1、Designation: B398/B398M 14Standard Specification forAluminum-Alloy 6201-T81 and 6201-T83 Wire for ElectricalPurposes1This standard is issued under the fixed designation B398/B398M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, th
2、e 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.1. Scope1.1 This specification covers aluminum-alloy 6201-T81(hard, solution heat-treated, cold worked, and artificially
3、 aged)and 6201-T83 (hard, higher conductivity, solution heat-treated,cold worked, and artificially aged) round wire for electricalpurposes.NOTE 1The alloy and temper designations conform to ANSI H35.1and H35.1M. Aluminum-alloy 6201 corresponds to unified numberingsystem alloy A96201 in accordance wi
4、th Practice E527.1.2 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 twosystems may result in nonconformance with the sp
5、ecification.1.2.1 For density, resistivity and temperature, the valuesstated in SI units are to be regarded as standard.2. Referenced Documents2.1 The following documents of this issue in effect on dateof material purchase form a part of this specification to theextent referenced herein.2.2 ASTM Sta
6、ndards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsB557 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 Te
7、st Methods and Fre-quencyE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.3 ANSI Standard:3ANSI H35.1 American National Standard for Alloy andTemper Designation Systems for AluminumANSI H35.1M American National Standard Alloy and Tem-per Designation Systems for Alu
8、minum Metric2.4 NIST Standard:4NBS Handbook 100 Copper Wire Tables3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 lotA group of production units, up to 30 000 lb 15metric tons of mass, of one type and size of wire, which wasproduced during the same time period, under similar p
9、roduc-tion conditions, and is presented for acceptance at the sametime (Explanatory Notes 1 and 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 atest specimen or specimens has been removed
10、, and which isconsidered to have properties representative of the lot.3.1.4 specimenA length of wire removed for test pur-poses.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: diameter in inch
11、es or in millimetres (see11.1),4.1.3 Special tension test, if required (see 7.2 and 7.3),4.1.4 Frequency of bending test (see 8.2),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,
12、 if required (see 16.4).1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.07 onConductors of Light Metals.Current edition approved April 1, 2014. Published April 2014. Originallyapproved in 1963. Last prev
13、ious edition approved in 2013 as B398 02 (2013).DOI: 10.1520/B0398_B0398M-14.2For 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 ont
14、he ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Available from National Technical Information Service (NTIS), 5285 PortRoyal Rd., Springfield, VA 22161, http:/www.ntis.gov.Copyright ASTM International, 10
15、0 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15. Material and Manufacture5.1 The aluminum alloy used shall be of such quality thatwire produced from it can comply with the requirements as tochemical composition, tensile and elongation properties, bend-ing properti
16、es, and electrical resistivity prescribed in thisspecification.6. Chemical Composition6.1 The wire shall be made from aluminum alloy 6201 asdesignated in ANSI H35.1 and H35.1M. The material shallconform to the chemical composition prescribed in Table 1.7. Tensile Properties7.1 The heat-treated, draw
17、n, and artificially aged wire whensampled in accordance with Section 14 of this specification andtested in accordance with Test Methods B557 and B557M for6201-T81 shall conform to the tensile requirements prescribedin Table 2 and for 6201-T83 to the tensile requirements ofTable 3 (Explanatory Note 3
18、).7.2 When requested by the purchaser, tension tests shall bemade on specimens of heat-treated, drawn, and artificially agedwire containing joints made in the wire after heat treatment andprior to final drawing. Such tests shall show not less than 90 %of the minimum strength specified in Table 2 (fo
19、r 6201-T81) orTable 3 (for 6201-T83) for individual test.7.3 When requested by the purchaser, tension tests shall bemade on specimens of heat-treated, drawn, and artificially agedwire containing joints made in the finished wire or during thefinal drawing as permitted in 12.2. Such tests shall show t
20、hetensile strength to be not less than 42 ksi (290 MPa) (for6201-T81) or 32 ksi (220 MPa) (for 6201-T83) for cold-pressure welds and for electric-butt, cold-upset welds and notless than 15 ksi (100 MPa) for electric-butt welds. Electric-buttwelds in addition shall show a minimum elongation of 6 % in
21、10 in. 250 mm.8. Bending Properties8.1 The wire shall be free of brittleness as evidenced by itsability to be coiled or looped around its own diameter eitherwith or without a mandrel. No fracture shall occur. Slightsurface checks shall not constitute cause for rejection.8.2 Any coil or reel may be t
22、ested in accordance with 8.1,but the frequency of production sampling and testing shall beby agreement between the manufacturer and the purchaser.9. Resistivity9.1 Electrical resistivity, determined on samples selected inaccordance with Section 14 of this specification and tested inaccordance with T
23、est Method B193, shall not exceed 0.032841mm2/m at 20C 68F (for 6201-T81) and shall not exceed0.032530 mm2/m at 20C 68F (for 6201-T83) (Explana-tory Note 2 and Table 4).10. Density10.1 For the purpose of calculating mass, mass per unitlength, mass cross sections, etc., the density of aluminum-alloy6
24、201 shall be taken as 2690 kg/m3(0.097 lb/in.3) at 20C.11. Diameter and Permissible Variations11.1 The diameter of the wire shall be expressed in decimalfractions of an inch using four places of decimals or inmillimetres using two places of decimals.11.2 Ten percent, but not less than five coils or
25、spools (or allif the lot is less than five) from any lot of wire shall be gagedat three places. If the material is in coil form, one gaging shallbe made near each end and one near the middle.11.3 The permissible variations in diameter are as follows:TABLE 1 Chemical RequirementsAElement Composition,
26、 %Copper, max 0.10Iron, max 0.50Silicon 0.500.9Manganese, max 0.03Magnesium 0.60.9Zinc, max 0.10Chromium, max 0.03Boron, max 0.06Other elements, each, max 0.03Other elements, total, max 0.10Aluminum remainderAAnalysis shall regularly be made only for the elements specified in this table. If,however,
27、 the presence of other elements is suspected or indicated in amountsgreater than the specified limits, further analysis shall be made to determine thatthese elements are not present in amounts in excess of the specified limits forother elements.TABLE 2 Tensile Requirements (6201-T81)Diameter,in. mmT
28、ensile Strength, min Elongation in 10in. 250 mm forIndividual Tests,min, %Averagefor a lotIndividualTestsOver Through ksi (MPa) ksi (MPa)0.1280 3.25 0.1878 4.75 46 (315) 44 (305) 3.00.0610 1.50 0.1280 3.25 48 (330) 46 (315) 3.0TABLE 3 Tensile Requirements (6201-T83)Diameter,in. mmTensile Strength, m
29、in Elongation in 10in. 250 mm forIndividual Tests,min, %Averagefor a lotIndividualTestsOver Through ksi (MPa) ksi (MPa)0.0610 1.50 0.1878 4.75 36 (250) 34 (235) 3.5TABLE 4 Equivalent Resistivity Values at 20C 68FAMaterialVolume Conductivity% IACSResistivity ConstantsAVolumecmil/ft mm2/mCopper 100 10
30、.371 0.017241Aluminum 61.0 17.002 0.02826557.7 19.567 0.03253053.5 19.385 0.03222752.5 19.755 0.032841AThe equivalent resistivity values for 100 % IACS (soft copper) were eachcomputed from the fundamental IEC value 158 mm2m using conversion factorseach accurate to at least seven significant figures.
31、 Corresponding values for otherconductivities (aluminum) were derived from these by multiplying by the reciprocalof the conductivity ratios accurate to at least seven significant figures.B398/B398M 142Specified Diameter, in. mmPermissible Variations of MeanDiameter from SpecifiedDiameter,plus and mi
32、nus0.1878 to 0.10004.75 to 2.55, incl1%Under 0.1000 to 0.06122.55 to 1.50, incl0.0010 in. 0.03 mm12. Joints12.1 Unless otherwise specified at the time of placing theorder, wire shall be supplied in one continuous length of reel,coil, or spool. Joints may be made in the drawing stock or wireafter hea
33、t treatment and prior to final drawing by electric-buttwelding, by cold-pressure welding, or by electric-butt, cold-upset welding in accordance with good commercial practice.Unless otherwise specified, no joints shall be made during finaldrawing or in the finished wire.12.2 If agreed upon between th
34、e manufacturer and thepurchaser, joints may be made during final drawing or in thefinished wire by cold-pressure welding, by electric-butt, cold-upset welding, or by electric-butt welding. Following welding,electric-butt welds shall be annealed for a distance of at least 6in. 150 mm on each side of
35、the weld. Not more than 10 % ofthe reels, coils, or spools shall contain such joints and no jointshall be closer than 50 ft 15 m to another or to either end ofthe wire, and not more than two such joints shall be present inany reel, coil, or spool of the nominal specified mass.13. Workmanship, Finish
36、, and Appearance13.1 The wire shall be free of all imperfections not consis-tent with good commercial practice.14. Sampling, Testing, and Conformance Criteria14.1 SamplingFour test specimens shall be obtained, onefrom each of four production units or in accordance withSpecification B830 (see Explana
37、tory Note 2).14.2 Tensile strength, elongation, and resistivity:14.2.1 Test Methods:14.2.1.1 Tensile strength and elongation may be determinedsimultaneously. Obtain the tensile strength, using Test MethodsB557, by dividing the maximum load resisted by the tensilespecimen, with the tensile stress to
38、be expressed in kips (1000lbf) per square inch (ksi). Elongation is the percent increase inlength of the tensile specimen as measured between gagemarks originally spaced 10 in. 254 mm apart on the speci-men. Elongation measurements are not required for wire lessthan 0.0500 in. in diameter. Should an
39、y part of the fracture takeplace outside the elongation gage lines, or if examination of thetensile specimen indicates a flaw, the values obtained may notbe representative and a test on another section of the specimenmay be run.14.2.1.2 Determine the electrical resistivity using TestMethod B193.14.2
40、.2 Test ResultsA numerical average for the tensilestrength, elongation, and resistivity of the four specimens shallbe calculated and shall be considered the lot average.14.2.3 Conformance CriteriaTo be considered inconformance, the lot average test results shall meet the“average for a lot” requireme
41、nts of Tables 1 and 2, and the testresults of each specimen shall meet the “individual tests”requirements of Tables 2 and 4 unless otherwise specified.14.2.3.1 If the lot average results are in conformance, andall of the individual specimen results are in conformance, thelot shall be considered in c
42、onformance.14.2.3.2 If the lot average result for one or more of thetested properties is not in conformance and one or more of theindividual specimen results is also not in conformance, the lotshall be considered not in conformance.14.2.3.3 If the lot average results are in conformance, butone or mo
43、re of the individual specimen results are not inconformance, the lot shall be considered in conformanceexcept that the production unit or units represented by thenonconforming specimen or specimens shall be rejected.14.2.3.4 If the lot average results for one or more of thetested properties are not
44、in conformance, but all the individualspecimen results are in conformance, then additional testspecimens and tests shall be required as follows:(1) An additional six test specimens shall be obtained, oneeach from six production units other than the four originallysampled. Test shall be run on the si
45、x additional specimens, anda numerical average of the ten tested specimens shall becalculated and considered the lot average.(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.(3)
46、 If the ten specimen lot average results for one or moreof the tested properties are not in conformance, or if one ormore of the ten individual specimen results are not inconformance, the lot shall be considered not in conformance.(4) In the event a lot is rejected in accordance with 14.2.3.2or (3),
47、 production units making up that lot may be individuallytested. Acceptance of individual production units from arejected lot shall be dependent on the individual specimen testresults meeting the “average for a lot” requirements of Tables2 and 4.14.3 Bending (brittleness)Specimens from any production
48、unit may be tested, with the frequency of sampling and testingto be agreed upon between the manufacturer and the purchaser.15. Inspection15.1 Unless otherwise specified in the purchase contract, themanufacturer shall be responsible for the performance of allinspection and testing requirements specif
49、ied.15.2 All tests and inspections shall be made at the place ofmanufacture unless otherwise agreed upon between the manu-facturer and the purchaser.15.3 The manufacturer shall afford the purchaser reasonableaccess to the manufacturers facilities consistent with thepurchasers need to ensure compliance with this specification.15.4 Unless otherwise agreed upon between the manufac-turer and the purchaser, conformance of the wire to therequirements specified in Sections 7, 8, 9, 11, and 13 shal
