ASTM B372-12

    Standard Specification for Seamless Copper and Copper-Alloy Rectangular Waveguide Tube

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    1. Scope

    1.1 This specification establishes the requirements for seamless copper and copper-alloy rectangular tube intended for use as transmission lines in electronic equipment. Five types of material are specified having the following nominal compositions:

    Copper or
    Copper Alloy
    UNS No.

    Used Designation
    Nominal Composition, %


    C10100 Copper, Type OFEA99.99B......
    C10200Copper, Type OFA99.95B......
    C10300Copper, Type OFXLPA99.95B...0.003
    C12000Copper, Type DLPA99.90B...0.008
    bronze, 90 %

    A Types OF, OFE, OFXLP, and DLP are described in Classification B224.

    B Minimum copper percentage.

    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 which are provided for information only and are not considered 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

    B170 Specification for Oxygen-Free Electrolytic CopperRefinery Shapes

    B193 Test Method for Resistivity of Electrical Conductor Materials

    B224 Classification of Coppers

    B428 Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube

    B577 Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper

    B846 Terminology for Copper and Copper Alloys

    E18 Test Methods for Rockwell Hardness of Metallic Materials

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

    E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry

    E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)

    E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition

    E478 Test Methods for Chemical Analysis of Copper Alloys

    Other Document

    ANSI B46.1

    ICS Code

    ICS Number Code 77.150.30 (Copper products)

    UNSPSC Code

    UNSPSC Code 40182000(Seamless copper tubes)

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

    DOI: 10.1520/B0372-12

    Citation Format

    ASTM B372-12, Standard Specification for Seamless Copper and Copper-Alloy Rectangular Waveguide Tube, ASTM International, West Conshohocken, PA, 2012,

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