ASTM B68 / B68M - 11

    Standard Specification for Seamless Copper Tube, Bright Annealed

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

    Book of Standards Volume: 02.01


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    Translated Standard: Russian
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    ASTM B68 / B68M

    Abstract

    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. The tube shall be manufactured by such hot- or cold-working processes as to produce a homogeneous uniform wrought structure in the finished product. The tube shall be cold drawn to the finished size and wall thickness and shall be bright annealed to meet the specified temper. The material shall conform to the chemical composition requirements prescribed and the tube shall be furnished in either of two annealed tempers, light annealed or soft annealed. Grain size and mechanical properties such as tensile strength and elongation shall be determined. The material shall be subjected to expansion and flattening tests to evaluate its performance. An electromagnetic or eddy-current test, a nondestructive test, shall be done as well.

    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.


    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 Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube

    B251M Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube (Metric)

    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

    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

    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)

    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 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)


    DOI: 10.1520/B0068_B0068M-11

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