ASTM B86-04e1

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Designation: B 86 – 04
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die
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Castings
ThisstandardisissuedunderthefixeddesignationB 86;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—Editorial changes were made throughout in March 2005.
1. Scope* 2. Referenced Documents
1.1 This specification covers commercial zinc, zinc- 2.1 The following documents of the issue in effect on date
aluminumcastingsandcontinuouscastbarstock,asdesignated of order acceptance form a part of this specification to the
and specified in Table 1. Seven alloy compositions are speci- extent referenced herein:
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fied and designated as follows: 2.2 ASTM Standards:
A
B 240 Specification for Zinc and Zinc-Aluminum (ZA)
UNS ASTM Common Traditional
Alloys in Ingot Form for Foundry and Die Castings
B
Z33520 AG 40A Alloy 3 Zamak 3
B 275 Practice for Codification of Certain Nonferrous Met-
Z33523 AG 40B Alloy 7 Zamak 7
B
als and Alloys, Cast and Wrought
Z35531 AC 41A Alloy 5 Zamak 5
Z35541 AC 43A Alloy 2 Zamak 2
B 557 Test Methods of Tension Testing Wrought and Cast
Z35636 ZA-8
Aluminum- and Magnesium-Alloy Products
Z35631 ZA-12
B 899 Terminology Relating to Non-ferrous Metals and
Z35841 ZA-27
__________
Alloys
A
See Table 1, Footnote B
E8 Test Methods for Tension Testing of Metallic Materials
B
SAE Specification, Nos. 903 and 925 conform to the requirements for alloys
E23 Test Methods for Notched Bar Impact Testing of
AG40A and AC41A, respectively.
Metallic Materials
1.2 Zinc Alloys Z33520, Z33523, Z35531, and Z35541 are
E29 Practice for Using Significant Digits in Test Data to
used primarily in the manufacture of pressure die castings.
Determine Conformance with Specifications
Zinc-AluminumAlloys Z35636, Z35631, and Z35841 are used E47 Test Methods for Chemical Analysis of Zinc Die-
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in the manufacture of both foundry and pressure die castings.
Casting Alloys
These alloys are also fabricated into continuous cast bar stock
E88 Practice for Sampling Nonferrous Metals and Alloys
used for prototyping and screw machine stock.
in Cast Form for Determination of Chemical Composition
1.3 The values stated in inch-pound units are to be regarded
E 527 Practice for Numbering Metals and Alloys (UNS)
as the standard.
E 536 TestMethodsforChemicalAnalysisofZincandZinc
1.4 This standard does not purport to address all of the
Alloys
safety concerns, if any, associated with its use. It is the
E 634 Practice for Sampling of Zinc and Zinc Alloys for
responsibility of the user of this standard to become familiar
Optical Emission Spectrometric Analysis
with all hazards including those identified in the appropriate
2.3 North American Die Casting Association (NADCA):
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Material Safety Data Sheet (MSDS) for this product/material
NADCA Product Specification Standards for Die Castings
as provided by the manufacturer, to establish appropriate
2.4 Federal Standard:
safety and health practices, and determine the applicability of
regulatory limitations prior to use.
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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
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This specification is under the jurisdiction of ASTM Committee B02 on Standards volume information, refer to the standard’s Document Summary page on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee the ASTM website.
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B02.04 on Zinc and Cadmium. Withdrawn.
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Current edition approved Oct. 1, 2004. Published October 2004. Originally Available from North American Die Casting, Assn., 2000 5th Ave., River
approved in 1931. Last previous edition approved in 2003 as B 86 - 03. Grove, IL 60171.
*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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B86–04
TABLE 1 Chemical Requirements
Z33520 Z33523 Z35531 Z35541 Z35636 Z35631 Z35841
A,B,C,D A,B,C,D A,B,C,D A,C,,D A,C,E A,C,E A,C,E
(AG40A) (AG40B) (AC41A) (AC43A)
Element
Alloy 3 Alloy 7 Alloy 5 Alloy 2 ZA-8 ZA-12 ZA-27
Zamak 3 Zamak 7 Zamak 5 Zamak 2
Aluminum 3.5-4.3 3.5-4.3 3.5-4.3 3.5-4.3 8.0-8.8 10.5-11.5 25.0-28.0
F F
Magnesium 0.020-0.05 0.005-0.020 0.03-0.08 0.020-0.050 0.015-0.030 0.015-0.030 0.010-0.020
G
Copper 0.25 max 0.25 max 0.75-1.25 2.5-3.0 0.8-1.3 0.5-1.2 2.0-2.5
Iron, max 0.100 0.075 0.100 0.100 0.075 0.075 0.075
Lead, max 0.005 0.0020 0.005 0.005 0.006 0.006 0.006
Cadmium, max 0.004 0.0020 0.004 0.004 0.006 0.006 0.006
Tin, max 0.003 0.0010 0.003 0.003 0.003 0.003 0.003
...