ASTM B240-07

Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings

ABSTRACT
This specification covers commercial zinc and zinc-aluminum alloys in ingot form for remelting for the manufacture of pressure die castings, foundry castings and continuous cast bar stock. Seven alloy compositions are specified, which includes Z33521, Z33522, Z35530, Z35540, for zinc alloys and Z35635, Z35630, Z35840, for zinc-aluminum alloys. The material shall be of uniform quality and reasonably free from dross, adhering foreign matter, and surafce oxide. The determination of chemical composition shall be made in accordance with suitable analytical methods.
SCOPE
1.1 This specification covers commercial zinc and zinc-aluminum (ZA) alloys in ingot form for remelting for the manufacture of pressure die castings, foundry castings and continuous cast bar stock as designated and specified in . Seven alloy compositions are specified, designated as follows:
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are used primarily for remelting in the manufacture of pressure die 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 B 86, 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 Appendix X1.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Jun-2007
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.04 - Zinc and Cadmium

Relations

• Replaces: ASTM B240-06 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings
• Effective Date: 01-Jul-2007
• Replaced By: ASTM B240-07e1 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings
• Effective Date: 01-Jul-2007
• Referred By: ASTM B952/B952M-19 - Standard Specification for Zinc Alloys in Ingot Form for Spin Casting
• Effective Date: 01-Jul-2007
• Referred By: ASTM B86-22 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
• Effective Date: 01-Jul-2007
• Referred By: ASTM B908-22 - Standard Practice for the Use of Color Codes for Zinc Casting Alloy Ingot
• Effective Date: 01-Jul-2007
• Referred By: ASTM B949-23 - Standard Specification for General Requirements for Zinc and Zinc Alloy Products
• Effective Date: 01-Jul-2007

Standards Content (Sample)

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 – 07
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.
1. Scope* 2. Referenced Documents
1.1 This specification covers commercial zinc and zinc- 2.1 The following documents of the issue in effect on data
aluminum (ZA) alloys in ingot form for remelting for the of order acceptance form a part of this specification to the
manufacture of pressure die castings, foundry castings and extent referenced herein:
2
continuous cast bar stock as designated and specified in Table 2.2 ASTM Standards:
1. Seven alloy compositions are specified, designated as B86 SpecificationforZincandZinc-Aluminum(ZA)Alloy
follows: Foundry and Die Castings
A A
B 275 Practice for Codification of Certain Nonferrous Met-
Common Traditional ASTM UNS
als and Alloys, Cast and Wrought
Alloy 3 Zamak 3 AG 40A Z33521
B 897 Specification for the Configuration of Zinc and Zinc
Alloy 7 Zamak 7 AG 40B Z33522
Alloy Jumbo and Block Ingot
Alloy 5 Zamak 5 AC 41A Z35530
Alloy 2 Zamak 2 AC 43A Z35540
B 899 Terminology Relating to Non-ferrous Metals and
ZA-8 ZA-8 . Z35635
Alloys
ZA-12 ZA-12 . Z35630
B 908 Practice for the Use of Color Codes for Zinc Casting
ZA-27 ZA-27 . Z35840
__________
Alloy Ingot
A
See Table 1, footnote B.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are
E47 Test Methods for Chemical Analysis of Zinc Die-
used primarily for remelting in the manufacture of pressure die
3
Casting Alloys
castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840
E88 Practice for Sampling Nonferrous Metals and Alloys
are used for remelting in the manufacture of both foundry and
in Cast Form for Determination of Chemical Composition
pressure die castings. Castings made from these ingots are
E 527 Practice for Numbering Metals and Alloys (UNS)
specified in SpecificationB86, Standard Specification for Zinc
E 536 TestMethodsforChemicalAnalysisofZincandZinc
and Zinc-Aluminum Alloys for Foundry and Die Castings.
Alloys
1.3 The values stated in inch-pound units are to be regarded
E 634 Practice for Sampling of Zinc and Zinc Alloys for
as standard.
Optical Emission Spectrometric Analysis
1.4 Systems of nomenclature used to designate zinc and
2.3 Other ASTM Document:
zinc-aluminum (ZA) alloys used for casting are described in
4
Methods for Emission Spectrochemical Analysis
Appendix X1.
5
2.4 ISO Standard
1.5 This standard does not purport to address all of the
ISO 301 Zinc Alloy Ingots Intended for Casting
safety concerns, if any, associated with its use. It is the
ISO3815–1 Zincandzincalloys—Part1:Analysisofsolid
responsibility of the user of this standard to become familiar
samples by optical emission spectrometry.
with all hazards including those identified in the appropriate
Material Safety Data Sheet (MSDS) for this product/material
as provided by the manufacturer, to establish appropriate
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
safety and health practices, and determine the applicability of
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
regulatory limitations prior to use. Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
Withdrawn.
1 4
This specification is under the jurisdiction of ASTM Committee B02 on Methods for Emission Spectrochemical Analysis: General Practices, Nomen-
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee clature, Standard Methods, Proposed Methods, Suggested Methods, ASTM Inter-
B02.04 on Zinc and Cadmium. national, 1982.
5
Current edition approved July 1, 2007. Published August 2007. Originally Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
approved in 1949. Last previous edition approved in 2006 as B 240 - 06. 4th Floor, New York, NY 10036, http://www.ansi.org.
*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.
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B240–07
TABLE 1 Chemical and North American Color Code Requirements
A,B,C,D A,B,C,D A,B,C,D A,B,C,D B,C,E B,C,E B,C,E
Alloy 3 Alloy 7 Alloy 5 Alloy 2 ZA-8 ZA-12 ZA-27
Zamak 3 Zamak 7 Zamak 5 Zamak 2 ZA-8 ZA-12 ZA-27
(AG40A) (AG40B) (AC41A) (AC43A)
Z33521 Z33522 Z35530 Z35540 Z35635 Z35630 Z35840
...