice E527.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
B102 Specification for Lead- and Tin-Alloy Die Castings
B240 Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings
B327 Specification for Master Alloys Used in Making Zinc Die Casting Alloys
B951 Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys, Cast and Wrought
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
ANSI StandardH35.1 Alloy and Temper Designation Systems for Aluminum
ICS Number Code 77.150.01 (Products of non-ferrous metals in general)
UNSPSC Code 11101711(Non ferrous alloy)