1. Scope

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 Tables 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.

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 E 527.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

B37 Specification for Aluminum for Use in Iron and Steel Manufacture

B80 Specification for Magnesium-Alloy Sand Castings

B86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings

B93/B93M Specification for Magnesium Alloys in Ingot Form for Sand Castings, Permanent Mold Castings, and Die Castings

B94 Specification for Magnesium-Alloy 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

E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

ANSI Standard

Keywords

aluminum; lead; magnesium; tin; UNS designations; zinc;

ICS Code

ICS Number Code 77.150.01 (Products of non-ferrous metals in general)

DOI: 10.1520/B0275-04

ASTM International is a member of CrossRef.