1、Designation: B250/B250M 07 B250/B250M 12Standard Specification forGeneral Requirements for Wrought Copper Alloy Wire1This standard is issued under the fixed designation B250/B250M; 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification establi
3、shes requirements common to wrought copper and copper alloy wire and shall apply toSpecifications B16/B16M, B99/B99M, B134/B134M, B159/B159M, B197/B197M, B206/B206M, B272, B301/B301M, B453/B453Mand, B453/B453MB967/B967M, and B974/B974M to the extent referenced therein.1.2 The chemical composition, p
4、hysical and mechanical properties, and all other requirements not included in this specificationshall be prescribed in the product specification.1.3 The following safety hazard caveat pertains only to the test methods described in this specification.1.3.1 This standard does not purport to address al
5、l of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatorylimitations prior to use.1.3 UnitsValues stated in either SI units or inch-pound units
6、are to be regarded separately as standard. Within the text, SI unitsare shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be usedindependently of the other. Combining values from the two systems may result in non-conformance with the stand
7、ard.1.4 The following safety hazard caveat pertains only to the test methods described in this specification. This standard does notpurport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard toestablish appropriate safety and
8、 health practices and to determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B16/B16M Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw MachinesB99/B99M Specification for Copper-Silicon Alloy Wire for General Applicati
9、onsB134/B134M Specification for Brass WireB159/B159M Specification for Phosphor Bronze WireB193 Test Method for Resistivity of Electrical Conductor MaterialsB194 Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled BarB197/B197M Specification for Copper-Beryllium Alloy WireB206/B
10、206M Specification for Copper-Nickel-Zinc (Nickel Silver) Wire and Copper-Nickel Alloy WireB272 Specification for Copper Flat Products with Finished (Rolled or Drawn) Edges (Flat Wire and Strip)B301/B301M Specification for Free-Cutting Copper Rod, Bar, Wire, and ShapesB453/B453M Specification for Co
11、pper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, and ShapesB846 Terminology for Copper and Copper AlloysB900 Practice for Packaging of Copper and Copper Alloy Mill Products for U.S. Government AgenciesB967/B967M Specification for Copper-Zinc-Tin-Bismuth Alloy Rod, Bar and WireB974/B974M Specification f
12、or Free-Cutting Bismuth Brass Rod, Bar and WireE3 Guide for Preparation of Metallographic SpecimensE8E8/E8M Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Materials Metric (Withdrawn 2008)3E18 Test Methods for Rockwell Hardness of Metallic Mate
13、rialsE18M Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty ChemicalsE0181E29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE54 Test Methods for Chemical Analysis of Special Brasses and Bronzes
14、 (Withdrawn 2002)3E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)3*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United Stat
15、es1E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys (Withdrawn 2010)3E112 Test Methods for Determining Average Grain SizeE118 Test Methods for Chemical Analysis of Copper-Chromium Alloys (Withdrawn 2010)3E121 Test Methods for Chemical Analysis of Copper-Tellurium
16、 Alloys (Withdrawn 2010)3E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper AlloysE581 Test Methods for Chemical Analysis of Manganese-Copper Alloys3. Terminology3.1 For definitions of terms related to co
17、pper and copper alloys, refer to Terminology B846.4. Materials and Manufacture4.1 Materials:4.1.1 The materials of manufacture shall be a form (cast bar, billet, rod, etc.) of the copper or copper alloy covered by theproduct specification, of such purity and soundness as to be suitable for processin
18、g into the products required.4.1.2 In the event When specified in the contract or purchase order, that heat identification or traceability is required, thepurchaser shall specify the details desired.NOTE 1Due to the discontinuous nature of the processing of castings into wrought products, it is not
19、always practical to identify specific castinganalysis with a specific quantity of finished material.4.2 Manufacture:4.2.1 The material shall be manufactured by such hot working, cold working, and annealing processes as to produce a uniformwrought structure in the finished product.4.2.2 The product s
20、hall be hot or cold worked to the finished size, and subsequently annealed when required, to meet the temperproperties specified in the product specification.4.2.3 EdgesThe edges shall be drawn or rolled: refer to Dimensions and Permissible Variations section.5. Chemical Composition5.1 The material
21、of manufacture shall conform to the chemical composition requirements prescribed in the productspecification.5.1.1 Results of analysis on a product (check) sample shall conform to the composition requirements within the permittedanalytical variance specified in the product specification.5.2 The comp
22、osition limits established for the Copper Alloy UNS No. designation specified in the product specification do notpreclude the presence of other elements. By agreement between the manufacturer and the purchaser, limits may be established andanalysis required for unnamed elements.5.3 When chemical com
23、position has been determined during the course of manufacture, analysis of the finished product by themanufacturer is not required unless specifically stipulated in the contract or purchase order.6. Dimensions and Permissible Variations6.1 GeneralFor the purpose of determining conformance with the d
24、imensional requirements prescribed in this specification,any measured value outside the specified limiting value for any dimension may be cause for rejection.6.1.1 The dimensions and tolerances for products referenced to this specification, shall be as noted in the following paragraphsand tables, wh
25、ere the product specification is noted in the table heading.NOTE 2Blank spaces in the tolerance tables indicate either that the materialproduct is not generally available or that no tolerances have beenestablished.6.2 Diameter or Distance Between Parallel SurfacesThe method of specifying wire diamet
26、er or distances between parallelsurfaces shall be in decimal fractions of an inch or in millimetres. The tolerances shall be that shown in millimeters.Table 1 andTable 2 for the product specification indicated.Table 1Tolerances for diameter or distances between parallel surfaces of wire applicable t
27、o Specifications B16/B16M,B99/B99M (Alloy C65100), B134/B134M, B301/B301M, and B453/B453M.1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod, Bar,Wire, Shapes and Forgings.Current edition app
28、roved Oct. 1, 2007Oct. 1, 2012. Published October 2007November 2012. Originally approved in 1951. Last previous edition approved in 19952007as B250 95.B250 07. DOI: 10.1520/B0250_B0250M-07.10.1520/B0250_B0250M-12.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM
29、Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.B250/B250M 122Table 2Tables 1 and 2Tolerances List the tole
30、rances for diameter or distances between parallel surfaces of wire applicableto Specificationsin round, hexagonal B99/B99M (Alloy C65500), B159/B159M, B197/B197M, and B206/B206M.octagonal crosssections.6.3 ThicknessThe method of specifying thickness of wire shall be in decimal fractions of an inch o
31、r in mm. The tolerancesshall be shown in millimeters.Table 3 and Table 4 for the product specification indicated:Table 3Tables 3 and 4Thickness List the thickness tolerances for flat (rectangular and square) wire applicable toSpecificationwire in rectangular and B134/B134M.square cross sections.Tabl
32、e 4Thickness tolerances for flat (rectangular and square) wire applicable to Specifications B159/B159M, B197/B197M,and B206/B206M.6.4 WidthThe method of specifying width shall be in decimal fractions of an inch or in mm. The tolerances shall be that shownin millimeter.Table 5 and Table 6.Table 5Tabl
33、es 5 and 6Width List the width tolerances for flat (rectangular and square) wire applicable to Specificationwirein rectangular and B134/B134M.square cross sections.Table 6Width tolerances for flat (rectangular and square) wire applicable to Specifications B159/B159M, B197/B197M, andB206/B206M.6.5 Le
34、ngth:6.5.1 Round, hexagonal, and octagonal wire shall be furnished in coils or reels, consisting of a single length as may be agreedupon between the manufacturer and the purchaser.6.5.2 Flat (rectangular and square) wire when furnished in straight, specific, or stock lengths shall not exceed the len
35、gthtolerances in Table 7.Table 7Length tolerances for straight lengths, specific or stock, of flat (rectangular or square) wire applicable to SpecificationsB134/B134M, B159/B159M, B197/B197M, and B206/B206M.6.5.3 Stock lengths with short lengths included as specified in Table 8 shall be furnished, u
36、nless the contract or purchase orderspecifically states stock or specific lengths are required.Table 8Schedule Lists the schedule of lengths, specific or stock, with ends, for flat (rectangular or square) wire furnishedin straight lengths applicable to Specifications lengths.B134/B134M, B159/B159M,
37、B197/B197M, and B206/B206M.6.6 StraightnessFor flat (rectangular and square) wire furnished in straight lengths in applicable to Specificationsspecifications B134/B134M, B159/B159M, B197/B197M, and B206/B206M, the deviation from straightness shall not exceed thelimitations specified in Table 9. To d
38、etermine compliance with this tolerance, the lengths shall, in case of disagreement, be checkedby placing the lengths on a level table so that the arc or departure from straightness is horizontal. Measure the depth of the arcto the nearest 132 in. 1 mm using a straight-edge.6.6.1 To determine compli
39、ance with this tolerance, the lengths shall, in case of disagreement, be checked by placing the lengthson a level table so that the arc or departure from straightness is horizontal. Measure the depth of the arc to the nearest 132 in. 1mm using a straight-edge.6.7 Edge ContoursFlat (rectangular and s
40、quare) wire applicable to Specificationslisted B134/B134M,specifications B159/B159M, B197/B197M, and B206/B206Mshall, unless otherwise specified in the contract or purchase order, be finished withTABLE 1 Tolerances for Diameter or Distance Between ParallelSurfaces of Wire(Applicable to Specification
41、s B16/B16M, B99/B99M Copper Alloy UNSNo. C65100, B134/B134M, B301/B301M, B453/B453Mand, B453/B453MB967/B967M, and B974/B974M.)Diameter or DistanceBetween ParallelSurfaces,in. mmTolerances, Plus and MinusARound,in. mmHexagonal,Octagonal,in. mmUp to 0.010 0.25, incl 0.0001 0.003 . . . . . .Over 0.0100
42、.020 0.250.50,incl0.0002 0.005 . . . . . .Over 0.0200.030 0.500.75,incl0.0003 0.008 . . . . . .Over 0.0300.040 0.751.0, incl 0.0004 0.010 0.0008 0.020Over 0.0400.050 1.01.2, incl 0.0005 0.013 0.0010 0.025Over 0.0500.060 1.21.5, incl 0.0006 0.015 0.0012 0.030Over 0.0600.080 1.52.0, incl 0.0008 0.020
43、0.0016 0.040Over 0.0800.150 2.03.8, incl 0.0010 0.025 0.002 0.050Over 0.1500.500 3.812, incl 0.0015 0.040 0.003 0.075Over 0.5000.750 1220, incl 0.002 0.050 0.004 0.10AIf tolerances are specified as all plus or all minus, double the values given.B250/B250M 123commercially square corners with a maximu
44、m permissible radius of 1100 in. 0.3 mm for wire 132 to 116 in. 1 to 1.5 mm inclusivein thickness, and of 164 in. 0.4 mm for wire over 116 to 316 in. 1.5 to 5 mm inclusive in thickness.6.7.1 Sharp CornersWhen specified in the contract or purchaser order, the corner radius shall be 0.003 in. 0.080 mm
45、maximum on all sizes of flat wire up to and including 0.188 in. 5 mm between flats.6.7.2 Rounded CornersWhen specified in the contract or purchase order, flat wire over 18 to 316 in. 3 to 5 mm, inclusivein thickness may be finished with corners rounded as shown in Fig. 1 to a quarter of a radius of
46、132 in. 1 mm. The tolerance onthe radius shall be 625 %. Wire up to 18 in. 3 mm inclusive in thickness, may be finished with a full rounded edge as describedin 6.7.4.6.7.3 Round EdgeWhen specified in the contract or purchase order, flat wire may be finished with edges rounded as shownin Fig. 2, the
47、radius of curvature being 114 times the thickness for flat wire with a thickness up to 316 in. 5 mm inclusive. Thetolerance on the radius is 612 times the wire thickness.TABLE 2 Tolerances for Diameter or Distance Between ParallelSurfaces of Wire(Applicable to Specifications B99/B99M Copper Alloy UN
48、S No.C65500, B159/B159M, B197/B197M, and B206/B206M.)Diameter or DistanceBetween ParallelSurfaces,in. mmTolerances, Plus and MinusARound,in. mmHexagonal,Octagonal,in. mmUp to 0.010 0.25, incl 0.0002 0.005 . . . . . .Over 0.0100.020 0.250.50,incl0.0003 0.008 . . . . . .Over 0.0200.030 0.500.75,incl0.
49、0005 0.013 . . . . . .Over 0.0300.040 0.751.0, incl 0.0007 0.018 0.002 0.050Over 0.0400.050 1.01.2, incl 0.0008 0.020 0.003 0.075Over 0.0500.060 1.21.5, incl 0.0010 0.025 0.003 0.075Over 0.0600.080 1.52.0, incl 0.0015 0.040 0.004 0.10Over 0.0800.150 2.03.8, incl 0.002 0.050 0.004 0.10Over 0.1500.500 3.812, incl 0.002 0.050 0.004 0.10Over 0.5000.750 1220, incl 0.0
