1、This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(
2、TBT)Committee.Designation:B49-20NTERNATIONALStandard Specification forCopper Rod for Electrical PurposesThis standard is issued under the fixed designation B49;the number immediately following the designation indicates the year of originaladoption or,in the case of revision.the year of last revision
3、.A number in parentheses indicates the year of last reapproval.A superscriptepsilon(e)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*B115 Specification for Electrolytic Copper Cathode1.1
4、 This specification covers the requirements for rod inB170 Specification for Oxygen-Free Electrolytic Copper-diameters from in.to 13s in.(6.4 mm to 35 mm)producedRefinery Shapesfrom high conductivity coppers listed in Table 1,namely,B193 Test Method for Resistivity of Electrical Conductorelectrolyti
5、c tough-pitch,oxygen-free,or fire-refined high con-Materialsductivity coppers,and are suitable for further fabrication intoB224 Classification of Copperselectrical conductors.B577 Test Methods for Detection of Cuprous Oxide(Hydro-gen Embrittlement Susceptibility)in Copper1.2 The values stated in inc
6、h-pound units are to be regardedB846 Terminology for Copper and Copper Alloysas standard.The values given in parentheses are mathematicalE8/E8M Test Methods for Tension Testing of Metallic Ma-conversions to SI units that are provided for information onlyterialsand are not considered standard.E18 Tes
7、t Methods for Rockwell Hardness of Metallic Ma-1.3 The following safety hazards caveat pertains only toterialsSection 13.This standard does not purport to address all of theE29 Practice for Using Significant Digits in Test Data tosafety concerns,if any,associated with its use.It is theDetermine Conf
8、ormance with Specificationsresponsibility of the user of this standard to establish appro-E53 Test Method for Determination of Copper in Unalloyedpriate safety,health,and environmental practices and deter-Copper by Gravimetrymine the applicability of regulatory limitations prior to use.E478 Test Met
9、hods for Chemical Analysis of Copper Alloys1.4 This international standard was developed in accor-E1004 Test Method for Determining Electrical Conductivitydance with internationally recognized principles on standard-Using the Electromagnetic(Eddy Current)Methodization established in the Decision on
10、Principles for theE1606 Practice for Electromagnetic(Eddy Current)Exami-Development of International Standards,Guides and Recom-nation of Copper and Aluminum Redraw Rod for Electri-mendations issued by the World Trade Organization Technicalcal PurposesBarriers to Trade(TBT)Committee.E2575 Test Metho
11、d for Determination of Oxygen in Copperand Copper Alloys by Inert Gas Fusion2.Referenced Documents2.3 Other Document:32.1 The following documents in the current issue of theNBS Handbook 100 Copper Wire TablesBook of Standards form a part of this specification to the extentreferenced herein and defin
12、e materials suitable for use in rod3.Terminologymanufacture:3.1 For definitions of general terms relating to copper and2.2 ASTM Standards:2copper alloys refer to Terminology B846.B5 Specification for High Conductivity Tough-Pitch CopperRefinery Shapes4.Ordering Information4.1 Orders for rod under th
13、is specification shall include thefollowing information:This specification is under the jurisdiction of ASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.07 on4.1.1 ASTM designation and year of issue,Refined Copper.4.1.2 Quantity of each size,Current
14、edition approved April 15,2020.Published May 2020.Originally4.1.3 UNS designation and requirements of copper(Sec-approved in 1923.Last previous edition approved in 2017 as B49-17.DOI:10.1520/B0049-20tions 5-10),2 For referenced ASTM standards.visit the ASTM website,www.astm.org,orcontact ASTM Custom
15、er Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page on3 Available from National Technical Information Service(NTIS),5301 Shawneethe ASTM website.Rd.,Alexandria.VA 22312,http:/www.ntis.gov.*A Summary of Changes section appears
16、 at the end of this standardCopyright ASTM Intemational,100 Barr Harbor Drive,PO Box C700.West Conshohocken.PA 19428-2959.United StatesB49-204.1.4 Finish(Sections 9 and 10).TABLE 1 Chemical Composition4.1.5 Package with or without joints(see 5.3),UNS NumberC11000C11040C10100C102004.1.6 Rod diameter(
17、see 9.2).Copper TypeETPETPOFEBOFC4.1.7 Inspection(Section 15),Copper,min99.90%D99.90%599.99%599.95%0incl silverincl silver4.1.8 Package size(see 19.1),andppmppmppmPpm4.1.9 Special package marking as agreed upon between theTellurium,max22Selenium,max3manufacturer and the purchaser(Section 19).Bismuth
18、,max年51.0g年Group total,max34.2 The following requirements are optional and should beAntimony,maxspecified in the contract or purchase order when required.Arsenic,max5444.2.1 Certification(Section 17),andTin,max2Lead,max4.2.2 Test Report(Section 18).Iron,max年E510Nickel,max10105.Material and Manufactu
19、reSulfur,max15Silver,max卡卡53255.1 The rod shall be fabricated from copper of such qualityOxygen100-6505 max10 maxMaximum65and purity that the finished product shall have the propertiesallowable totaland characteristics prescribed in this specification.Cadmium,max1Phosphorus,max4003NorE 1-The followi
20、ng specifications define materials suitable for use:Zinc,maxClassification B224,or Specification B5,or Specification B115,orManganese,max0.5Specification B170.Fire-Refined CoppersUNS NumberC11020C110255.2 Copper of special qualities,forms,or types,as agreedCopper TypeFRHCFRHCupon between the manufac
21、turer and the purchaser and that willCopper,min99.90%99.90%9incl silverconform to the requirements prescribed in this specificationTellurium,max10may also be used.Selenium,max10Bismuth,max55.3 The rod coils shall be furnished in continuous lengthsGroup total,maxwith or without joints,as ordered.Anti
22、mony,max50Arsenic,max”1Tin,max506.Chemical CompositionLead150-450Iron,max206.1 Each rod type shall conform to the chemical composi-Nickel,max150tion requirements prescribed in Table 1 for the type of copperSulfur,max20Silver,max150ordered(Section 5).Oxygen100-4006.2 By agreement between the manufact
23、urer and theMaximum750allowable totalpurchaser,the addition of silver up to an average of 30 troy ozCadmium,max100per short ton of copper(0.10%)will be considered within thePhosphorus,maxspecification,copper including silver in the chemical analysis,Zinc,max80with no individual silver analysis to ex
24、ceed 35 troy oz per shortManganese,maxton(0.12%)In the case of oxygen-free silver-bearing coppers,ASee13.1.2From Specification B170 Grade 1 copper or equivalent.the designation OFS(oxygen-free,silver-bearing)will be usedC From Specification B170 Grade 2 copper or equivalent.as shown in Classificatio
25、n B224 and will include the UNS Nos.DSee13.1.1.F By difference.See 13.1.2 and 13.1.3.C10400,C10500,and C10700 as defined by the agreed silverF Not including oxygen.content.6.3 Silver-bearing tough-pitch copper corresponds to thedesignation STP(silver-bearing tough-pitch)as shown inTABLE 2 Equivalent
26、 Resistivity and Conductivity ValuesAClassification B224 and to coppers having UNS Nos.C11300,Conductivity at 68F(20C).%IACS100.00101.00Ib/mile2875.20866.53C11400,C11500,andC11600.n-g/m20.153280.151762c mil/ft10.37110.2686.4 Oxygen Content-Oxygen-free copper as described.mm2/m0.01724100.017070herein
27、 is defined as a copper containing not in excess ofuo.in.0.678790.672070.0010%(10 ppm)oxygen and produced without the use ofQ.cm1.72411.7070metallic or other deoxidizersA The equivalent resistivity and conductivity values for 100%IACS(soft copper)were each computed from the fundamental IEC value(1/5
28、8 n.mm2/m)usingconversion factors each accurate to at least seven significant figures.7.Physical Property Requirements7.1 Electrical Resistivity and Conductivity-Both of theseproperties of the copper in the annealed condition(See NoteType of CopperResistivity,max,at 20 CX1.1 and Table 2)shall comply with the maximum andAnnealed,2g/mminimum values of resistivity and conductivity respectively atUNS C10100 only0.15176(101.00%IACS min)20C:All others0.15328(100.00%IACS min)