ASTM B86-10e1
(Specification)Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
ABSTRACT
This specification covers commercial zinc, zinc-aluminum castings and continuous cast bar stock. Seven alloy compositions are specified and designated: Alloy 3; Alloy 7; Alloy 5; Alloy 2; ZA-8; ZA-12; ZA-27. The metal used in the manufacture of die castings shall be zinc alloy of a specified chemical composition conforming to the requirements specified. Impact test and tension test shall be made to conform to the specified requirements.
SCOPE
1.1 This specification covers commercial zinc, zinc-aluminum castings and continuous cast bar stock, as designated and specified in Table 1. Seven alloy compositions are specified and designated as follows:
General Information
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Standards Content (Sample)
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Designation: B86 – 10
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die
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Castings
This standard is issued under the fixed designation B86; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
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´ NOTE—Table 1 and Table X1.1 were corrected editorially in August 2010.
1. Scope* Material Safety Data Sheet (MSDS) for this product/material
as provided by the manufacturer, to establish appropriate
1.1 This specification covers commercial zinc, zinc-
safety and health practices, and determine the applicability of
aluminumcastingsandcontinuouscastbarstock,asdesignated
regulatory limitations prior to use.
and specified in Table 1. Seven alloy compositions are speci-
fied and designated as follows:
2. Referenced Documents
A
Common Traditional ASTM UNS
2.1 The following documents of the issue in effect on date
B
Alloy 3 Zamak 3 AG 40A Z33520
of order acceptance form a part of this specification to the
Alloy 7 Zamak 7 AG 40B Z33523
extent referenced herein:
B
Alloy 5 Zamak 5 AC 41A Z35531
2
2.2 ASTM Standards:
Alloy 2 Zamak 2 AC 43A Z35541
ZA-8 ZA-8 . Z35636
B240 Specification for Zinc and Zinc-Aluminum (ZA) Al-
ZA-12 ZA-12 . Z35631
loys in Ingot Form for Foundry and Die Castings
ZA-27 ZA-27 . Z35841
B275 Practice for Codification of Certain Nonferrous Met-
_________
A
als and Alloys, Cast and Wrought
See Table 1, Footnote C.
B
SAE Specification, Nos. 903 and 925 conform to the requirements for alloys
B557 Test Methods for Tension Testing Wrought and Cast
AG40A and AC41A, respectively.
Aluminum- and Magnesium-Alloy Products
B899 Terminology Relating to Non-ferrous Metals and
1.2 Zinc Alloys Z33520, Z33523, Z35531, and Z35541 are
Alloys
used primarily in the manufacture of pressure die castings.
E8 Test Methods for Tension Testing of Metallic Materials
Zinc-AluminumAlloys Z35636, Z35631, and Z35841 are used
E23 Test Methods for Notched Bar Impact Testing of
in the manufacture of both foundry and pressure die castings.
Metallic Materials
These alloys are also fabricated into continuous cast bar stock
E29 Practice for Using Significant Digits in Test Data to
used for prototyping and screw machine stock.
Determine Conformance with Specifications
1.3 The values stated in inch-pound units are to be regarded
E88 Practice for Sampling Nonferrous Metals andAlloys in
as standard. No other units of measurement are included in this
Cast Form for Determination of Chemical Composition
standard.
E527 Practice for Numbering Metals and Alloys in the
1.4 Systems of nomenclature used to designate zinc and
Unified Numbering System (UNS)
zinc-aluminum (ZA) alloys used for casting are described in
E536 Test Methods for ChemicalAnalysis of Zinc and Zinc
Appendix X1.
Alloys
1.5 This standard does not purport to address all of the
E634 Practice for Sampling of Zinc and Zinc Alloys for
safety concerns, if any, associated with its use. It is the
Optical Emission Spectrometric Analysis
responsibility of the user of this standard to become familiar
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2.3 North American Die Casting Association (NADCA):
with all hazards including those identified in the appropriate
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This specification is under the jurisdiction of ASTM Committee B02 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
B02.04 on Zinc and Cadmium. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2010. Published May 2010. Originally the ASTM website.
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approved in 1931. Last previous edition approved in 2009 as B86 - 09b. DOI: Available from North American Die Casting, Assn., 2000 5th Ave., River
10.1520/B0086-10E01. Grove, IL 60171, http://www.diecasting.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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B86–10
TABLE 1 Chemical Requirements
A,B,C,D A,B,C,D,E A,B,C,D A,C,,D A,C,F A,C,F A,C,F
Alloy 3 Alloy 7 Alloy 5 Alloy 2 ZA-8 ZA-12 ZA-2
Zamak 3 Zamak 7 Zamak 5 Zamak ZA-8 ZA-12 ZA-27
Element
(AG40A) (AG40B) (AC41A) (AC43A)
Z33520 Z33523 Z35531 Z35541 † Z35636 Z35631 Z35841
Aluminum 3.7-4.3 3.7-4.3 3.7-4.3 3.7-4.3 8.0-8.8 10.5-11.5 25.0-28.0
G G
Magnesium 0.02-0.06 0.005-0.020 0.02-0.06 0.02-0.06 0.01-0.03 0.01-0.03 0.01-0.02
H E
Copper 0.1 max 0.1
...
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