ASTM B68-99

    Standard Specification for Seamless Copper Tube, Bright Annealed

    SUPERSEDED (see Active link, below)


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    1. Scope

    1.1 This specification establishes the requirements for bright annealed seamless copper tube suitable for use in refrigeration, oil lines, gasoline lines, etc, 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 may be supplied, unless otherwise specified in the contract or purchase order:

    Copper UNS No. 2 Type of Copper C10200 Oxygen-free without residual deoxidants C10300 Oxygen-free, extra low phosphorus C10800 Oxygen-free, low phosphorus C12000 Phosphorus Deoxidized, low residual phosphorus C12200 Phosphorus Deoxidized, high residual phosphorus

    1.2 Values stated in inch-pound units are the standard except for grain size, which is given in SI units.

    1.3 This specification is the companion to SI Specification B68M; therefore, no SI equivalents are presented in this specification.

    1.4 The following hazard statement pertains only to the test method described in Sections 20.5 and 21.2.6 of this specification: 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 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

    B68M Specification for Seamless Copper Tube, Bright Annealed [Metric]

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

    B251 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 Alloys--Wrought and Cast

    B846 Terminology for Copper and Copper Alloys

    E3 Guide for Preparation of Metallographic Specimens

    E8 Test Methods for Tension Testing of Metallic Material

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

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

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

    E112 Test Methods for Determining the 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 Determination of Chemical Composition

    E527 Practice for Numbering Metals and Alloys (UNS)


    ICS Code

    ICS Number Code 77.150.30 (Copper products)

    UNSPSC Code

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


    DOI: 10.1520/B0068-99

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