ASTM_B_559_-_12_2017.pdf

Designation:B55912(Reapproved 2017)Standard Specification forNickel-Coated,Copper-Clad Steel Wire for ElectronicApplication1This standard is issued under the fixed designation B559;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 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 U.S.Department of Defense.1.Scope1.1 This specification covers nickel-coated,round,copper-clad steel wire for electronic application.1.2 Nickel coatings in mass percentages of the total mass ofthe coated wire are as follows:2,4,7,10,and 27%.Nickel-coated wire having different minimum mass percent-ages of nickel may be obtained by mutual agreement betweenthe manufacturer and the purchaser.For information purposes,the thickness of coating in microinches provided by thepercentages listed above is shown in Table 1.1.3 Four classes of nickel-coated,copper-clad steel wire arecovered as follows:1.3.1 Class N30HSNominal 30%conductivity,harddrawn.1.3.2 Class N30ANominal 30%conductivity,annealed.1.3.3 Class N40HSNominal 40%conductivity,harddrawn.1.3.4 Class N40ANominal 40%conductivity,annealed.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4.1 ExceptionThe SI values for resistivity are to beregarded as standard.1.5 The following safety hazards caveat pertains only to thetest method described in this specification.This standard doesnot purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.(WarningConsideration should be given to toxicityand flammability when selecting solvent cleaners.)1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsB258 Specification for Nominal Diameters and Cross-SectionalAreas ofAWG Sizes of Solid Round Wires Usedas Electrical ConductorsB452 Specification for Copper-Clad Steel Wire for Elec-tronic ApplicationE75 Test Methods for Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc Alloys(Withdrawn 2010)32.3 American Chemical Society:4Standard Reagents Tests2.4 NIST Standard:5NBS Handbook 100 Copper Wire Tables3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 lotany amount of wire of one class and size pre-sented for acceptance at one time,such amount,however,notto exceed 10 000 lb(4500 kg)(Note 1).1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.06 onBi-Metallic Conductors.Current edition approved April 1,2017.Published April 2017.Originallyapproved in 1972.Last previous edition approved in 2012 as B559 12.DOI:10.1520/B0559-12R17.2For 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 approved version of this historical standard is referenced onwww.astm.org.4Reagent Chemicals,American Chemical Society Specifications,AmericanChemical Society,Washington,DC.For suggestions on the testing of reagents notlisted by the American Chemical Society,see Analar Standards for LaboratoryChemicals,BDH Ltd.,Poole,Dorset,U.K.,and the United States Pharmacopeiaand National Formulary,U.S.Pharmaceutical Convention,Inc.(USPC),Rockville,MD.5Available from National Institute of Standards and Technology(NIST),100Bureau Dr.,Stop 1070,Gaithersburg,MD 20899-1070,http:/www.nist.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis 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(TBT)Committee.1 NOTE1Alot should comprise material taken from a product regularlymeeting the requirements of this specification.Inspection of indivi