ASTM A991/A991M-98

    Standard Test Method for Conducting Temperature Uniformity Surveys of Furnaces Used to Heat Treat Steel Products


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    1. Scope

    1.1 This test method covers the procedures used to conduct a temperature uniformity survey on a furnace used to heat treat steel products. This method is used to determine the capability of the furnace to meet the permissible temperature variation specified in the applicable product specification, or as agreed to by the purchaser and supplier of heat treat services. Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are defined in this test method.


    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

    E207 Test Method for Thermal EMF Test of Single Thermoelement Materials by Comparison with a Reference Thermoelement of Similar EMF-Temperature Properties

    E220 Test Method for Calibration of Thermocouples By Comparison Techniques

    E230 Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples

    E608/E608M Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples

    SAE Standard

    AMS 2750 Pyrometry


    ICS Code

    ICS Number Code 25.200 (Heat treatment)

    UNSPSC Code

    UNSPSC Code 23281603(Heat treating age hardening furnace )


    Referencing This Standard
    Link Here
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    DOI: 10.1520/A0991_A0991M-98

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    Citation Format

    ASTM A991 / A991M-98, Standard Test Method for Conducting Temperature Uniformity Surveys of Furnaces Used to Heat Treat Steel Products, ASTM International, West Conshohocken, PA, 1998, www.astm.org

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