1、Designation: B 398/B 398M 02 (Reapproved 2007)Standard Specification forAluminum-Alloy 6201-T81 Wire for Electrical Purposes1This standard is issued under the fixed designation B 398/B 398M; the number immediately following the designation indicates the yearof original adoption or, in the case of re
2、vision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) 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 a
3、rtificially aged)round wire for electrical purposes.NOTE 1The alloy and temper designations conform to ANSI H35.1and H35.1M. Aluminum-alloy 6201 corresponds to unified numberingsystem alloy A96201 in accordance with Practice E 527.1.2 The values stated in inch-pound or SI units are to beregarded sep
4、arately 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 specification.1.2.1 For density, resistivity and temperature, the valuesstated in SI uni
5、ts 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 Standards:2B 193 Test Method for Resistivity of Electrical ConductorMaterialsB 557 Test M
6、ethods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB 557M Test Methods for Tension Testing Wrought andCast Aluminum- and Magnesium-Alloy Products MetricB 830 Specification for Uniform Test Methods and Fre-quencyE 527 Practice for Numbering Metals and Alloys in theUnifie
7、d Numbering System (UNS)2.3 ANSI Standard:3ANSI H35.1 American National Standard for Alloy andTemper Designation Systems for AluminumANSI H35.1M American National StandardAlloy and Tem-per Designation Systems for Aluminum Metric2.4 NIST Standard:4Handbook 100 Copper Wire Tables3. Terminology3.1 Defi
8、nitions 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 produc-tion conditions, and is presented for acceptance at the sametime (Explanatory Note
9、s 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, and which isconsidered to have properties representative of the lot.3.1.4 specimenA le
10、ngth 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 inches or in millimetres (see11.1),4.1.3 Special tension test, if required (see 7.2 and 7.3)
11、,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, if required (see 16.4).5. Material and Manufacture5.1 The aluminum alloy used shall be
12、of such quality thatwire produced from it can comply with the requirements as tochemical composition, tensile and elongation properties, bend-ing properties, and electrical resistivity prescribed in thisspecification.1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Co
13、nductors and is the direct responsibility of Subcommittee B01.07 onConductors of Light Metals.Current edition approved Oct. 1, 2007. Published October 2007. Originallyapproved in 1963. Last previous edition approved in 2002 as B 398 02.2For referenced ASTM standards, visit the ASTM website, www.astm
14、.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 10036, http:/www.ansi.or
15、g.4Available from National Technical Information Service (NTIS), 5285 PortRoyal Rd., Springfield, VA 22161, http:/www.ntis.gov.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Chemical Composition6.1 The wire shall be made from alu
16、minum 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, drawn, and artificially aged wire whensampled in accordance with Section 14 of this specification andtested in accordance wit
17、h Test Methods B 557 and B 557Mshall conform to the tensile requirements prescribed in Table 2(Explanatory Note 3).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 an
18、dprior to final drawing. Such tests shall show not less than 90 %of the minimum strength specified in Table 2 for individualtest.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
19、or during thefinal drawing as permitted in 12.2. Such tests shall show thetensile strength to be not less than 42 ksi (290 MPa) forcold-pressure welds and for electric-butt, cold-upset welds andnot less than 15 ksi (100 MPa) for electric-butt welds.Electric-butt welds in addition shall show a minimu
20、m elonga-tion of 6 % in 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
21、 Any coil or reel may be tested 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
22、tested inaccordance with Test Method B 193, shall not exceed 0.032841Vmm2/m at 20C (68F) (Explanatory Note 2 and Table 3).10. Density10.1 For the purpose of calculating mass, mass per unitlength, mass cross sections, etc., the density of aluminum-alloy6201 shall be taken as 2690 kg/m3(0.097 lb/in.3)
23、 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 spools (or allif the lot is less than five) fro
24、m 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:Specified Diameter, in. (mm)Permissible Variations of MeanDiameter from Specified Diameter,plus a
25、nd minus0.1878 to 0.1000(4.75 to 2.55), incl1%Under 0.1000 to 0.0612(2.55 to 1.50), incl0.0010 in. (0.03 mm)12. 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 wi
26、reafter heat 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
27、 between the 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
28、each side of 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.TABLE 1
29、Chemical RequirementsAElement Composition, %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 ele
30、ments specified in this table.If, however, 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 Tensi
31、le RequirementsDiameter, in. (mm)Tensile 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 Equivalent Resistivit
32、y Values at 20C (68F)AMaterialVolume Conductivity% IACSResistivity ConstantsAVolumeVcmil/ft (Vmm2/m)Copper 100 10.371 (0.017241)Aluminum 61.0 17.002 (0.028265)53.5 19.385 (0.032227)52.5 19.755 (0.032841)AThe equivalent resistivity values for 100 % IACS (soft copper) were eachcomputed from the fundam
33、ental IEC value (158 Vmm2m) using conversion factorseach accurate to at least seven significant figures. Corresponding values for otherconductivities (aluminum) were derived from these by multiplying by the reciprocalof the conductivity ratios accurate to at least seven significant figures.B 398/B 3
34、98M 02 (2007)213. Workmanship, Finish 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
35、 withSpecification B 830 (see Explanatory 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 MethodsB 557, by dividing the maximum load resisted by the tensil
36、especimen, with the tensile stress to 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 l
37、essthan 0.0500 in. in diameter. Should any 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 electric
38、al resistivity using TestMethod B 193.14.2.2 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 in con-formance, the lot average test results
39、 shall meet the “averagefor a lot” requirements of Tables 1 and 2, and the test results ofeach specimen shall meet the “individual tests” requirements ofTables 2 and 3 unless otherwise specified.14.2.3.1 If the lot average results are in conformance, andall of the individual specimen results are in
40、conformance, thelot shall be considered in conformance.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 aver
41、age results are in conformance, butone or more 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
42、one or more of thetested properties are not 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 or
43、iginallysampled. Test shall be run on the six 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 in conform-ance, and all ten of the individual specimen results are inconformance,
44、the lot shall be considered in conformance.(3) 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 in conform-ance, the lot shall be considered not in conformance.(4) In the event a lo
45、t is rejected in accordance with 14.2.3.2or (3), 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 3.14.3 Be
46、nding (brittleness)Specimens from any produc-tion unit may be tested, with the frequency of sampling andtesting to be agreed upon between the manufacturer and thepurchaser.15. Inspection15.1 Unless otherwise specified in the purchase contract, themanufacturer shall be responsible for the performance
47、 of allinspection and testing requirements specified.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 cons
48、istent 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 shall bedetermined by sampling in accordance with Section 14
49、 of eachlot of wire presented for acceptance.15.5 The manufacturer shall, if requested prior to inspectionand testing, certify that the product as a whole was made undersuch uniform conditions that compliance with the requirementsof this specification can be determined by sampling, inspec-tions, and tests performed in accordance with Section 14(Explanatory Note 2).16. Packaging, and Package Marking16.1 Package sizes shall be agreed upon between the manu-facturer and the purchaser in the placing of individual orders.16.2 Unless otherwise specified, the w
