1、Designation: B230/B230M 07 (Reapproved 2012)Standard Specification forAluminum 1350H19 Wire for Electrical Purposes1This standard is issued under the fixed designation B230/B230M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the
2、 year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers al
3、uminum 1350H19 (extrahard) round wire for electrical purposes.1.2 The values stated in inch-pound or SI units are to beregarded separately as standard. The values in each system arenot exact equivalents; therefore, each system shall be usedindependently of the other. Combining values from the twosys
4、tems may result in nonconformance with the specification.1.2.1 For density, resistivity, and temperature, the valuesstated in SI units are to be regarded as standard.NOTE 1Prior to 1975 aluminum 1350 was designated EC aluminum.NOTE 2The aluminum and temper designations conform to ANSIH35.1/H35.1M. A
5、luminum 1350 corresponds to UNS A91350 in accor-dance with Practice E527.NOTE 3For definitions of terms found in this specification relating touninsulated electrical conductors see Terminology B354.2. Referenced Documents2.1 The following documents of the issue in effect on thedate of material purch
6、ase 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 PurposesB354 Terminology Relating to Uninsulated Metallic Electri-cal ConductorsB
7、557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products (Metric)B830 Specification for Uniform Test Methods and Fre-quencyE527 Practice for Numbering Metals and Alloys in
8、theUnified Numbering System (UNS)2.3 ANSI Standard:ANSI H35.1 American National Standard for Alloy andTemper Designations Systems for Aluminum3ANSI H35.1M American National Standard for Alloy andTemper Systems for Aluminum Metric32.4 NIST Document:NBS Handbook 100Copper Wire Tables43. Terminology3.1
9、 Definitions of Terms Specific to This Standard:3.1.1 lota group of production units, up to 30 000 lb15 000 kg of mass, of one type and size of wire, which wasproduced during the same time period, under similar produc-tion conditions, and is presented for acceptance at the sametime (Explanatory Note
10、 1 and Note 2).3.1.2 production unita coil, reel, spool, or other packageof wire that represents a single usable length.3.1.3 samplethe production unit or units from which a testspecimen or specimens has been removed, and which isconsidered to have properties representative of the lot.3.1.4 specimen
11、a length of wire removed for test purposes.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity of each size,4.1.2 Wire size (see 11.1 and Table 1 or Table 2),4.1.3 Special tension test, if required (see 7.2 and 7.3),4.1.4 Freq
12、uency of bending test (see 8.1 and 14.5),4.1.5 Special jointing procedures, if permitted (see 12.2),4.1.6 Place of inspection (see 15.2),4.1.7 Package size and type (see 16.1), and4.1.8 Special package marking, if required (see 16.4).1This specification is under the jurisdiction of ASTM Committee B0
13、1 onElectrical Conductorsand is the direct responsibility of Subcommittee B01.07 onConductors of Light Metals.Current edition approved Oct. 15, 2012. Published November 2012. Originallyapproved in 1948. Last previous edition approved in 2007 as B230/B230M 07.DOI: 10.1520/B0230_B0230M-07R12.2For refe
14、renced 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.3Available from American National Standards Institute (ANSI), 25 W. 43
15、rd St.,4th Floor, New York, NY 10036, 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
16、. United States15. Materials and Manufacture5.1 The aluminum wire shall be made from drawing stockmeeting the requirements of Specification B233.6. Workmanship, Finish, and Appearance6.1 The wire shall be free of imperfections not consistentwith good commercial practice.7. Tensile Properties7.1 Tens
17、ile Strength and ElongationThe wire shall con-form to the tensile strength and elongation requirements setforth in Table 1 or Table 2 (Explanatory Note 3).7.2 When requested by the purchaser, tension tests shall bemade of specimens of wire containing joints made in thedrawing stock or in the wire pr
18、ior to final drawing. Such testsshall indicate tensile strengths not less than 90 % of the valuesfor individual tests shown in Table 1 or Table 2.7.3 When requested by the purchaser, tension tests ofspecimens containing joints in the finished wire, or in the finaldrawing, if permitted, shall be made
19、. Such tests shall indicatetensile strengths to be not less than 11.0 ksi 145 MPa forelectric-butt welded joints, and not less than 21.0 ksi 75 MPafor cold-pressure welded joints and electric-butt, cold-upsetwelded joints.8. Bending Properties8.1 The wire shall be free of brittleness as evidenced by
20、 itsability to be coiled or looped around its own diameter with orwithout a mandrel. No fracture shall occur. Slight surfacechecks shall not constitute cause for rejection.9. Resistivity9.1 The electrical resistivity shall not exceed the valuesshown in Table 3 (Explanatory Note 4).10. Density10.1 Fo
21、r the purpose of calculating linear density, crosssection, and so forth, the density of aluminum 1350 shall betaken as 2705 kg/m30.0975 lb/in.3 at 20C 68F.11. Diameter11.1 The diameter of the wire shall be specified in inches tothe nearest 0.0001 in. or the diameter of the wire shall bespecified in
22、millimetres to the nearest 0.001 mm for wires lessthan 1.000 mm in diameter, and to the nearest 0.01 mm forwires 1.00 mm in diameter and larger. The actual wire diametershall not vary from the specified diameter by more than thevalues shown in Table 4.TABLE 1 Tensile Strength and Elongation Requirem
23、entsDiameter, in.Tensile Strength, min ksiElongation in 10 in., min(%)Average fora LotAIndividualTestsAverage fora LotIndividualTests0.0105 to 0.0500 25.0 23.0 . . . . . .0.0501 to 0.0600 29.0 27.0 1.4 1.20.0601 to 0.0700 28.5 27.0 1.5 1.30.0701 to 0.0800 28.0 26.5 1.6 1.40.0801 to 0.0900 27.5 26.0
24、1.6 1.50.0901 to 0.1000 27.0 25.5 1.6 1.50.1001 to 0.1100 26.0 24.5 1.6 1.50.1101 to 0.1200 25.5 24.0 1.7 1.60.1201 to 0.1400 25.0 23.5 1.8 1.70.1401 to 0.1500 24.5 23.5 1.9 1.80.1501 to 0.1800 24.0 23.0 2.0 1.90.1801 to 0.2100 24.0 23.0 2.1 2.00.2101 to 0.2600 23.5 22.5 2.3 2.2AFor wire diameters w
25、ithin 0.0501 to 0.2600 in., the minimum average tensilestrength for a lot may be estimated from the following logarithmic equation forprocess control purposes to meet the requirements of this specification: Tensilestrength, ksi = 17.40 3.84 ln (diameter of wire, in.). Requirements stated in thetable
26、 are to be used for all other purposes.TABLE 2 Tensile Strength and Elongation RequirementsDiameter, mmTensile Strength, min MPaElongation in 250 mm, min(%)Average fora LotAIndividualTestsAverage fora LotIndividualTests0.227 to 1.25 170.0 160.0 . . . . . .1.26 to 1.50 200.0 185.0 1.4 1.21.51 to 1.75
27、 195.0 185.0 1.5 1.31.76 to 2.00 195.0 185.0 1.6 1.42.01 to 2.25 190.0 180.0 1.6 1.52.26 to 2.50 185.0 175.0 1.6 1.52.51 to 2.75 180.0 170.0 1.6 1.52.76 to 3.00 175.0 165.0 1.7 1.63.01 to 3.50 170.0 160.0 1.8 1.73.51 to 3.75 170.0 160.0 1.9 1.83.76 to 4.50 165.0 160.0 2.0 1.94.51 to 5.25 165.0 160.0
28、 2.1 2.05.26 to 6.50 160.0 155.0 2.3 2.2AFor wire diameters within 1.26 to 6.50 mm the minimum average tensile strengthfor a lot may be estimated from the following logarithmic equation for processcontrol purposes to meet the requirements of this specification: Tensile Strength,MPa = 205.88 27.14 ln
29、 (diameter of wire, mm). Requirements stated in thetable are to be used for all other purposes.TABLE 3 Electrical Resistivity Requirements at 20C (68F) and Equivalent Copper ResistivityANOTE 1The values in boldface are standard; other values are for information only.VolumeConductivityElectrical Resi
30、stivity%IACSVolume MassVmm2/m Vin. Vcm Vcmil/ft Vlb/mile2Vg/m2Average for lot 61.2 0.028172 1.1091 2.8172 16.946 434.81 0.076149Individual tests 61.0 0.028265 1.1128 2.8265 17.002 436.23 0.076399Copper equivalent 100.0 0.017241 0.67879 1.7241 10.371 875.20 0.15328AThe equivalent resistivity values f
31、or 100 % IACS conductivity were each computed from the fundamental IEC value (158 Vmm2/m) using conversion factors eachaccurate to at least seven significant figures. Corresponding values for aluminum conductivities were derived from these by multiplying by the reciprocal of the conductivityratios a
32、nd, where applicable, also by the density ratios, both accurate to at least seven significant figures.B230/B230M 07 (2012)212. Joints12.1 No joints shall be made in the finished wire except asprovided in 12.2. Joints may be made in the drawing stock andin the wire prior to final drawing and shall be
33、 in accordancewith good commercial practice.12.2 If agreed upon between the manufacturer and thepurchaser, joints may be made during the final drawing or inthe finished wire by electric-butt welding, cold-pressurewelding, or electric-butt, cold-upset welding, subject to thefollowing limitations.12.2
34、.1 For wire sizes from 0.0100 to 0.0555 in. 0.225 to1.25 mm in diameter not more than three such joints shall bepresent in any coil, reel, or spool of the specified nominal mass.12.2.2 For wire sizes greater than 0.0500 in. 1.25 mmdiameter, not more than 10 % of the coils, reels, or spools shallcont
35、ain such joints, and no such joint shall be closer than 50 ft15 m to another joint or to either end of the wire. Not morethan two such joints shall be present in any coil, reel or spoolof the specified nominal mass.13. Sampling13.1 SamplingFour test specimens shall be obtained, onefrom each of four
36、production units (Explanatory Note 1)orinaccordance with the statistical sampling methods as prescribedby Specification B830.14. Test Methods14.1 DiameterMeasure the diameter of each specimenwith a micrometer caliper graduated in 0.0001-in. incrementsor measure the diameter of each specimen with a m
37、icrometercaliper graduated in minimum 0.005 mm increments for wiresless than 1.00 mm in diameter, or minimum 0.01-mm incre-ments for wires 1.00 mm in diameter and larger. Take twomeasurements at one point, with the second measurementacross the cross-sectional diameter 90 rotated from the firstmeasur
38、ement. Average the two measurements to obtain thespecimen diameter. Should the measured diameter of anyspecimen vary from the specified diameter by an amountgreater than the tolerance permitted by Table 4, the lot shall beconsidered to not meet diameter requirements.14.2 FinishMake a visual surface
39、finish inspection withthe unaided eye (corrective lenses excepted). The surface finishshall meet the requirements of 6.1. Should any specimen befound unacceptable, the lot shall be considered to not meetsurface finish requirements.14.3 Tensile strength and elongation may be determinedsimultaneously.
40、 Obtain the tensile strength, in accordance withTest Methods B557 or B557M, by dividing the maximum loadresisted by the tensile specimen by the original cross-sectionalarea of the specimen, with the tensile stress to be expressed inksi MPa. Elongation is the percent increase in length of thetensile
41、test specimen as measured between gage marks origi-nally spaced 10 in. 250 mm apart on the specimen. Elonga-tion measurements are not required for wires 0.0500 in.1.25 mm in diameter. Should any part of the fracture takeplace outside the elongation gage lines, or if examination of thetensile specime
42、n indicates a flaw, the values obtained may notbe representative and a test on another section of the specimenmay be run (Explanatory Note 6).14.4 Determine the electrical resistivity in accordance withTest Method B193.14.5 Test ResultsA numerical average for the tensilestrength, elongation, and res
43、istivity of the four specimens shallbe calculated and shall be considered the lot average.14.6 Conformance CriteriaTo be considered inconformance, the lot average test results shall meet the averagefor a lot requirements of Table 1 or Table 2 and Table 3, and thetest results of each specimen shall m
44、eet the individual testsrequirements of Table 1 or Table 2 and Table 3 unlessotherwise specified.14.6.1 If the lot average results are in conformance, and allof the individual specimen results are in conformance, the lotshall be considered in conformance.14.6.2 If the lot average result for one or m
45、ore of the testedproperties is not in conformance and one or more of theindividual specimen results is also not in conformance, the lotshall be considered not in conformance.14.6.3 If the lot average results are in conformance, but oneor more of the individual specimen results are not inconformance,
46、 the lot shall be considered in conformanceexcept that the production unit or units represented by thenon-conforming specimen or specimens shall be rejected.14.6.4 If the lot average results for one or more of the testedproperties is not in conformance, but all the individual speci-men results are i
47、n conformance, then additional test specimensand tests shall be required as follows:14.6.4.1 An additional six test specimens shall be obtained,one each from six production units other than the fouroriginally sampled. Tests shall be run on the six additionalspecimens, and a numerical average of the
48、ten tested specimensshall be calculated and considered the lot average.14.6.4.2 If the ten specimen lot average results are inconformance, and all ten of the individual specimen results arein conformance, the lot shall be considered in conformance.14.6.4.3 If the ten specimen lot average results for
49、 one ormore of the tested properties are not in conformance, or if oneor more of the ten individual specimen results are not inconformance, the lot shall be considered not in conformance.14.6.5 In the event a lot is rejected in accordance with14.6.2 or 14.6.4.3, production units making up that lot may beindividually tested. Acceptance of individual production unitsfrom a rejected lot shall be dependent on the individualspecimen test results meeting the average for a lot requirementsof Table 1 or Table 2 and Table 3.TAB
