1、Designation:B44712aStandard Specification forWelded Copper Tube1This standard is issued under the fixed designation B447;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the
2、year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This specification establishes the requirements forwelded copper tube with a longitudinal sea
3、m free of filler metalproduced from sheet or strip of the following coppers:Copper UNS Nos.Type of CopperC10100Oxygen-free electronicC10200Oxygen-freeC10300Oxygen-free,extra low phosphorusC10800Oxygen-free,low phosphorusC11000Electrolytic tough pitchC12000Phosphorus deoxidized,low residual phosphoru
4、sC12200Phosphorus deoxidized,high residual phosphorusC14200Phosphorus deoxidized,arsenical1.2 Unless otherwise specified in the contract or purchaseorder,product furnished of any listed copper,with the excep-tion of copper C11000,shall be considered acceptable.1.2.1 Copper C11000 welded tube shall n
5、ot be used inapplications where hydrogen embrittlement during heating is aconcern.1.3 UnitsValues stated in inch-pound units are to beregarded as standard except for grain size,which is given in SIunits.The values given in parentheses are mathematicalconversions to SI units,which are provided for in
6、formationonly and are not considered standard.1.4 The following hazard caveat pertains only to Section 13of this specification:This standard does not purport to addressall of the safety concerns,if any,associated with its use.It isthe responsibility of the user of this standard to establishappropria
7、te safety and health practices and determine theapplicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B153 Test Method for Expansion(Pin Test)of Copper andCopper-Alloy Pipe and TubingB170 Specification for Oxygen-Free Electrolytic CopperRefinery ShapesB193 Te
8、st Method for Resistivity of Electrical ConductorMaterialsB577 Test Methods for Detection of Cuprous Oxide(Hydro-gen Embrittlement Susceptibility)in CopperB601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysE3 Guide for
9、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 SpecificationsE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE62 Test Methods for Chem
10、ical Analysis of Copper andCopperAlloys(Photometric Methods)(Withdrawn 2010)3E112 Test Methods for Determining Average Grain SizeE243 Practice for Electromagnetic(Eddy-Current)Examina-tion of Copper and Copper-Alloy TubesE255 Practice for Sampling Copper and Copper Alloys forthe Determination of Che
11、mical CompositionE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)3.Terminology3.1 For definitions of terms related to copper and copperalloys refer to Terminology B846.3.2 Definitions of Terms Specific to This Standard:3.2.1 lengths,mill,nstraight lengths,including e
12、nds thatare conveniently manufactured in the mills.3.2.1.1 DiscussionFull-length pieces are usually 10,12,or20 ft(3.0,3.7,or 6.1 m)and subject to established lengthtolerances.3.2.2 lengths,stock,nstraight lengths that are mill cut andstored in advance of orders.1This specification is under the juris
13、diction 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 1967.Last previous edition approved in 2012 as B447 12.DOI:10.1520/B0447-12A.2For reference
14、d 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 approved version of this historical standard is referenced onwww.astm.
15、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 3.2.2.1 DiscussionStock lengths are usually 6 to 20 ft(1.8to 6.1 m)and subject to established tolerances.4.Classification
16、4.1 The following types of welded tube are manufacturedunder this specification:4.1.1 As-WeldedAcondition created as a result of formingsheet or plate into tubular form and welding without subse-quent heat treatment or cold work.4.1.2 Welded and AnnealedWelded tube annealed to pro-duce a uniform grain size appropriate to the specified annealedtemper.4.1.3 Welded and Cold DrawnWelded tube with internaland external flash removed by scarfing or the internal flashdisplaced and subsequently cold draw
