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    ASTM A247-67(1998)

    Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings


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    1. Scope

    1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, and the ductile (nodular) irons.


    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

    E3 Guide for Preparation of Metallographic Specimens

    ASTM Adjunct

    Iron Casting Graphite Microstructure Rating Chart (Wall Chart) Available from ASTM International Headquarters. Order Adjunct No. . Original adjunct produced in 2010.


    ICS Code

    ICS Number Code 77.140.80 (Iron and steel castings)

    UNSPSC Code

    UNSPSC Code 31100000(Castings and casting assemblies)


    Referencing This Standard

    DOI: 10.1520/A0247-67R98

    ASTM International is a member of CrossRef.


    Citation Format

    ASTM A247-67(1998), Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings, ASTM International, West Conshohocken, PA, 1998, www.astm.org

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