ASTM B240-03

    Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings


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    1. Scope

    1.1 This specification covers commercial zinc and zinc-aluminum (ZA) alloys in ingot form for remelting for the manufacture of pressure die castings and foundry castings as designated and specified in . Seven alloy compositions are specified, designated as follows:

    UNSAASTMACommonTraditional
    Z33521AG 40AAlloy 3Zamak 3
    Z33522AG 40BAlloy 7Zamak 7
    Z35530AC 41AAlloy 5Zamak 5
    Z35540AC 43AAlloy 2Zamak 2
    Z35635ZA-8
    Z35630ZA-12
    Z35840ZA-27

    1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are used primarily for remelting in the manufacture of pressure die castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840 are used for remelting in the manufacture of both foundry and pressure die castings. Castings made from these ingots are specified in Specification B 86, Standard Specification for Zinc and Zinc-Aluminum Alloys for Foundry and Die Castings.

    1.3 The values stated in inch-pound units are to be regarded as standard.

    1.4 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 Data Sheet 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings

    B275 Practice for Codification of Certain Nonferrous Metals and Alloys, Cast and Wrought

    B897 Specification for Configuration of Zinc and Zinc Alloy Jumbo Block and Half Block Ingot

    B899 Terminology Relating to Non-ferrous Metals and Alloys

    B908 Practice for the Use of Color Codes for Zinc Casting Alloy Ingot

    B949 Specification for General Requirements for Zinc and Zinc Alloy Products

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

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

    E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys

    ISO Standards

    ISO301 Zinc Alloy Ingots Intended for Casting

    ISO3815–1 Zinc and zinc alloys -- Part 1: Analysis of solid samples by optical emission spectrometry.

    ISO3815–2 Zinc and zinc alloys -- Part 2: Analysis by inductively coupled plasma optical emission spectrometry.


    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/B0240-03

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM B240-03, Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings, ASTM International, West Conshohocken, PA, 2003, www.astm.org

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