ASTM B86-10a

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

• Status: Historical
• Publication Date: 30-Sep-2010
• ICS: 77.150.60 - Lead, zinc and tin products
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.04 - Zinc and Cadmium

Relations

• Replaces: ASTM B86-10e1 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
• Effective Date: 01-Oct-2010
• Replaced By: ASTM B86-11 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
• Effective Date: 01-Jun-2011
• Referred By: ASTM E784-89(2022) - Standard Specification for Clamps, Utility, Laboratory, and Holders, Buret and Clamp
• Effective Date: 01-Oct-2010
• Referred By: ASTM B949-23 - Standard Specification for General Requirements for Zinc and Zinc Alloy Products
• Effective Date: 01-Oct-2010
• Referred By: ASTM B252-92(2020) - Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings
• Effective Date: 01-Oct-2010
• Referred By: ASTM C1804-20 - Standard Specification for Spun Cast Prestressed Concrete Bases for Tapered Steel Lighting Poles
• Effective Date: 01-Oct-2010
• Referred By: ASTM B240-22 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings
• Effective Date: 01-Oct-2010
• Referred By: ASTM F3160-21 - Standard Guide for Metallurgical Characterization of Absorbable Metallic Materials for Medical Implants
• Effective Date: 01-Oct-2010

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B86 – 10a
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die
1
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.
1. Scope* safety and health practices, and determine the applicability of
regulatory limitations prior to use.
1.1 This specification covers commercial zinc, zinc-
aluminumcastingsandcontinuouscastbarstock,asdesignated
2. Referenced Documents
and specified in Table 1. Seven alloy compositions are speci-
2.1 The following documents of the issue in effect on date
fied and designated as follows:
of order acceptance form a part of this specification to the
A
Common Traditional ASTM UNS
extent referenced herein:
B 2
Alloy 3 Zamak 3 AG 40A Z33520
2.2 ASTM Standards:
Alloy 7 Zamak 7 AG 40B Z33523
B240 Specification for Zinc and Zinc-Aluminum (ZA) Al-
B
Alloy 5 Zamak 5 AC 41A Z35531
loys in Ingot Form for Foundry and Die Castings
Alloy 2 Zamak 2 AC 43A Z35541
ZA-8 ZA-8 . Z35636
B275 Practice for Codification of Certain Nonferrous Met-
ZA-12 ZA-12 . Z35631
als and Alloys, Cast and Wrought
ZA-27 ZA-27 . Z35841
B557 Test Methods for Tension Testing Wrought and Cast
_________
A
Aluminum- and Magnesium-Alloy Products
See Table 1, Footnote C.
B
SAE Specification, Nos. 903 and 925 conform to the requirements for alloys B899 Terminology Relating to Non-ferrous Metals and
AG40A and AC41A, respectively.
Alloys
E8 Test Methods for Tension Testing of Metallic Materials
1.2 Zinc Alloys Z33520, Z33523, Z35531, and Z35541 are
E23 Test Methods for Notched Bar Impact Testing of
used primarily in the manufacture of pressure die castings.
Metallic Materials
Zinc-AluminumAlloys Z35636, Z35631, and Z35841 are used
E29 Practice for Using Significant Digits in Test Data to
in the manufacture of both foundry and pressure die castings.
Determine Conformance with Specifications
These alloys are also fabricated into continuous cast bar stock
E88 Practice for Sampling Nonferrous Metals andAlloys in
used for prototyping and screw machine stock.
Cast Form for Determination of Chemical Composition
1.3 The values stated in inch-pound units are to be regarded
E527 Practice for Numbering Metals and Alloys in the
as standard. The values given in parentheses are mathematical
Unified Numbering System (UNS)
conversions to SI units that are provided for information only
E536 Test Methods for ChemicalAnalysis of Zinc and Zinc
and are not considered standard.
Alloys
1.4 Systems of nomenclature used to designate zinc and
E634 Practice for Sampling of Zinc and Zinc Alloys for
zinc-aluminum (ZA) alloys used for casting are described in
Optical Emission Spectrometric Analysis
Appendix X1.
3
2.3 North American Die Casting Association (NADCA):
1.5 This standard does not purport to address all of the
NADCA Product Specification Standards for Die Castings
safety concerns, if any, associated with its use. It is the
4
2.4 Federal Standard:
responsibility of the user of this standard to become familiar
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
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
contact ASTM Customer Service at [e-mail]. 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 Available from North American Die Casting, Assn., 2000 5th Ave., River
B02.04 on Zinc and Cadmium. Grove, IL 60171, http://www.diecasting.org.
4
Current edition approved Oct. 1, 2010. Published October 2010. Originally Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
´1
approved in 1931. Last previous edition approved in 2010 as B86 - 10 . DOI: Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
10.1520/B0086-10A. www.dodssp.daps.mil.
*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

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B86 – 10a
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 Zam
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation:B86–10 Designation: B86 – 10a
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die
1
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.
1
´ NOTE—Table 1 and Table X1.1 were corrected editorially in August 2010.
1. 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:
A
Common Traditional ASTM UNS
B
Alloy 3 Zamak 3 AG 40A Z33520
Alloy 7 Zamak 7 AG 40B Z33523
B
Alloy 5 Zamak 5 AC 41A Z35531
Alloy 2 Zamak 2 AC 43A Z35541
ZA-8 ZA-8 . Z35636
ZA-12 ZA-12 . Z35631
ZA-27 ZA-27 . Z35841
_________
A
See Table 1, Footnote C.
B
SAE Specification, Nos. 903 and 925 conform to the requirements for alloys AG40A and AC41A, respectively.
1.2 Zinc Alloys Z33520, Z33523, Z35531, and Z35541 are used primarily in the manufacture of pressure die castings.
Zinc-AluminumAlloysZ35636,Z35631,andZ35841areusedinthemanufactureofbothfoundryandpressurediecastings.These
alloys are also fabricated into continuous cast bar stock used for prototyping and screw machine stock.
1.3The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 Systems of nomenclature used to designate zinc and zinc-aluminum (ZA) alloys used for casting are described inAppendix
X1.
1.5 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.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of order acceptance form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
B240 Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings
B275 Practice for Codification of Certain Nonferrous Metals and Alloys, Cast and Wrought
B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B899 Terminology Relating to Non-ferrous Metals and Alloys
1
This specification is under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is the direct responsibility of Subcommittee B02.04 on Zinc
and Cadmium.
´1
CurrenteditionapprovedAprilOct.1,2010.PublishedMayOctober2010.Originallyapprovedin1931.Lastpreviouseditionapprovedin20092010asB86-09b.B86 - 10 .
DOI: 10.1520/B0086-10E01.10.1520/B0086-10A.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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

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B86 – 10a
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 max 0.7-1.2 2.6-3.3 0.8-1.3 0.5-1.2 2.0-2.5
Iron, max 0.05 0.05 0.05 0.05 0.075 0.075 0.075
Lead, max 0.005 0.003 0.005 0.005 0.006 0.006 0.006
Cadmium, max 0.004 0.002 0.004 0.004 0.006 0.006 0.006
Tin, max 0.002 0.001 0.002 0.0
...