ASTM B521-98(2004)

    Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes


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    1. Scope

    1.1 This specification covers tantalum and tantalum alloy seamless and welded tubes of the following grades:

    1.1.1 UNS Grade R05400 Unalloyed tantalum, powder-metallurgy consolidation,

    1.1.2 UNS Grade R05200 Unalloyed tantalum, vacuum melted,

    1.1.3 UNS Grade R05252 Tantalum + 2.5 % tungsten alloy, vacuum melted.

    1.1.4 UNS Grade R05255 Tantalum + 10 % tungsten alloy, vacuum melted.

    1.1.5 UNS Grade R05240 Tantalum alloy, 60 % tantalum, 40 % columbium, electron-beam furnace or vacuum arc melt, or both.

    1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.


    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

    E213 Practice for Ultrasonic Testing of Metal Pipe and Tubing

    E426 Practice for Electromagnetic (Eddy Current) Examination of Seamless and Welded Tubular Products, Titanium, Austenitic Stainless Steel and Similar Alloys

    E499 Practice for Leaks Using the Mass Spectrometer Leak Detector in the Detector Probe Mode


    ICS Code

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

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard
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    DOI: 10.1520/B0521-98R04

    Citation Format

    ASTM B521-98(2004), Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes, ASTM International, West Conshohocken, PA, 2004, www.astm.org

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