1、Designation: B324 01 (Reapproved 2016)Standard Specification forAluminum Rectangular and Square Wire for ElectricalPurposes1This standard is issued under the fixed designation B324; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, t
2、he 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.1. Scope1.1 This specification covers aluminum 1350-O, annealed,1350-H12 or -H22 (14 hard), 1350-H14 or -H24 (12 hard),
3、1350-H16 or -H26 (34 hard), and 1350-H19 (extra hard) wire,rectangular or square in shape with rounded corners for use aselectrical conductors in insulated magnet wire.1.2 The values stated in inch-pound or SI units are to beregarded separately as standard. Each system shall be usedindependently of
4、the other. Combining the values from the twosystems may result in non-conformance with the specification.For conductor sizes designated by AWG or kcmil sizes, therequirements in SI units are numerically converted from thecorresponding requirements in inch-pound units. For conductorsizes designated b
5、yAWG or kcmil, the requirements in SI unitshave been numerically converted from corresponding valuesstated or derived in inch-pound units. for conductor sizesdesignated by SI units only, the requirements are stated orderived in SI units.1.2.1 For density, resistivity and temperature, the valuesstate
6、d in SI units are to be regarded as standard.NOTE 1The aluminum and temper designations conform to ANSIH35.1. Aluminum 1350 corresponds to Unified Numbering SystemA91350 in accordance with Practice E527.2. Referenced Documents2.1 The following documents of the issue in effect on dateof material purc
7、hase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsB233 Specification for Aluminum 1350 Drawing Stock forElectrical PurposesB279 Test Method for Stiffness of Bare Soft Square andRectangular Copper
8、 andAluminum Wire for Magnet WireFabricationB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB830 Specification for Uniform Test Methods and Fre-quencyE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE527 Pra
9、ctice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.3 ANSI Standard:H35.1/H35.1(M) Standard for Alloy and Temper Designa-tion Systems for Aluminum32.4 American National Standards:NBS Handbook 100 Copper Wire Tables4NBS Handbook 109 Aluminum Wire Tables43. Description of Terms
10、 Specific to This Standard3.1 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 same size and temper,manufactured under essentially the same conditions at essen-tially the same time. The amount in
11、any case shall not exceed30 000 lb (14 000 kg).3.2 samplea quantity of production units (coils, reels,spools) selected at random from the lot for the purpose ofdetermining conformance of the lot to the requirements of thisspecification.3.3 sample sizethe number of production units selected.3.4 speci
12、mena length of wire removed for test purposesfrom any individual production unit of the sample.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors an
13、d is the direct responsibility of Subcommittee B01.07 onConductors of Light Metals.Current edition approved Oct. 1, 2016. Published October 2016. Originallyapproved in 1984. Last previous edition approved in 2012 as B324 01 (2012).DOI: 10.1520/B0324-01R16.2For referenced ASTM standards, visit the AS
14、TM 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.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 1003
15、6, http:/www.ansi.org.4Available 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 States14.1.1 Quantity and
16、temper of each size and shape (seeSection 5),4.1.2 Wire size; thickness and width in inches or in milli-metres (see Section 7),4.1.3 Mandrel diameter for the edgewise bend test,4.1.4 Place of inspection if other than at place of manufac-ture (see 12.2),4.1.5 Whether inspection or witness of inspecti
17、on and testsby purchasers representative is required prior to shipment (see12.3),4.1.6 Packaging and marking (see Section 13), and4.1.7 Special package marking, if required (see 13.4).5. Materials and Manufacture5.1 Material:5.1.1 The aluminum wire shall be made from rod inaccordance with the requir
18、ements of Specification B233.5.2 Manufacture:5.2.1 Unless otherwise specified, the manufacturer shallhave the option of producing the intermediate tempers by eitherstrain-hardening (only for H12, H14, H16 and H19) or bystrain-hardening and annealing (1350-O) or partial annealingH22, H24 and H26) (Ex
19、planatory Note 1 andANSI H35.1 H35.1(M).5.2.1.1 When the manufacturer is given the option in 5.2.1,the intermediate tempers shall be specified as: H12 or H22;H14 or H24; H16 or H26.5.2.1.2 When the manufacturer is not given the option in5.2.1, the specific temper should be specified, for example,H19
20、, H22, etc.6. General Requirements6.1 Tensile PropertiesThe wire shall conform to the re-quirements for tensile properties prescribed in Table 1.6.2 ResistivityThe electrical resistivity of the wire shallnot exceed the following values (Explanatory Note 2):6.2.1 All tempers except 1 350-O,0.028264 m
21、m2/m(17.002 cmil/ft) at 20C, (61.0 Volume Conductivity %IACS).6.2.2 For 1350-O0.027898 mm2/m (16.782 cmil/ft)at 20C, (61.8 Volume Conductivity % IACS).6.3 JointsThe finished wire shall not contain joints exceptsuch as have passed through drawing dies or an equivalentrolling operation. Necessary join
22、ts in the wire and rods prior tofinal drawing or rolling shall be made in accordance with goodcommercial practice.6.4 Bending Properties1350-O wire shall be capable ofbeing bent edgewise through 180 around a mandrel withoutcracking under normal conditions of edgewise bending duringmanufacturing oper
23、ations. The mandrel diameter shall be asagreed upon between the manufacturer and the user, and shallbe not less than one half the nominal width of the materialbeing bent. In cases where the mandrel diameter used is lessthan 5/32 in. (3.97 mm) or the thickness of the wire is less than0.020 in. (0.51
24、mm) or the ratio of width to thickness of thewire is greater than 12 to 1, the edgewise bending properties ofthe wire shall be as agreed upon between the user and themanufacturer (see Explanatory Note 3 and Explanatory Note4).6.5 Low Stress Elongation (LSE)The annealed wire (0temper) shall have a mi
25、nimum LSE valve of 1 % determined inaccordance with Test Method B279. LSE test results areaffected by small amounts of cold working. The specified 1 %minimum LSE value applies only to bare wires for furtherprocessing.7. Dimensions and Permissible Variations7.1 The dimensions shall be expressed in de
26、cimal fractionsof an inch or in millimetres (Explanatory Notes 5-8).7.1.1 The thickness shall not vary from that specified bymore than the amounts shown in Table 2.7.1.2 The width shall not vary from that specified by morethan the amount shown in Table 3.7.2 The wire shall have rounded corners or ro
27、unded edgesas specified in Table 4 and as shown in Fig. 1. Where roundedcorners are required, the corners of the wire shall be roundedwithin the limits of radii 25 % under and 25 % over (asdetermined by a radius gage) those values specified in Table 4.8. Workmanship, Finish, and Appearance8.1 The wi
28、re shall be free of all imperfections not consistentwith good commercial practice.9. General Methods and Conditions9.1 Nominal Cross-Sectional AreasNominal cross-sectional areas in square mils or square millimetres shall becalculated by subtracting the area reductions due to therounded corners or ro
29、unded edges (see Table 5 and Table 6).Values so derived shall be rounded off in accordance with 9.4to the same number of significant figures as used in expressingthe nominal dimensions, but in no case to less than threesignificant figures.TABLE 1 Tensile RequirementsNOTE 1For purposes of determining
30、 conformance with thesespecifications, each calculated value of tensile strength shall be roundedoff to the nearest 0.1 ksi, in accordance with the rounding method ofPractice E29.TemperTensile StrengthMax Minksi MPa ksi MPa0 14.0 97 8.5 59H12, H22 17.0 117 12.0 83H14, H24 20.0 138 15.0 103H16, H26 2
31、2.0 152 17.0 117H19 29.0 200 22.0 152TABLE 2 Permissible Variations in ThicknessSpecified Thickness, in. (mm)Permissible Variations inThickness, in. (mm), plus andminus0.280 to 0.098(7.10 to 2.50), incl1%Under 0.098 to 0.025(2.50 to 0.63), incl0.001 (0.025)B324 01 (2016)29.2 Nominal Mass and Lengths
32、Nominal linear densityand lengths shall be calculated from the nominal wire dimen-sions in accordance with the following equations and shall berounded off in the final values only, in accordance with 9.4,tothe same number of significant figures as used in expressing thenominal dimensions, but in no
33、case less than three significantfigures.Mass per Unit Length lb/ft 5 1.17 3A 31026kg/km 5 2.705 3A1Length ft/lb 5 0.8547 3106!/Akm/kg 5 0.36969!/A1where:A = nominal cross-sectional area obtained in accordancewith 9.1, mil2, andA1= nominal cross-sectional area obtained in accordancewith 9.1,mm2.9.3 D
34、ensityFor the purpose of calculating linear density,(Note 2), cross sections, etc., the density of aluminum 1350shall be taken as 0.0975 lb/in.3(2705 kg/m3) at 20C.NOTE 2The term mass per unit length is used in the standard as beingtechnically correct, and it replaces the terms “weight” or “linear d
35、ensity.”9.4 Rules for Rounding-OffAll calculations for the stan-dard nominal dimensions and properties shall be rounded in thefinal value only, in accordance with the rounding method ofPractice E29.9.5 For the purpose of this specification, all wire dimensionsand properties shall be considered as oc
36、curring at the interna-tionally standardized reference temperature of 20C. Whenmeasurements are made at temperatures other than this, cor-rections shall be applied to bring the results to the referencetemperature.10. Sampling Plan and Conformance Criteria10.1 Sampling PlanDetermine the conformance o
37、f thematerial to the requirements of Sections 6, 7, and 8 bystatistical sampling and inspection of each lot of wire presentedfor inspection in accordance with Specification B830.10.2 Conformance Criteria:10.2.1 Failure of a specimen to conform to the applicablerequirements of Section 6, 7, and 8 sha
38、ll constitute failure ofthe production unit from which the specimen was taken.10.2.2 Any lot of wire that has been sampled in accordancewith 10.1 and from which the number of specimens failing tocomply with the requirements of Sections 6, 7, and 8 does notequal or exceed the appropriate reject numbe
39、r of the samplingtable used shall be considered as complying with the require-ments of Sections 6, 7, and 8.10.2.3 Rejected lots may be screened to remove noncon-forming production units by testing one specimen from eachproduction unit in the lot for the failing characteristic.11. Test Methods11.1 T
40、ensile StrengthThe tensile strength, when tested inaccordance with Test Methods B557, shall be obtained bydividing the maximum load carried by the specimen during thetension test by the cross-sectional area of the specimenobtained in 9.1 (Explanatory Note 9).11.1.1 If any part of the fracture takes
41、place in the jaws ofthe tensile machine, or if an examination indicates that therewas external damage, the value obtained may not be represen-tative of the material. In such cases, the test may be discardedand a new test made.11.2 ResistivityThe electrical resistivity of the wire shallbe determined
42、by resistance measurements in accordance withTest Method B193 (Explanatory Note 2 and Table 7).11.2.1 Nominal resistance and other values derived from theresistivity units shall be calculated from the nominal wiredimensions in accordance with the following equations and allvalues so derived shall be
43、 rounded off in the final value only,in accordance with 9.4, to the same number of significantfigures as used in expressing the nominal dimensions, but in nocase to less than three significant figures.11.2.1.1 All tempers except 1350-O:d-c resistance at 20C,/ft = 13.353 A/km = 28.264 A1d-c resistanc
44、e at 20C,/lb=(11.413106)/A2/kg = 10.449 A12Length at 20C,ft/ = 0.07489 Akm/ = 0.03538 A1Mass at 20C,lb/ = 0.087619 A2106kc/ = 0.095703 A1211.2.1.2 1350-O:d-c resistance at 20C,/ft = 13.181 A/km = 27.898 A1d-c resistance at 20C,/lb=(11.266106)/A2/kg = 10.313 A12Length at 20C,ft/ = 0.075867 Akm/ = 0.0
45、3584 A1Mass at 20C,lb/ = 0.088763 A2106kg/ = 0.096965 A12where:A = nominal cross-sectional area of the wire obtained inaccordance with 9.1, mil2.A1= nominal cross-sectional area of the wire obtained inaccordance with 9.1,mm2.11.3 Dimensional MeasurementsSamples of coils, reels orspools shall be gage
46、d at each end for both width and thickness.If the inner end is not accessible, the gaging representing theTABLE 3 Permissible Variations in WidthSpecified Width, in. (mm)Permissible Variations in Width in.(mm), plus and minus0.520 (12.5) and over 1 %AUnder 0.520 to 0.315(12.5 to 8.00), incl0.003 (0.
47、076)Under 0.315 to 0.098(8.00 to 2.50), incl1%Under 0.098 to 0.063(2.50 to 1.60), incl0.001 (0.025)ABut not to exceed 0.016 in. (0.406 mm).B324 01 (2016)3inner end shall be made on the outside end of the coil producedimmediately prior to the coil under test, provided no adjust-ments or changes have
48、been made in the production equipment.12. Inspection12.1 Unless otherwise specified in the contract or purchaseorder, the manufacturer shall be responsible for the perfor-mance of all inspection and test requirements specified.12.2 All inspections and tests shall be made at the place ofmanufacture u
49、nless otherwise especially agreed to by themanufacturer and the purchaser at the time of the purchase.12.3 The manufacturer shall afford the inspector represent-ing the purchaser all reasonable manufacturers facilities tosatisfy him that the material is being furnished in accordancewith this specification.13. Packaging and Package Marking13.1 Package sizes and types shall be agreed upon betweenthe manufacturer and the purchaser in the placing of individualorders (Expla
