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    ASTM A608/A608M-06(2012)

    Standard Specification for Centrifugally Cast Iron-Chromium-Nickel High-Alloy Tubing for Pressure Application at High Temperatures

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    1. Scope

    1.1 This specification covers iron-chromium-nickel, high-alloy tubes made by the centrifugal casting process intended for use under pressure at high temperatures.

    1.2 The grades of high alloys detailed in Table 1 are intended for applications requiring strength and resistance to corrosion and scaling at high temperatures.

    1.3 Optional Supplementary Requirements S1 to S11 are provided; these call for additional tests to be made if desired.

    1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of each other. Combining values from the two systems may result in nonconformance with the specification.

    TABLE 1 Chemical Requirements

    GradeComposition, %
    CarbonManganese Silicon Chromium NickelPhosphorus Sulfur Molybdenum
    HC300.250.350.51.00.502.0026304.0 max0.04 max0.04 max0.50 max
    HD500.450.551.50 max0.502.002630470.04 max0.04 max0.50 max
    HE350.300.401.50 max0.502.0026308110.04 max0.04 max0.50 max
    HF300.250.351.50 max0.502.0019239120.04 max0.04 max0.50 max
    HH300.250.351.50 max0.502.00242811140.04 max0.04 max0.50 max
    HH33A0.280.381.50 max0.502.00242612140.04 max0.04 max0.50 max
    HI350.300.401.50 max0.502.00263014180.04 max0.04 max0.50 max
    HK300.250.351.50 max0.502.00232719220.04 max0.04 max0.50 max
    HK400.350.451.50 max0.502.00232719220.04 max0.04 max0.50 max
    HL300.250.351.50 max0.502.00283218220.04 max0.04 max0.50 max
    HL400.350.451.50 max0.502.00283218220.04 max0.04 max0.50 max
    HN400.350.451.50 max0.502.00192323270.04 max0.04 max0.50 max
    HT500.400.601.50 max0.502.00151933370.04 max0.04 max0.50 max
    HU500.400.601.50 max0.502.00172137410.04 max0.04 max0.50 max
    HW500.400.601.50 max0.502.00101458620.04 max0.04 max0.50 max
    HX500.400.601.50 max0.502.00151964680.04 max0.04 max0.50 max

    A Manufacturing control should ensure that this composition contain a minimal amount of ferrite. See Supplementary Requirement S5.

    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

    A342/A342M Test Methods for Permeability of Weakly Magnetic Materials

    A488/A488M Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel

    A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe

    E8 Test Methods for Tension Testing of Metallic Materials

    E21 Test Methods for Elevated Temperature Tension Tests of Metallic Materials

    E94 Guide for Radiographic Examination

    E139 Test Methods for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials

    E142 Method for Controlling Quality of Radiographic Testing

    E151 Recommended Practice for Tension Tests of Metallic Materials at Elevated Temperatures with Rapid Heating and Conventional or Rapid Strain Rates

    E165 Practice for Liquid Penetrant Examination for General Industry

    E340 Test Method for Macroetching Metals and Alloys

    ICS Code

    ICS Number Code 23.040.10 (Iron and steel pipes); 23.040.40 (Metal fittings)

    UNSPSC Code

    UNSPSC Code 31102004(Stainless steel centrifugal casting)

    Referencing This Standard
    Link Here
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    DOI: 10.1520/A0608_A0608M-06R12

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    Citation Format

    ASTM A608 / A608M-06(2012), Standard Specification for Centrifugally Cast Iron-Chromium-Nickel High-Alloy Tubing for Pressure Application at High Temperatures, ASTM International, West Conshohocken, PA, 2012,

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