ASTM A319-71(2006)

    Standard Specification for Gray Iron Castings for Elevated Temperatures for Non-Pressure Containing Parts

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    1. Scope

    1.1 This specification covers three classes of gray iron suitable for castings exposed to temperatures encountered in such service as grate bars, stoker links, stoker parts, oil still furnace parts, firebox parts, ingot molds, glass molds, caustic pots, and metal melting pots.

    Note 1—This specification is general, covering cast irons normally used for the above types of service, at temperatures as high as 1400oF (760oC). It is not intended to imply that all three classes are suitable throughout this entire temperature range without regard to actual service stresses. Some are suitable for long service at the lower temperatures only, unless low stresses are involved.

    1.2 The three classes of gray iron covered by this specification are as follows:

    1.2.1 Class I, possessing superior resistance to thermal shock,

    1.2.2 Class II, possessing average resistance to thermal shock and a moderately good tensile strength (tensile strengths above 30 000 psi (207 MPa) may be expected), and

    1.2.3 Class III, possessing a higher tensile strength than either Classes I or II (tensile strengths as high as 40 000 psi (276 MPa) may be expected).

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


    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

    A48/A48M Specification for Gray Iron Castings


    ICS Code

    ICS Number Code 77.140.80 (Iron and steel castings)

    UNSPSC Code

    UNSPSC Code 31101617(Grey iron sand casting)


    DOI: 10.1520/A0319-71R06

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