ASTM B652/B652M-10

    Standard Specification for Niobium-Hafnium Alloy Ingots


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    1. Scope

    1.1 This specification covers hafnium alloyed niobium ingots prepared by vacuum- or plasma- arc melting or electron-beam furnace melting, or a combination of these methods, to produce consolidated metal for processing to various mill shapes.

    1.2 The material covered by this specification is Grade R04295, niobium-base alloy containing approximately 10 % hafnium and 1 % titanium.

    1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with 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

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E2626 Guide for Spectrometric Analysis of Reactive and Refractory Metals


    ICS Code

    ICS Number Code 77.150.99 (Other products of non-ferrous metals)

    UNSPSC Code

    UNSPSC Code 30266216(Non ferrous alloy extrusion ingot)


    Referencing This Standard
    Link Here
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    DOI: 10.1520/B0652_B0652M-10

    Citation Format

    ASTM B652 / B652M-10, Standard Specification for Niobium-Hafnium Alloy Ingots, ASTM International, West Conshohocken, PA, 2010, www.astm.org

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