Active Standard ASTM B275 | Developed by Subcommittee: B02.04
Book of Standards Volume: 02.04
Historical (view previous versions of standard)
This practice covers a system for designating cast and wrought nonferrous metals and alloys. It was originally adopted for light metals and alloys that are cast and wrought and later extended to heavier base-metal die-casting alloys. Chemical composition limits serve as the basis for the Unified Numbering System (UNS) designations. The temper designations used for all metal forms, except for ingots, follow the alloy designation.
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1.1 This practice covers a system for designating die-casting alloys of zinc, tin and lead. Those designations currently being used in specifications under the jurisdiction of Committees B02 on Nonferrous Metals and are listed in Appendix Table X2.1.
1.1.1 The alloy designations now being used in Committee B07 specifications for aluminum and aluminum-alloy wrought and cast products conform to ANSI H35.1. Alloys formerly codified by this practice and the corresponding ANSI designations are shown in Tables X3.1 and X3.2 of the Appendix for legacy purposes.
1.1.2 The alloy designations now being used in Committee B07 specifications for magnesium and magnesium-alloy wrought and cast products conform to Practice B951, as indicated in Appendix X4. Alloy designations formerly codified by this practice are no longer relevant.
1.2 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)