ASTM B640-12

Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service

ABSTRACT
This specification establishes the requirements for welded copper for air conditioning and refrigeration service for use in connections, repairs, and alterations. The material of manufacture shall be sheet or strip of Copper Alloy UNS No. C10100, or C10200, or C12000, or C12200 of such purity and soundness as to be suitable for processing into welded tube to meet the properties prescribed. The product shall be manufactured by forming the material into a tubular shape on a suitable forming mill and welded using an automatic process. The product shall be cold worked to the finished size and wall thickness and subsequently annealed to meet the temper properties specified. The material shall conform to the chemical compositional requirements for the Copper UNS No. designation specified. Tensile strength test, expansion test, microscopical examination, hydrogen embrittlement susceptibility, flattening test, reverse bend test, electromagnetic test, and cleanness test shall be made to conform to specified requirements.
SCOPE
1.1 This specification establishes the requirements for welded copper tube for air conditioning and refrigeration service for use in connections, repairs, and alterations. The tube shall be made from one of the following coppers:
Copper UNS No.Previously Used DesignationType of Copper   C10100OFEOxygen-free electronic C10200OFOxygen-free without-residual oxidants C12000DLPPhosphorus-deoxidized, low-residual phosphorus C12200DHPPhosphorus-deoxidized, high-residual phosphorus    
Note 1—Fittings used for soldered or brazed connections in air conditioning and refrigeration systems are described in ASME Standard B 16.22.
Note 2—The assembly of copper tubular systems by soldering is described in Practice B828.
Note 3—Solders for joining copper tubular systems by descirbed in Specification B32. The requirements for acceptable fluxes for these systems are described in Specification B813.  
1.2 Copper UNS No. C12200 shall be furnished, unless otherwise specified. The copper tube shall be supplied in annealed coils or drawn temper straight lengths.
1.3 Units—Values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units which are provided for information only and are not considered standard.
1.4 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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2012
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.04 - Pipe and Tube

Relations

• Replaces: ASTM B640-07 - Standard Specification for Welded Copper Tube for Air Conditioning and Refrigeration Service
• Effective Date: 01-Apr-2012
• Referred By: ASTM B828-16 - Standard Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings
• Effective Date: 01-Apr-2012

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B640 −12
StandardSpecification for
Welded Copper Tube for Air Conditioning and Refrigeration
1
Service
This standard is issued under the fixed designation B640; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 This specification establishes the requirements for
bility of regulatory limitations prior to use.
welded copper tube for air conditioning and refrigeration
serviceforuseinconnections,repairs,andalterations.Thetube
2. Referenced Documents
shall be made from one of the following coppers:
2
2.1 ASTM Standards:
Copper UNS Previously Type of
B32Specification for Solder Metal
No. Used Copper
Designation
B153Test Method for Expansion (Pin Test) of Copper and
Copper-Alloy Pipe and Tubing
C10100 OFE Oxygen-free
electronic B170Specification for Oxygen-Free Electrolytic Copper—
C10200 OF Oxygen-free
Refinery Shapes
without-
B577TestMethodsforDetectionofCuprousOxide(Hydro-
residual
oxidants gen Embrittlement Susceptibility) in Copper
C12000 DLP Phosphorus-
B601ClassificationforTemperDesignationsforCopperand
deoxidized,
Copper Alloys—Wrought and Cast
low-residual
phosphorus B813Specification for Liquid and Paste Fluxes for Solder-
C12200 DHP Phosphorus-
ing of Copper and Copper Alloy Tube
deoxidized,
B828Practice for Making Capillary Joints by Soldering of
high-residual
phosphorus
Copper and Copper Alloy Tube and Fittings
B846Terminology for Copper and Copper Alloys
NOTE 1—Fittings used for soldered or brazed connections in air
B900Practice for Packaging of Copper and Copper Alloy
conditioning and refrigeration systems are described in ASME Standard
Mill Products for U.S. Government Agencies
B16.22.
B968/B968MTest Method for Flattening of Copper and
NOTE 2—The assembly of copper tubular systems by soldering is
Copper-Alloy Pipe and Tube
described in Practice B828.
E3Guide for Preparation of Metallographic Specimens
NOTE 3—Solders for joining copper tubular systems by descirbed in
Specification B32. The requirements for acceptable fluxes for these
E8/E8MTest Methods for Tension Testing of Metallic Ma-
systems are described in Specification B813.
terials
1.2 Copper UNS No. C12200 shall be furnished, unless E29Practice for Using Significant Digits in Test Data to
otherwise specified. The copper tube shall be supplied in Determine Conformance with Specifications
annealed coils or drawn temper straight lengths. E53Test Method for Determination of Copper in Unalloyed
Copper by Gravimetry
1.3 Units—Values stated in inch-pound units are to be
E62Test Methods for Chemical Analysis of Copper and
regarded as standard. The values given in parentheses are
3
CopperAlloys(PhotometricMethods)(Withdrawn2010)
mathematical conversions to SI units which are provided for
E243PracticeforElectromagnetic(Eddy-Current)Examina-
information only and are not considered standard.
tion of Copper and Copper-Alloy Tubes
1.4 This standard does not purport to address all of the
E255Practice for Sampling Copper and Copper Alloys for
safety concerns, if any, associated with its use. It is the
1 2
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
and Tube. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2012. Published May 2012. Originally the ASTM website.
3
approved in 1978. Last previous edition approved in 2007 as B640–07. DOI: The last approved version of this historical standard is referenced on
10.1520/B0640-12. 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

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B640−12
the Determination of Chemical Composition 5.2.1 The product shall be manufactured by forming the
E527Practice for Numbering Metals and Alloys in the material into a tubular shape on a suitable forming mill and
Unified Numbering System (UNS) welded using an automatic process.
4
5.2.2 The product shall be cold worked to the finished size
2.2 ASME Standards:
and wall thickness and subsequently annealed, when required,
B16.22Wrought Copper and Copper Alloy Solder Joint
to meet the temper properties specified.
Pressure Fittings
5.2.3 The pr
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:B640–07 Designation: B640 – 12
Standard Specification for
Welded Copper Tube for Air Conditioning and Refrigeration
1
Service
This standard is issued under the fixed designation B640; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification establishes the requirements for welded copper tube for air conditioning and refrigeration service for use
in connections, repairs, and alterations. The tube shall be made from one of the following coppers:
Copper UNS Previously Type of Cop-
No. Used Designa- per
tion
C10100 OFE Oxygen-free
electronic
C10200 OF Oxygen-free
without-
residual oxi-
dants
C12000 DLP Phosphorus-
deoxidized,
low-residual
phosphorus
C12200 DHP Phosphorus-
deoxidized,
high-residual
phosphorus
NOTE 1—Fittings used for soldered or brazed connections in air conditioning and refrigeration systems are described in ASME Standard B16.22.
NOTE 2—The assembly of copper tubular systems by soldering is described in Practice B828.
NOTE 3—Solders for joining copper tubular systems by descirbed in Specification B32. The requirements for acceptable fluxes for these systems are
described in Specification B813.
1.2 CopperUNSNo.C12200shallbefurnished,unlessotherwisespecified.Thecoppertubeshallbesuppliedinannealedcoils
or drawn temper straight lengths.
1.3 Units—Values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units which are provided for information only and are not considered standard.
1.4 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
2
2.1 ASTM Standards:
B32 Specification for Solder Metal
B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
B170 Specification for Oxygen-Free Electrolytic CopperRefinery Shapes
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
B813 Specification for Liquid and Paste Fluxes for Soldering of Copper and Copper Alloy Tube
B828 Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings
1
This specification is under the jurisdiction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe and
Tube.
Current edition approved April 1, 2007.2012. Published April 2007.May 2012. Originally approved in 1978. Last previous edition approved in 20062007 as B640–00
(2006). B640–07. DOI: 10.1520/B0640-07.10.1520/B0640-12.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail] Annual Book of ASTM Standards
volume information, refer to the standard’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 ----------------------
B640 – 12
B846 Terminology for Copper and Copper Alloys
B900 Practice for Packaging of Copper and Copper Alloy Mill Products for U.S. Government Agencies
B968/B968M Test Method for Flattening of Copper and Copper-Alloy Pipe and Tube
E3 Guide for Preparation of Metallographic Specimens
E88/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)
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)
3
2.2 ASME Standards:
B16.22 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings
3. Terminology
3.1 For definitions of terms related to
...