ASTM B86 - 18

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

    Active Standard ASTM B86 | Developed by Subcommittee: B02.04

    Book of Standards Volume: 02.04


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    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.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers commercial zinc, zinc-aluminum castings and continuous cast bar stock, as designated and specified in Table 1. Eight alloy compositions are specified and designated as follows:

    Common

    Traditional

    ASTM A

    UNS

     

     

     

     

    Alloy 3

    Zamak 3

    AG 40A B

    Z33525

    Alloy 7

    Zamak 7

    AG 40B

    Z33527

    Alloy 5

    Zamak 5

    AC 41A B

    Z35533

    Alloy 2

    Zamak 2

    AC 43A

    Z35545

    ZA-8

    ZA-8

     ...

    Z35638

    ZA-12

    ZA-12

     ...

    Z35633

    ZA-27

    ZA-27

     ...

    Z35841

    ACuZinc 5C

     

     ...

    Z46541

    1.2 Zinc Alloys Z33525, Z33527, Z35533, and Z35545 are used primarily in the manufacture of pressure die castings. Zinc-Aluminum Alloys Z35638, Z35633, 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 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 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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.

    1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    Military Specification

    MIL-P-116

    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 Zinc, Tin and Lead Die Castings

    B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products

    B899 Terminology Relating to Non-ferrous Metals and Alloys

    B949 Specification for General Requirements for Zinc and Zinc Alloy Products

    E8/E8M 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

    E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys

    E634 Practice for Sampling of Zinc and Zinc Alloys for Analysis by Spark Atomic Emission Spectrometry

    Federal Standard

    Fed. Std. No. 123 Marking for Shipment (Civil Agencies)

    Military Standard

    MIL-STD-129 Marking for Shipment and Storage (Military Agencies)


    ICS Code

    ICS Number Code 77.150.60 (Lead, zinc and tin products)

    UNSPSC Code

    UNSPSC Code 11101719(Zinc)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/B0086-18

    Citation Format

    ASTM B86-18, Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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