1、Designation:B64012aStandard Specification forWelded Copper Tube for Air Conditioning and RefrigerationService1This standard is issued under the fixed designation B640;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last r
2、evision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification establishes the requirements forwelded copper tube for air conditioning and refrigerationservice for use in c
3、onnections,repairs,and alterations.The tubeshall be made from one of the following coppers:Copper UNSNo.PreviouslyUsedDesignationType ofCopperC10100OFEOxygen-freeelectronicC10200OFOxygen-freewithout-residualoxidantsC12000DLPPhosphorus-deoxidized,low-residualphosphorusC12200DHPPhosphorus-deoxidized,h
4、igh-residualphosphorusNOTE1Fittings used for soldered or brazed connections in airconditioning and refrigeration systems are described in ASME StandardB 16.22.NOTE2The assembly of copper tubular systems by soldering isdescribed in Practice B828.NOTE3Solders for joining copper tubular systems by desc
5、irbed inSpecification B32.The requirements for acceptable fluxes for thesesystems are described in Specification B813.1.2 Copper UNS No.C12200 shall be furnished,unlessotherwise specified.The copper tube shall be supplied inannealed coils or drawn temper straight lengths.1.3 UnitsValues stated in in
6、ch-pound units are to beregarded as standard.The values given in parentheses aremathematical conversions to SI units which are provided forinformation only and are not considered standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is the
7、responsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B32 Specification for Solder MetalB153 Test Method for Expansion(Pin Test)of Copper andC
8、opper-Alloy Pipe and TubingB170 Specification for Oxygen-Free Electrolytic CopperRefinery ShapesB577 Test Methods for Detection of Cuprous Oxide(Hydro-gen Embrittlement Susceptibility)in CopperB601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastB813 Specification f
9、or Liquid and Paste Fluxes for Solder-ing of Copper and Copper Alloy TubeB828 Practice for Making Capillary Joints by Soldering ofCopper and Copper Alloy Tube and FittingsB846 Terminology for Copper and Copper AlloysB900 Practice for Packaging of Copper and Copper AlloyMill Products for U.S.Governme
10、nt AgenciesB968/B968M Test Method for Flattening of Copper andCopper-Alloy Pipe and TubeE3 Guide for Preparation of Metallographic SpecimensE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications
11、E53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopperAlloys(Photometric Methods)(Withdrawn 2010)3E243 Practice for Electromagnetic(Eddy-Current)Examina-tion of Copper and Copper-Alloy TubesE255 Practice for Sampling Cop
12、per and Copper Alloys for1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition approved Oct.1,2012.Published January 2013.Originallyapproved in 1978.Last previous edition a
13、pproved in 2012 as B640 12.DOI:10.1520/B0640-12A.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approve
14、d version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 the Determination of Chemical CompositionE527 Practice for
15、 Numbering Metals and Alloys in theUnified Numbering System(UNS)2.2 ASME Standards:4B 16.22 Wrought Copper and Copper Alloy Solder JointPressure Fittings3.Terminology3.1 For definitions of terms related to copper and copperalloys,refer to Terminology B846.3.2 Definitions of Terms Specific to This St
16、andard:3.2.1 tube,air-conditioning,na welded copper tube con-forming to a standard series of sizes and to specified internalcleanness requirements,normally furnished in drawn temperstraight lengths,with the ends capped or sealed.3.2.2 tube,refrigeration-service,na welded copper tubeconforming to a standard series of sizes and to special internalcleanness and dehydration requirements,normally furnished insoft temper coils,with ends capped or sealed.4.Ordering Information4.1 Include the following
