1、Designation:B41516Standard Specification forHard-Drawn Aluminum-Clad Steel Wire1This standard is issued under the fixed designation B415;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 parenthese
2、s 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 four conductivities of bare,hard-drawn,round,alu
3、minum-clad steel wire for general usefor electrical purposes in sizes 0.2043 to 0.0808 in.incl(4 to 12AWG)(Note 1).This specification does not apply to wires usedas reinforcement in ACSR conductors.(See SpecificationB502.)NOTE1Wire ordered to this specification is not intended for redraw-ing.If wire
4、 is desired for this purpose,the manufacturer shall beconsulted.1.2 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.2.Referenced Documents
5、2.1 The following documents of the issue in effect on thedate of material purchase form a part of this Specification to theextent referenced herein.2.2 ASTM Standards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsB502 Specification for Aluminum-Clad Steel Core Wire forUse in Over
6、head Electrical Aluminum Conductors3.Ordering Information3.1 Orders for material under this specification shall includethe following information:3.1.1 Quantity and conductivity of each size,3.1.2 Wire size:diameter in inches(see 7.1 and Table 1),3.1.3 Method of measuring elongation if other than 5.3
7、(optional),3.1.4 Special package marking if required(Section 16),and3.1.5 Package size(see 17.1),and3.1.6 Place of inspection if other than place of manufacture(Section 14).4.Material4.1 The wire shall be composed of a steel core with asubstantially uniform and continuous aluminum covering thor-ough
8、ly bonded to it.The drawn wire shall have the propertiesand characteristics prescribed in this specification.5.Tensile Properties5.1 The wire shall conform to the tensile requirementsprescribed in Table 1(Note 2).In computing tensile strength,the actual diameter of the finished wire shall be used.NO
9、TE2The approximate properties of standard AWG sizes ofhard-drawn aluminum-clad steel wire are shown in Table 2 for theinformation of the user of this specification.5.2 Wire of a nominal diameter that exceeds a size listed inTable 1 shall conform to the tensile requirements of the nextlarger diameter
10、.5.3 Elongation shall be determined by an extensometersuitable for measuring elongation in 10 in.(250 mm)andequipped with a vernier reading to 0.01 in.(0.25 mm).It shallbe attached to the test specimen at a tensile load of 10%of therated strength.The elongation shall be observed while applyinga tens
11、ion load to the specimen.The reading at the time offracture shall be taken as the elongation of the specimen.Theelongation thus determined shall be not less than 1.5%in 10in.Tests shall be disregarded in which the extensometerreading is less than 1.5%and in which the fracture does notoccur between t
12、he extensometer attachments and at least 1 in.(25.0 mm)from the two attachments.In this case anothersample from the same reel or coil shall be tested.5.4 When agreed upon by the manufacturer and thepurchaser,the elongation may be determined by measurementsmade between the jaws of the testing machine
13、.The zero lengthshall be the distance between the jaws when a load equal to10%of the specified tensile strength shall have been appliedand the final length shall be the distance between the jaws atthe time of rupture.The zero length shall be as near 60 in.(1.52m)as practicable.The elongation thus de
14、termined shall be not1This 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 1,2016.Published May 2016.Originallyapproved in 1964.Last previous edition
15、approved in 2013 as B415 98(2013).DOI:10.1520/B0415-16.2For 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.Copyright A
16、STM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 less than 1.4%.Tests in which the elongation is less than 1.4%and in which the fracture occurs at or within 1 in.(25.4 mm)of the jaws shall be disregarded.In this case another samplefrom the same reel or coil shall be tested.6.Resistance6.1 The electrical resistance of the wire(Note 2 and Note 3)shall be determined by resistance measurements and maximumresistance shall be based on the nominal diame
