ASTM B86-05

Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings

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:CommonTraditional ASTM&supA; UNS Alloy 3Zamak 3AG 40A&supB;Z33520Alloy 7Zamak 7AG 40BZ33523 Alloy 5Zamak 5AC 41A&supB;Z35531Alloy 2Zamak 2AC 43AZ35541ZA-8ZA-8...Z35636ZA-12ZA-12...Z35631ZA-27ZA-27...Z35841 &supA;See Table 1 , Footnote C.
&supB;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-Aluminum Alloys Z35636, Z35631, and Z35841 are used in the manufacture of both foundry and pressure die castings. These alloys are also fabricated into continuous cast bar stock used for prototyping and screw machine stock.
1.3 The values stated in inch-pound units are to be regarded as the standard.
1.4 Systems of nomenclature used to designate zinc and zinc-aluminum (ZA) alloys used for casting are described in Appendix 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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2005
• 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 B86-04e2 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
• Effective Date: 01-Nov-2005
• Replaced By: ASTM B86-06 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
• Effective Date: 01-Aug-2006
• Referred By: ASTM B252-92(2020) - Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings
• Effective Date: 01-Nov-2005
• Referred By: ASTM E784-89(2022) - Standard Specification for Clamps, Utility, Laboratory, and Holders, Buret and Clamp
• Effective Date: 01-Nov-2005
• Referred By: ASTM F3160-21 - Standard Guide for Metallurgical Characterization of Absorbable Metallic Materials for Medical Implants
• Effective Date: 01-Nov-2005
• 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-Nov-2005
• Referred By: ASTM C1804-20 - Standard Specification for Spun Cast Prestressed Concrete Bases for Tapered Steel Lighting Poles
• Effective Date: 01-Nov-2005
• Referred By: ASTM B949-23 - Standard Specification for General Requirements for Zinc and Zinc Alloy Products
• Effective Date: 01-Nov-2005

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 86 – 05
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die
1
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.
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
B 240 Specification for Zinc and Zinc-Aluminum (ZA)
Common Traditional ASTM UNS
Alloys in Ingot Form for Foundry and Die Castings
B
Alloy 3 Zamak 3 AG 40A Z33520
B 275 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
B 557 Test Methods of Tension Testing Wrought and Cast
ZA-8 ZA-8 . Z35636
Aluminum- and Magnesium-Alloy Products
ZA-12 ZA-12 . Z35631
B 899 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
E47 Test Methods for Chemical Analysis of Zinc Die-
3
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 Systems of nomenclature used to designate zinc and Alloys
zinc-aluminum (ZA) alloys used for casting are described in E 634 Practice for Sampling of Zinc and Zinc Alloys for
Appendix X1. Optical Emission Spectrometric Analysis
1.5 This standard does not purport to address all of the
2.3 North American Die Casting Association (NADCA):
4
safety concerns, if any, associated with its use. It is the NADCA Product Specification Standards for Die Castings
responsibility of the user of this standard to become familiar
2.4 Federal Standard:
5
with all hazards including those identified in the appropriate Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
Material Safety Data Sheet (MSDS) for this product/material
2.5 Military Standard:
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
the ASTM website.
1 3
This specification is under the jurisdiction of ASTM Committee B02 on Withdrawn.
4
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.
5
Current edition approved Nov. 1, 2005. Published December 2005. Originally Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
e2
approved in 1931. Last previous edition approved in 2004 as B 86 - 04 . Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.
*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 ----------------------
B86–05
TABLE 1 Chemical Requirements
A,B,C,D A,B,C,D A,B,C,D A,C,,D A,C,E A,C,E A,C,E
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 3.5-4.3 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 0.020-0.05
...