ASTM B68 / B68M - 19

    Standard Specification for Seamless Copper Tube, Bright Annealed

    Active Standard ASTM B68 / B68M | Developed by Subcommittee: B05.04

    Book of Standards Volume: 02.01


      Format Pages Price  
    PDF 6 $48.00   ADD TO CART
    Hardcopy (shipping and handling) 6 $48.00   ADD TO CART
    Standard + Redline PDF Bundle 12 $58.00   ADD TO CART



    Abstract

    This specification covers bright annealed seamless copper tube suitable for use in refrigeration,oil lines, gasoline lines, and so forth, where tube with an interior surface essentially free from scale and dirt is required. The material of manufacture shall be billets, cast bars, or tube of the copper UNS No. C10200, C10300, C10800, C12000, or C12200 and shall be of such soundness as to be suitable for processing into the tubular products described. The tube shall be manufactured by such hot- or cold-working process as to produce a homogeneous uniform wrought structure in the finished product. The material shall conform to the required chemical composition specified. The tube shall be furnished in either O50 or O60 annealed tempers. The tube shall have the minimum tensile strength and elongation values as specified when tested. The outside diameter of the tube furnished shall be capable of being expanded to the specified value when tested. The tube shall be capable of being flattened in accordance with the method described. Copper UNS nos. C10200, C12000, and C12200 shall be capable of passing the embrittlement test. Tubes that do not actuate the signaling device of the testing unit shall be considered as conforming to the requirements of the examination.

    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.

    1. Scope

    1.1 This specification establishes the requirements for bright annealed seamless copper tube suitable for use in refrigeration, oil lines, gasoline lines, and so forth, where tube with an interior surface essentially free from scale and dirt is required.

    1.1.1 Tubes made from any of the following Copper UNS No. designations shall be supplied, unless otherwise specified in the contract or purchase order:

    Copper UNS No.2

    Type of Copper

     

     

    C10200

    Oxygen-free

    C10300

    Oxygen-free, (OFXLP)

    C10800

    Oxygen-free, (OFLP)

    C12000

    Phosphorus deoxidized, low residual phosphorus

    C12200

    Phosphorus deoxidized, high residual phosphorus

    1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

    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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    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

    B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing

    B251/B251M Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube

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

    B601 Classification for Temper Designations for Copper and Copper AlloysWrought and Cast

    B846 Terminology for Copper and Copper Alloys

    B968/B968M Test Method for Flattening of Copper and Copper-Alloy Pipe and Tube

    E3 Guide for Preparation of Metallographic Specimens

    E8/E8M Test Methods for Tension Testing of Metallic Materials

    E112 Test Methods for Determining Average Grain Size

    E243 Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes

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

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    E2575 Standard Test Method for Determination of Oxygen in Copper and Copper Alloys


    ICS Code

    ICS Number Code 77.150.30 (Copper products)

    UNSPSC Code

    UNSPSC Code 40182000(Seamless copper tubes); 73181300(Heat treatment services)


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

    DOI: 10.1520/B0068_B0068M-19

    Citation Format

    ASTM B68 / B68M-19, Standard Specification for Seamless Copper Tube, Bright Annealed , ASTM International, West Conshohocken, PA, 2019, www.astm.org

    Back to Top