ASTM B603-07(2013)

    Standard Specification for Drawn or Rolled Iron-Chromium-Aluminum Alloys for Electrical Heating Elements


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    1. Scope

    1.1 This specification covers annealed, drawn, or rolled shapes for electrical heating and resistance purposes of alloys consisting mainly of iron, chromium, and aluminum as detailed in Table 1.

    TABLE 1 Chemical Requirements

    Class

    Resistivity Range

    Composition Range, %

     

    Ω·cmil/ft

    μΩ·cm

    Al

    Cr

    I

    825 to 920

    135 to 150

    5.00 to 6.00

    20 to 24

    IIA

    795 to 880

    130 to 144

    4.75 to 5.75

    20 to 24

    IIB

    770 to 855

    130 to 144

    4.00 to 5.25

    20 to 24

    III

    715 to 785

    119 to 130

    3.75 to 4.75

    13 to 16

    IV

    665 to 735

    111 to 122

    2.75 to 3.75

    12 to 15


    1.2 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.

    1.3 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.


    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

    A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

    B63 Test Method for Resistivity of Metallically Conducting Resistance and Contact Materials

    B70 Test Method for Change of Resistance With Temperature of Metallic Materials for Electrical Heating

    B78 Test Method of Accelerated Life of Iron-Chromium-Aluminum Alloys for Electrical Heating


    ICS Code

    ICS Number Code 77.100 (Ferroalloys)

    UNSPSC Code

    UNSPSC Code 11171600(Stainless steel alloys)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/B0603-07R13

    Citation Format

    ASTM B603-07(2013), Standard Specification for Drawn or Rolled Iron-Chromium-Aluminum Alloys for Electrical Heating Elements, ASTM International, West Conshohocken, PA, 2013, www.astm.org

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