1、Designation:B113Standard Specification forHard-Drawn Copper Wire1This standard is issued under the fixed designation B1;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the ye
2、ar of last reapproval.Asuperscriptepsilon()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 hard-drawn round copper wirefor electrical purposes.1.2 The values
3、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.1.2.1 ExceptionFor density,resistivity and temperature,the values stated in SI units are to be regard
4、ed as standard.2.Referenced Documents2.1 The following documents of the issue in effect at thetime of reference form a part of this specification to the extentreferenced herein:2.2 ASTM Standards:2B49 Specification for Copper Rod Drawing Stock for Elec-trical PurposesB193 Test Method for Resistivity
5、 of Electrical ConductorMaterialsB258 Specification for Nominal Diameters and Cross-SectionalAreas ofAWG Sizes of Solid Round Wires Usedas Electrical Conductors2.3 Other Documents:NBS Handbook 100 Copper Wire Tables33.Ordering Information3.1 Orders for material under this specification shall include
6、the following information:3.1.1 Quantity of each size,3.1.2 Wire size:diameter in inches(5.3 and Table 1),3.1.3 Type of copper,if special(Section 4),3.1.4 Package size(10.1),3.1.5 Special package marking,if required,and3.1.6 Place of inspection(7.1).4.Materials4.1 The material shall be copper of suc
7、h quality and puritythat the finished product shall have the properties and charac-teristics prescribed in this specification.NOTE1Specification B49 defines the materials suitable for use.5.General Requirements(see Section 8)5.1 Tensile Strength and ElongationThe wire shall con-form to the requireme
8、nts as to tensile strength and elongationprescribed in Table 1(see Explanatory Note 1 and Note 2).Forwire whose nominal diameter is more than 0.001 in.(0.025mm)greater than a size listed in Table 1 and less than that ofthe next larger size,the requirements of the next larger sizeshall apply.5.1.1 Te
9、sts on a specimen containing a joint shall show atleast 95%of the tensile strength give in Table 1.Elongationtests shall not be made on a specimen containing a joint.5.2 ResistivityThe electrical resistivity at 20C shall notexceed the following values:Nominal Diameter,in.Resistivity at 20C,lb/mile2g
10、/m20.460 to 0.325(11.684 to 8.255 mm),incl900.770.15775Under 0.325 to 0.0403(8.255 to 1.024 mm),incl910.150.159405.3 Dimensions and Permissible VariationsWithin therange of diameters given in Table 1,the wire shall not varyfrom the specified diameter by more than plus and minus 1%,expressed to the n
11、earest 0.0001 in.(or 0.001 mm)(seeExplanatory Note 4).5.4 JointsNo joints shall be made in the completed wire(Explanatory Note 3).Joints in the wire and rods made prior tofinal drawing shall be in accordance with the best commercialpractice and shall conform to the requirements prescribed in5.1.5.5
12、FinishThe wire shall be free of all imperfections notconsistent with the best commercial practice.1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.04 onConductors of Copper and Copper Alloys.Current editi
13、on approved Oct.1,2013.Published October 2013.Originallyapproved in 1909.Last previous edition approved in 2012 as B1 12.DOI:10.1520/B0001-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume
14、information,refer to the standards Document Summary page onthe ASTM website.3Available from National Technical Information Service(NTIS),5301 ShawneeRd.,Alexandria,VA 22312,http:/www.ntis.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States
15、1 6.Test Methods6.1 Tensile Strength and Elongation:6.1.1 Obtain the tensile strength,expressed in pounds persquare inch,by dividing the maximum load carried by thespecimen during the tension test,by the original cross-sectionalarea of the specimen.Tensile strength and elongation may bedetermined si
16、multaneously on the same specimen.6.1.2 Determine the elongation of the wire as the permanentincrease in length due to the breaking of the wire in tension,measured between gage marks placed originally 10 in.(250mm)apart upon the test specimen(see Explanatory Note 5).6.1.3 If any part of the fracture takes place outside the gagemarks or in the jaws of the testing machine,or if an examina-tion of the specimen indicates a flaw,the value obtained maynot be representative of the material.In such case