ASTM B240.pdf

Designation: B 240 – 05

Standard Specification for

Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for

Foundry and Die Castings

1

This standard is issued under the fixed designation B 240; the number immediately following the designation indicates the year of

original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A

superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope*

. Seven alloy compositions are specified, designated as

follows:

Common Traditional ASTM

castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840

are used for remelting in the manufacture of both foundry and

pressure die castings. Castings made from these ingots are

specified in Specification

B86, Standard Specification for Zinc

and Zinc-Aluminum Alloys for Foundry and Die Castings.

1.3 The values stated in inch-pound units are to be regarded

as standard.

1.4 Systems of nomenclature used to designate zinc and

zinc-aluminum (ZA) alloys used for casting are described in

2. Referenced Documents

2.1 The following documents of the issue in effect on data

of order acceptance form a part of this specification to the

extent referenced herein:

2.2 ASTM Standards:

B86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy

Foundry and Die Castings

B 275 Practice for Codification of Certain Nonferrous Met-

Determine Conformance with Specifications

E47 Test Methods for Chemical Analysis of Zinc Die-

Casting Alloys

E88 Practice for Sampling Nonferrous Metals and Alloys

in Cast Form for Determination of Chemical Composition

E 527 Practice for Numbering Metals and Alloys (UNS)

E 536 Test Methods for Chemical Analysis of Zinc and Zinc

Alloys

E 634 Practice for Sampling of Zinc and Zinc Alloys for

ISO 301 Zinc Alloy Ingots Intended for Casting

3. Terminology

3.1 Terms shall be defined in accordance with Terminology

B 899.

3.2 Definitions of Terms Specific to This Standard:

This specification is under the jurisdiction of ASTM Committee B02 on

Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee

B02.04 on Zinc and Cadmium.

Current edition approved Nov. 1, 2005. Published December 2005. Originally

Standards volume information, refer to the standard’s Document Summary page on

the ASTM website.

clature, Standard Methods, Proposed Methods, Suggested Methods, ASTM Inter-

national, 1982.