ASTM B240-04

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B 240 – 04
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for
1
Foundry and Die Castings
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.
2
1. Scope* 2.2 ASTM Standards:
B86 SpecificationforZincandZinc-Aluminum(ZA)Alloy
1.1 This specification covers commercial zinc and zinc-
Foundry and Die Castings
aluminum (ZA) alloys in ingot form for remelting for the
B 275 Practice for Codification of Certain Nonferrous Met-
manufacture of pressure die castings, foundry castings and
als and Alloys, Cast and Wrought
continuous cast bar stock as designated and specified in Table
B 899 Terminology Relating to Non-ferrous Metals and
1. Seven alloy compositions are specified, designated as
Alloys
follows:
B 908 Practice for the Use of Color Codes for Zinc Casting
A A
UNS ASTM Common Traditional
Alloy Ingot
Z33521 AG 40A Alloy 3 Zamak 3
E29 Practice for Using Significant Digits in Test Data to
Z33522 AG 40B Alloy 7 Zamak 7
Determine Conformance with Specifications
Z35530 AC 41A Alloy 5 Zamak 5
E47 Test Methods for Chemical Analysis of Zinc Die-
Z35540 AC 43A Alloy 2 Zamak 2
3
Z35635 ZA-8
Casting Alloys
Z35630 ZA-12
E88 Practice for Sampling Nonferrous Metals and Alloys
Z35840 ZA-27
in Cast Form for Determination of Chemical Composition
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are E 527 Practice for Numbering Metals and Alloys (UNS)
used primarily for remelting in the manufacture of pressure die
E 536 TestMethodsforChemicalAnalysisofZincandZinc
castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840 Alloys
are used for remelting in the manufacture of both foundry and
E 634 Practice for Sampling of Zinc and Zinc Alloys for
pressure die castings. Castings made from these ingots are Optical Emission Spectrometric Analysis
specified in SpecificationB86, Standard Specification for Zinc
2.3 Other ASTM Document:
4
and Zinc-Aluminum Alloys for Foundry and Die Castings. Methods for Emission Spectrochemical Analysis
1.3 The values stated in inch-pound units are to be regarded
3. Terminology
as standard.
1.4 This standard does not purport to address all of the 3.1 Terms shall be defined in accordance with Terminology
B 899.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to become familiar 3.2 Definitions of Terms Specific to This Standard:
3.2.1 continuous casting, n—a casting technique in which a
with all hazards including those identified in the appropriate
Material Safety Data Sheet (MSDS) for this product/material cast is continuously withdrawn through the bottom of the mold
as provided by the manufacturer, to establish appropriate as it solidifies, so that its length is not determined by mold
safety and health practices, and determine the applicability of dimensions; used chiefly to produce semifinished mill products
regulatory limitations prior to use. such as billets, blooms, ingots, slabs and tubes; also known as
concast.
2. Referenced Documents
3.2.2 die casting, n—a casting process in which molten
2.1 The following documents of the issue in effect on data
metal is injected under high velocity and pressure into a metal
of order acceptance form a part of this specification to the
extent referenced herein:
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
1
This specification is under the jurisdiction of ASTM Committee B02 on the ASTM website.
3
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee Withdrawn.
4
B02.04 on Zinc and Cadmium. Methods for Emission Spectrochemical Analysis: General Practices, Nomen-
Current edition approved Oct. 1, 2004. Published October 2004. Originally clature, Standard Methods, Proposed Methods, Suggested Methods, ASTM Inter-
approved in 1949. Last previous edition approved in 2003 as B 240 - 03. national, 1982.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
B240–04
TABLE 1 Chemical and North American Color Code Requirements
Z33521 Z33522 Z35530 Z35540 Z35635 Z35630 Z35840
A,B,C,D A,B,C,D A,B,C,D A,B,C,DB,C,EB,C,EB,C,E
(AG40A) (AG40B) (AC41A) (AC43A)
ALLOY 3 ALLOY 7 ALLOY 5 ALLOY 2 ZA-8 ZA-12 ZA-27
Zamak 3 Zamak 7 Zamak 5 Zamak 2
F
Color Code None Brow
...