ASTM B68/B68M-19
Standard Specification for Seamless Copper Tube, Bright Annealed

Standard No.

ASTM B68/B68M-19

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM B68/B68M-19

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 inchpound 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.

ASTM B68/B68M-19 Referenced Document

• ASTM B153 Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
• ASTM B251/B251M Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube*， 2024-04-22 Update
• ASTM B577 Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
• ASTM B601 Standard Classification for Temper Designations for Copper and Copper Alloys-Wrought and Cast
• ASTM B846 Standard Terminology for Copper and Copper Alloys
• ASTM B968/B968M Standard Test Method for Flattening of Copper and Copper-Alloy Pipe and Tube*， 2022-05-01 Update
• ASTM E112 Standard Test Methods for Determining Average Grain Size
• ASTM E243 Standard Practice for Electromagnetic (Eddy-Current) Examination of Copper and Copper-Alloy Tubes
• ASTM E255 Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
• ASTM E2575 Standard Test Method for Determination of Oxygen in Copper and Copper Alloys by Inert Gas Fusion*， 2019-06-15 Update
• ASTM E3 Standard Practice for Preparation of Metallographic Specimens
• ASTM E527 Standard Practice for Numbering Metals and Alloys (UNS)
• ASTM E8/E8M Standard Test Methods for Tension Testing of Metallic Materials*， 2024-01-01 Update

ASTM B68/B68M-19 history

• 2019 ASTM B68/B68M-19 Standard Specification for Seamless Copper Tube, Bright Annealed
• 2011 ASTM B68/B68M-11 Standard Specification for Seamless Copper Tube, Bright Annealed
• 2002 ASTM B68-02 Standard Specification for Seamless Copper Tube, Bright Annealed
• 1999 ASTM B68-99 Standard Specification for Seamless Copper Tube, Bright Annealed
• 1995 ASTM B68-95 Standard Specification for Seamless Copper Tube, Bright Annealed