ASTM B86-10

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: 31-Mar-2010
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.04 - Zinc and Cadmium

Relations

• Replaces: ASTM B86-09b - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
• Effective Date: 01-Apr-2010
• Replaced By: ASTM B86-10e1 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
• Effective Date: 01-Apr-2010
• Referred By: ASTM C1804-20 - Standard Specification for Spun Cast Prestressed Concrete Bases for Tapered Steel Lighting Poles
• Effective Date: 01-Apr-2010
• Referred By: ASTM E784-89(2022) - Standard Specification for Clamps, Utility, Laboratory, and Holders, Buret and Clamp
• Effective Date: 01-Apr-2010
• Referred By: ASTM B949-23 - Standard Specification for General Requirements for Zinc and Zinc Alloy Products
• Effective Date: 01-Apr-2010
• Referred By: ASTM B252-92(2020) - Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings
• Effective Date: 01-Apr-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-Apr-2010
• Referred By: ASTM F3160-21 - Standard Guide for Metallurgical Characterization of Absorbable Metallic Materials for Medical Implants
• Effective Date: 01-Apr-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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 – 10
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* 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:
2
fied and designated as follows: 2.2 ASTM Standards:
A
B240 Specification for Zinc and Zinc-Aluminum (ZA) Al-
Common Traditional ASTM UNS
loys in Ingot Form for Foundry and Die Castings
B
Alloy 3 Zamak 3 AG 40A Z33520
B275 Practice for Codification of Certain Nonferrous Met-
Alloy 7 Zamak 7 AG 40B Z33523
B
als and Alloys, Cast and Wrought
Alloy 5 Zamak 5 AC 41A Z35531
Alloy 2 Zamak 2 AC 43A Z35541
B557 Test Methods for Tension Testing Wrought and Cast
ZA-8 ZA-8 . Z35636
Aluminum- and Magnesium-Alloy Products
ZA-12 ZA-12 . Z35631
B899 Terminology Relating to Non-ferrous Metals and
ZA-27 ZA-27 . Z35841
_________
Alloys
A
See Table 1, Footnote C.
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
E88 Practice for Sampling Nonferrous Metals andAlloys in
in the manufacture of both foundry and pressure die castings.
Cast Form for Determination of Chemical Composition
These alloys are also fabricated into continuous cast bar stock
E527 Practice for Numbering Metals and Alloys in the
used for prototyping and screw machine stock.
Unified Numbering System (UNS)
1.3 The values stated in inch-pound units are to be regarded
E536 Test Methods for ChemicalAnalysis of Zinc and Zinc
as standard. No other units of measurement are included in this
Alloys
standard.
E634 Practice for Sampling of Zinc and Zinc Alloys for
1.4 Systems of nomenclature used to designate zinc and
Optical Emission Spectrometric Analysis
3
zinc-aluminum (ZA) alloys used for casting are described in
2.3 North American Die Casting Association (NADCA):
Appendix X1.
NADCA Product Specification Standards for Die Castings
4
1.5 This standard does not purport to address all of the
2.4 Federal Standard:
safety concerns, if any, associated with its use. It is the
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
4
responsibility of the user of this standard to become familiar
2.5 Military Standard:
with all hazards including those identified in the appropriate
MIL-STD-129 Marking for Shipment and Storage (Military
Material Safety Data Sheet (MSDS) for this product/material
Agencies)
as provided by the manufacturer, to establish appropriate
safety and health practices, and determine the applicability of
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
regulatory limitations prior to use.
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 April 1, 2010. Published May 2010. Originally Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
approved in 1931. Last previous edition approved in 2009 as B86 - 09b. DOI: Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
10.1520/B0086-10. 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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B86–10
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
...

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.
Designation:B86–09b Designation: B86 – 10
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*
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.
1.3 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
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
E8 Test Methods for Tension Testing of Metallic Materials
E23 Test Methods for Notched Bar Impact Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
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.
Current edition approved Oct.April 1, 2009.2010. Published November 2009.May 2010. Originally approved in 1931. Last previous edition approved in 2009 as
B86 - 09ab. DOI: 10.1520/B0086-09b.10.1520/B0086-10.
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

---------------------- Page: 1 ----------------------
B86–10
TABLE 1 Chemical Requirements
A,B,C,D A,B,C,D,E A,B,C,D A,C,,D A,C,EF A,C,EF A,C,EF
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 Z355412 Z35636 Z35631 Z35841
Aluminum 3.7-4.3 3.5-4.3 3.7-4.3 3.7-4.3 8.0-8.8 10.5-11.5 25.0-28.0
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
F F
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
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
G
Copper 0.1 max 0.25 max 0.7-1.2 2.6-3.3 0.8-1.3 0.5-1.2 2.0-2.5
H
E
Copper 0.1
...