ASTM B68/B68M-19
(Specification)Standard Specification for Seamless Copper Tube, Bright Annealed
Standard Specification for Seamless Copper Tube, Bright Annealed
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.
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.
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Standards Content (Sample)
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.
Designation:B68/B68M −19
Standard Specification for
1
Seamless Copper Tube, Bright Annealed
This standard is issued under the fixed designation B68/B68M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
3
2.1 ASTM Standards:
1.1 Thisspecificationestablishestherequirementsforbright
annealed seamless copper tube suitable for use in refrigeration, B153 Test Method for Expansion (Pin Test) of Copper and
Copper-Alloy Pipe and Tubing
oil lines, gasoline lines, and so forth, where tube with an
interior surface essentially free from scale and dirt is required. B251/B251M Specification for General Requirements for
Wrought Seamless Copper and Copper-Alloy Tube
1.1.1 Tubes made from any of the following Copper UNS
No. designations shall be supplied, unless otherwise specified B577 Test Methods for Detection of Cuprous Oxide (Hydro-
gen Embrittlement Susceptibility) in Copper
in the contract or purchase order:
2
B601 Classification forTemper Designations for Copper and
Copper UNS No. Type of Copper
Copper Alloys—Wrought and Cast
C10200 Oxygen-free
B846 Terminology for Copper and Copper Alloys
C10300 Oxygen-free, (OFXLP)
B968/B968M Test Method for Flattening of Copper and
C10800 Oxygen-free, (OFLP)
C12000 Phosphorus deoxidized, low residual phosphorus
Copper-Alloy Pipe and Tube
C12200 Phosphorus deoxidized, high residual phosphorus
E3 Guide for Preparation of Metallographic Specimens
1.2 Units—The values stated in either SI units or inch-
E8/E8M Test Methods for Tension Testing of Metallic Ma-
pound units are to be regarded separately as standard. The
terials
values stated in each system are not necessarily exact equiva-
E112 Test Methods for Determining Average Grain Size
lents; therefore, to ensure conformance with the standard, each
E243 Practice for Electromagnetic (Eddy Current) Examina-
system shall be used independently of the other, and values
tion of Copper and Copper-Alloy Tubes
from the two systems shall not be combined.
E255 Practice for Sampling Copper and Copper Alloys for
the Determination of Chemical Composition
1.3 This standard does not purport to address all of the
E527 Practice for Numbering Metals and Alloys in the
safety concerns, if any, associated with its use. It is the
Unified Numbering System (UNS)
responsibility of the user of this standard to establish appro-
E2575 Standard Test Method for Determination of Oxygen
priate safety, health, and environmental practices and deter-
4
in Copper and Copper Alloys (Withdrawn 2017)
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
3. General Requirements
dance with internationally recognized principles on standard-
3.1 The following sections of Specification B251/B251M
ization established in the Decision on Principles for the
are a part of this specification.
Development of International Standards, Guides and Recom-
3.1.1 Terminology, General;
mendations issued by the World Trade Organization Technical
3.1.2 Material and Manufacture;
Barriers to Trade (TBT) Committee.
3.1.3 Workmanship, Finish, and Appearance;
3.1.4 Significance of Numerical Limits;
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
3
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Tube. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved April 1, 2019. Published April 2019. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1922. Last previous edition approved in 2011 as B68/B68M–11. DOI: the ASTM website.
4
10.1520/B0068_B0068M–19. The last approved version of this historical standard is referenced on
2
Refer to Practice E527 for explanation of unified numbering system (UNS). www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B68/B68M−19
3.1.5 Inspection; 6.1.1 The material of manufacture shall be Copper Alloy
3.1.6 Rejection and Rehearing; UNS Nos. C10200, C10300, C10800, C12000, or C12200 of
3.1.7 Certification; such purity
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B68/B68M − 11 B68/B68M − 19
Standard Specification for
1
Seamless Copper Tube, Bright Annealed
This standard is issued under the fixed designation B68/B68M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
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:
2
Copper UNS No. Type of Copper
C10200 Oxygen-free without residual deoxidants
C10200 Oxygen-free
C10300 Oxygen-free, extra low phosphorus
C10300 Oxygen-free, (OFXLP)
C10800 Oxygen-free, low phosphorus
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 mayare not benecessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall
be used independently of the other. Combiningother, and values from the two systems may result in non-conformance with the
standard.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 safety, health, and healthenvironmental 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
3
2.1 ASTM Standards:
B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
B251B251/B251M Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube (Metric)
B0251_B0251M
B251M Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube (Metric) (Withdrawn
4
2017)
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
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipe and
Tube.
Current edition approved Feb. 15, 2011April 1, 2019. Published March 2011April 2019. Originally approved in 1922. Last previous edition approved in 20022011 as
B68 – 02.B68/B68M–11. DOI: 10.1520/B0068_B0068M-11.10.1520/B0068_B0068M–19.
2
Refer to Practice E527 for explanation of unified numbering system (UNS).
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B68/B68M − 19
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
4
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
E112 Test Methods for Determining Average Grain Size
E243 Practice for Electromagnetic (Eddy Current) Examination
...
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