ASTM B624-07(2017) Standard Specification for High-Strength, High-Conductivity Copper-Alloy Wire for Electronic Application.pdf

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1、Designation: B624 07 (Reapproved 2017)Standard Specification forHigh-Strength, High-Conductivity Copper-Alloy Wire forElectronic Application1This standard is issued under the fixed designation B624; the number immediately following the designation indicates the year oforiginal adoption or, in the ca

2、se 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

3、 specification covers high-strength, high-conductivity round copper-alloy wire 0.00099 to 0.0720 in.0.025 to 1.829 mm in diameter, used for electronic hookupwire. The tensile strength of the wire is 60 ksi 414 MPaminimum and the electrical conductivity at 20C is 85 % IACSminimum.1.2 The values state

4、d in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate sa

5、fety, health and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of

6、 International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsE8 Test Methods for Tension Testing of Metallic Material

7、s3. Ordering Information3.1 Orders for wire furnished to this specification shallinclude the following information:3.1.1 Quantity (pounds or kilograms),3.1.2 Wire size (Table 1),3.1.3 Place of inspection (Section 7),3.1.4 Package size (Section 9), and3.1.5 Special marking, if required (Section 9).4.

8、 Materials and Manufacture4.1 The wire shall be copper alloy of such quality and puritythat the finished product shall have the properties and charac-teristics prescribed in this specification. Chemical analysis of aspecific alloy is not a requirement of this specification unlessdefinite agreement i

9、s reached between the manufacturer andthe purchaser in the placing of individual orders.5. General Requirements5.1 Tensile PropertiesThe minimum breaking strengthand elongation of the conductor shall be as prescribed in Table1. Breaking strengths of intermediate sizes may be calculatedin accordance

10、with Explanatory Note 1.5.2 Electrical ResistanceThe electrical resistance of thewire at a temperature of 20C shall not exceed the values inTable 1. Resistances of intermediate sizes may be calculated inaccordance with Explanatory Note 2.5.3 DiameterThe wire size shall be expressed as thediameter of

11、 the wire in decimal fractions of an inch to thenearest 0.0001 in. 0.003 mm. For diameters under 0.0100 in.0.254 mm, the wire shall not vary from the specified diameterby more than 60.0001 in. 0.003 mm. For diameters 0.0100in. 0.254 mm and over, the wire shall not vary from thespecified diameter by

12、more than 61 %, expressed to thenearest 0.0001 in. 0.003 mm.5.4 JointsJoints necessary to processing shall be of suchquality that all requirements of this specification are met.5.5 FinishThe finished material shall be free of defectsthat detract from the normal end use or longevity of theproduct. Th

13、e material shall be smooth, bright, clean, and free oflaps, slivers, seams, scratches, and other imperfections notconsistent with good commercial practice.1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.

14、04 onConductors of Copper and Copper Alloys.Current edition approved Sept. 1, 2017. Published September 2017. Originallyapproved in 1977. Last previous edition approved in 2012 as B624 07 (2012).DOI: 10.1520/B0624-07R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact

15、ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard

16、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.16. Test Me

17、thod6.1 Breaking Strength and ElongationConduct tensionand elongation tests in accordance with Test Methods E8 andwith a rate of loading not to exceed 10 in./min 250 mm/min.The breaking strength shall equal or exceed the value specifiedin Table 1.6.2 ResistanceMeasure resistance in accordance with T

18、estMethod B193.6.3 DiameterMake diameter measurements with a mi-crometer or equivalent caliper equipped with a vernier gradu-ated in 0.0001 in. or 0.003 mm. Gage each coil in three places,one near each end and one near the center. From each spool,unreel approximately 12 ft 4 m and gage the wire in s

19、ixplaces between the second and twelfth foot from the end. Theaverage of the measurements obtained shall be considered thewire size specified in 5.3.7. Inspection7.1 GeneralAll tests and inspections shall be made at theplace of manufacture unless otherwise agreed upon betweenthe manufacturer and the

20、 purchaser at the time of purchase. Themanufacturer shall afford the inspector representing the pur-chaser all reasonable facilities to satisfy him that the materialis being furnished in accordance with this specification (Ex-planatory Note 3).7.1.1 Unless otherwise agreed upon between the manufac-t

21、urer and the purchaser, conformance of the wire to the variousrequirements listed in Section 5 shall be determined on samplestaken from each lot of wire presented for acceptance.TABLE 1 Tensile Properties and ResistanceNominal Diameter Breaking Strength, minElongation,min, % in10 in.or 250mmResistan

22、ce, max, at 20Cin. mm lbf N /1000 ft /km0.0720 1.829 239 1065 9 2.40 7.880.0641 1.628 190 844 9 3.03 9.940.0571 1.450 151 670 9 3.82 12.50.0508 1.290 119 530 9 4.82 15.80.0453 1.151 94.8 422 9 6.08 19.90.0403 1.024 75.0 334 9 7.66 25.10.0359 0.912 59.5 265 9 9.68 31.70.0320 0.813 47.3 210 9 12.1 39.

23、90.0285 0.724 37.5 167 9 15.3 50.20.0253 0.643 29.6 132 9 19.5 63.70.0226 0.574 23.6 105 9 24.3 80.00.0201 0.511 18.7 83.1 9 30.8 1010.0179 0.455 14.8 65.8 9 38.9 1280.0159 0.404 11.7 52.0 9 49.5 1610.0142 0.361 9.31 41.4 9 61.4 2020.0126 0.320 7.33 32.6 9 78.1 2570.0113 0.287 5.90 26.2 9 97.3 3200.

24、0100 0.254 4.62 20.6 8 124 4080.0089 0.226 3.65 16.2 8 158 5170.0080 0.203 2.94 13.1 8 195 6430.0071 0.180 2.31 10.3 8 249 8200.0063 0.160 1.81 8.1 8 317 10400.0056 0.142 1.43 6.3 8 403 13300.0050 0.127 1.13 5.0 7 508 16700.0045 0.114 0.91 4.0 7 630 20800.0040 0.102 0.72 3.2 7 802 26100.00350.00310.

25、0890.0790.540.422.41.97710601360345044100.0028 0.071 0.34 1.5 6 1670 54900.0025 0.064 0.27 1.2 6 2120 69500.0022 0.056 0.21 0.9 6 2770 90800.0020 0.051 0.17 0.8 6 3380 11 1000.00176A0.045 0.22 1.0 . 4430 14 5000.00157A0.040 0.17 0.8 . 5650 18 5000.00140A0.036 0.13 0.6 . 7220 23 7000.00124A0.031 0.10

26、 0.5 . 9390 30 800.0.00111A0.028 0.08 0.4 . 12 000 39 2000.00099A0.025 0.06 0.3 . 15 400 50 500AThese single ends will be hard temper.B624 07 (2017)27.1.2 The manufacturer, when requested before inspection,shall certify that all wire in the lot was made under suchconditions that the product as a who

27、le conforms to therequirements of this specification as determined by regularlymade and recorded tests.7.2 Description of Inspection Terms:7.2.1 LotAn inspection lot shall consist of an identifiablequantity of wire subjected to inspection at one time. Each lotshall consist of units of wire of the sa

28、me size and temper,manufactured under essentially the same conditions at essen-tially the same time. The amount in any case shall not exceed100 production units.7.2.2 SampleA sample is a quantity of production units(coils, reels, and so forth) selected at random from the lot forthe purpose of determ

29、ining conformance of the lot to therequirements of this specification.7.2.3 SpecimenA specimen is a length of wire removedfor test purposes from any individual production unit of thesample.7.3 Sample SizeThe number of production units in asample shall be as follows:7.3.1 For breaking strength, elong

30、ation, electricalresistance, and diameter measurements, the sample shall con-sist of a quantity of production units shown in Table 2 underheading “First Sample.” From each unit, one test specimen ofsufficient length shall be removed for the performance of therequired tests.7.3.2 For surface finish a

31、nd packaging inspection, whenspecified by the purchaser at the time of placing the order, thesample shall consist of a quantity of production units as shownin Table 3.8. Conformance Criteria8.1 Any lot of wire, the samples of which comply withconformance criteria of this section, shall be considered

32、 ascomplying with the requirements of Section 5. Individualproduction units that fail to meet one or more of the require-ments shall be rejected. Failure of a sample group from a lot tomeet one or more of the following criteria shall constitutecause for rejection of the lot. The conformance criteria

33、 for eachof the prescribed properties given in Section 5 are as follows:8.1.1 For breaking strength, elongation, resistance, anddiameter measurements, the sample shall consist of a quantityof production units shown in Table 2 under heading “FirstSample.” If there are no defects, the lot shall be con

34、sidered asconforming to these requirements. If there are defects, but thenumber of these do not exceed the allowable defect number c2(Table 2) for the respective number of units in the sample, asecond sample equal to n2shall be taken and the total defectsof the n1+ n2units shall not exceed the allow

35、able defectnumber c2. Failure to meet this requirement shall constitutefailure to meet the conformance criteria (Explanatory Note 4).8.1.1.1 Breaking Strength and ElongationThe breakingstrength and elongation of each of the specimens shall conformto the requirements of 5.1 and Table 1.8.1.1.2 Electr

36、ical ResistanceThe electrical resistanceshall conform to the requirements of 5.2 and Table 1.8.1.1.3 DiameterThe diameter of each of the specimensshall conform to the requirements of 5.3.8.1.2 For surface finish and packaging, when specified bythe purchaser at the time of placing the order, the samp

37、le shallconsist of a quantity of production units as shown in Table 3.The number of units in the sample showing nonconformance tothe requirements shall not exceed the allowable defect numberc in Table 3. Failure to meet the requirements shall constitutefailure to meet the conformance criteria.9. Pac

38、kaging and Package Marking9.1 Package sizes and marking shall be agreed to betweenthe manufacturer and the purchaser in the placing of individualorders.9.2 The wire shall be packaged so that it is protected againstdamage or degradation in ordinary handling and shipping.TABLE 2 Sampling for Mechanica

39、l and Electrical TestsNumber of UnitsFirst Sample Second SampleNumber of Units inSample, n1Allowable Number ofDefects in Sample toAccept Lot, c1Number of Units inSample, n2n1+ n2Allowable Number ofDefects in Both Samplesto Accept Lot, c21 to 3 all 0 . . 04 to 8 4 0 . . 09to15 4 0 5 9 116 to 25 5 0 9

40、 14 126 to 40 8 0 12 20 141 to 65 12 0 18 30 166 to 100 19 0 23 42 1TABLE 3 Sample for Surface Finish and PackagingNumber of Units in LotNumber of Units inSample, nAllowable Number ofDefects in Sample toAccept Lot, c1to3 All 04to8 4 09to15 9 016 to 25 14 026 to 40 20 041 to 65 30 066 to 100 42 0B624

41、 07 (2017)3EXPLANATORY NOTESNOTE 1The minimum breaking strength for any single strand con-ductor shall be calculated as follows:Breaking strength,min, lb 5 47 120 3 mindiameter, in.!2orBreaking strength,min, N 5 324.9 3 mindiameter, mm!2NOTE 2The maximum electrical resistance for any single strandco

42、nductor shall be calculated as follows:Resistance,max/1000 ft! 50.01220mindiameter, in.!2orResistance,max, /km! 525.83mindiameter, mm!2NOTE 3Cumulative results secured on the product of a singlemanufacturer, indicating continued conformance to the criteria, arenecessary to ensure an overall product

43、meeting the requirements of thisspecification. The sample sizes and conformance criteria given for thevarious characteristics are applicable only to lots produced under theseconditions.NOTE 4A defect should be taken as the failure of the individualrequirements (breaking strength, elongation, resista

44、nce, and diameter)specified in 8.1.1. For example, a defect of two individual requirementswould be considered one defect of each requirement and not two defectsof the sample.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mention

45、edin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and

46、 must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of

47、 theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box

48、C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 07 (2017)4

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