ASTM B983-12

    Standard Specification for Precipitation Hardened or Cold Worked, Seamless Nickel Alloy Pipe and Tube

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    1. Scope

    1.1 This specification covers high strength, seamless pipe and tube of nickel alloys (UNS N07022, UNS N07725, and UNS N07740) as shown in Table 1.

    1.2 Pipe and tube shall be supplied in the cold worked or cold worked and precipitations hardened or solution annealed plus precipitation hardened and descaled conditions. When atmosphere control is used, descaling is not necessary.

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 Safety Data Sheet (MSDS) 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.

    TABLE 1 Chemical Requirements

    ElementUNS N07022UNS N07725UNS N07740
    Carbon0.010 max0.03 max0.0050.08
    Manganese0.5 max0.35 max1.0 max
    Silicon0.08 max0.20 max1.0 max
    Phosphorous0.025 max0.015 max0.03 max
    Sulfur0.015 max0.010 max0.03 max
    Chromium20.021.419.022.523.525.5
    Cobalt1.0 max...15.022.0
    Molybdenum15.517.47.009.502.0 max
    Columbium...2.754.00...
    Titanium...1.001.700.52.5
    Aluminum0.5 max0.35 max0.22.0
    Zirconium.........
    Boron0.006 max...0.00060.006
    Iron1.8 maxRemainderA3.0 max
    Copper0.5 max...0.50 max
    NickelRemainderA55.059.0RemainderA
    Tantalum0.2 max......
    Tungsten0.8 max......
    Columbium + Tantalum......0.502.5

    A The element may be determined arithmetically by difference.


    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

    B829 Specification for General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube

    B899 Terminology Relating to Non-ferrous Metals and Alloys

    E8 Test Methods for Tension Testing of Metallic Materials

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


    ICS Code

    ICS Number Code 23.040.15 (Non-ferrous metal pipes)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/B0983-12

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