ASTM B372 - 12a

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

    Active Standard ASTM B372 | Developed by Subcommittee: B05.04

    Book of Standards Volume: 02.01


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    Abstract

    This specification covers seamless copper and copper-alloy rectangular waveguide tube intended for use as transmission lines in electronic equipment. Four types of material are specified having the following nominal compositions: C10200, C10300, C12000, and C22000. The copper and copper-alloy tubes shall be finished by such cold-working and annealing operations as are necessary to meet the required properties. The material shall conform to the chemical requirements specified. The material shall conform to the Rockwell hardness requirements prescribed. The test specimens of copper UNS nos. C10200, C10300, and C12000 shall be free of cuprous oxide. It is to be expected that samples of Copper UNS Nos. C10200, C10300, and C12000 shall be capable of passing the embrittlement test. It is to be expected that samples of copper UNS nos. C10200, C10300, and C12000 will conform to the prescribed electrical resistivity requirements. Samples for chemical analysis shall be taken accordingly.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    Significance and Use

    15.1 For purposes of determining compliance with the specified limits for requirements of chemical composition, hardness, and electrical resistivity, an observed value or a calculated value shall be rounded to the nearest unit in the last right-hand place of the figures of the specified limit in accordance with the rounding method of Practice E29.

    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:2

    Copper or
    Copper Alloy
    UNS2 No.


    Previously
    Used Designation

    Nominal Composition, %


    Copper


    Zinc

    Phos-
    phorus

    C10100

    Copper, Type OFEA

    99.99B

    ...

    ...

    C10200

    Copper, Type OFA

    99.95B

    ...

    ...

    C10300

    Copper, Type OFXLPA

    99.95B

    ...

    0.003

    C12000

    Copper, Type DLPA

    99.90B

    ...

    0.008

    C22000

    Commercial
       bronze, 90 %

    90

    10

    ...

    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 Copper--Refinery 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 Standard

    ANSIB46.1 Surface Roughness, Waviness, and Lay Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.


    ICS Code

    ICS Number Code 77.150.30 (Copper products)

    UNSPSC Code

    UNSPSC Code 40182000(Seamless copper tubes)


    Referencing This Standard

    DOI: 10.1520/B0372-12A

    ASTM International is a member of CrossRef.

    Citation Format

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

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