1、Designation: B 250/B 250M 07Standard Specification forGeneral Requirements for Wrought Copper Alloy Wire1This standard is issued under the fixed designation B 250/B 250M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of
2、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.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification establishes requ
3、irements common towrought copper and copper alloy wire and shall apply toSpecifications B 16/B 16M, B 99/B 99M, B 134/B 134M,B 159/B 159M, B 197/B 197M, B 206/B 206M, B 272, B 301/B 301M and B 453/B 453M to the extent referenced therein.1.2 The chemical composition, physical and mechanicalproperties
4、, and all other requirements not included in thisspecification shall be prescribed in the product specification.1.3 The following safety hazard caveat pertains only to thetest methods described in this specification.1.3.1 This standard does not purport to address all of thesafety concerns, if any, a
5、ssociated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and to determine the appli-cability of regulatory limitations prior to use.1.4 UnitsValues stated in either SI units or inch-poundunits are to be regarded separately as
6、standard. Within the text,SI units are shown in brackets. The values stated in eachsystem may not be exact equivalents; therefore, each systemshall be used independently of the other. Combining valuesfrom the two systems may result in non-conformance with thestandard.2. Referenced Documents2.1 ASTM
7、Standards:2B 16/B 16M Specification for Free-Cutting Brass Rod, Barand Shapes for Use in Screw MachinesB 99/B 99M Specification for Copper-Silicon Alloy Wirefor General ApplicationsB 134/B 134M Specification for Brass WireB 159/B 159M Specification for Phosphor Bronze WireB 193 Test Method for Resis
8、tivity of Electrical ConductorMaterialsB 194 Specification for Copper-Beryllium Alloy Plate,Sheet, Strip, and Rolled BarB 197/B 197M Specification for Copper-Beryllium AlloyWireB 206/B 206M Specification for Copper-Nickel-Zinc(Nickel Silver) Wire and Copper-Nickel Alloy WireB 272 Specification for C
9、opper Flat Products with Finished(Rolled or Drawn) Edges (Flat Wire and Strip)B 301/B 301M Specification for Free-Cutting Copper Rod,Bar, Wire, and ShapesB 453/B 453M Specification for Copper-Zinc-Lead Alloy(Leaded-Brass) Rod, Bar, and ShapesB 846 Terminology for Copper and Copper AlloysE3 Guide for
10、 Preparation of Metallographic SpecimensE8 Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Mate-rials MetricE18 Test Methods for Rockwell Hardness of MetallicMaterialsE 18M Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of M
11、etallic Materials Metric3E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE54 Test Methods for Chemical Analysis of SpecialBrasses and Bronzes4E62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E75 Test Methods for
12、Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc AlloysE112 Test Methods for Determining Average Grain SizeE118 Test Methods for Chemical Analysis of Copper-Chromium AlloysE 121 Test Methods for Chemical Analysis of Copper-Tellurium AlloysE 255 Practice for Sampling Copper and Copper Alloys
13、forthe Determination of Chemical CompositionE 478 Test Methods for Chemical Analysis of CopperAlloysE 581 Test Methods for Chemical Analysis of Manganese-Copper Alloys1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Sub
14、committee B05.02 on Rod,Bar, Wire, Shapes and Forgings.Current edition approved Oct. 1, 2007. Published October 2007. Originallyapproved in 1951. Last previous edition approved in 1995 as B 250 95.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service a
15、t serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.4Withdrawn.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Cons
16、hohocken, PA 19428-2959, United States.3. Terminology3.1 For definitions of terms related to copper and copperalloys, refer to Terminology B 846.4. 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 cov
17、ered by theproduct specification, of such purity and soundness as to besuitable for processing into the products required.4.1.2 In the event heat identification or traceability isrequired, the purchaser shall specify the details desired.NOTE 1Due to the discontinuous nature of the processing of cast
18、ingsinto wrought products, it is not 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 hotworking, cold working, and annealing processes as to producea uniform wrought structure in the
19、finished product.4.2.2 The product shall be hot or cold worked to the finishedsize, and subsequently annealed when required, to meet thetemper properties specified in the product specification.4.2.3 EdgesThe edges shall be drawn or rolled: refer toDimensions and Permissible Variations section.5. Che
20、mical Composition5.1 The material of manufacture shall conform to thechemical composition requirements prescribed in the productspecification.5.1.1 Results of analysis on a product (check) sample shallconform to the composition requirements within the permittedanalytical variance specified in the pr
21、oduct specification.5.2 The composition limits established for the Copper AlloyUNS No. designation specified in the product specification donot preclude the presence of other elements. By agreementbetween the manufacturer and the purchaser, limits may beestablished and analysis required for unnamed
22、elements.5.3 When chemical composition has been determined dur-ing the course of manufacture, analysis of the finished productby the manufacturer is not required unless specifically stipu-lated in the contract or purchase order.6. Dimensions and Permissible Variations6.1 GeneralFor the purpose of de
23、termining conformancewith the dimensional requirements prescribed in this specifi-cation, any measured value outside the specified limiting valuefor any dimension may be cause for rejection.NOTE 2Blank spaces in the tolerance tables indicate either that thematerial is not generally available or that
24、 no tolerances have beenestablished.6.2 Diameter or Distance Between Parallel SurfacesThemethod of specifying wire diameter or distances betweenparallel surfaces shall be in decimal fractions of an inch or inmillimetres. The tolerances shall be that shown in Table 1 andTable 2 for the product specif
25、ication indicated.Table 1Tolerances for diameter or distances betweenparallel surfaces of wire applicable to Specifications B 16/B 16M, B 99/B 99M (Alloy C65100), B 134/B 134M, B 301/B 301M, and B 453/B 453M.Table 2Tolerances for diameter or distances betweenparallel surfaces of wire applicable to S
26、pecifications B 99/B 99M (Alloy C65500), B 159/B 159M, B 197/B 197M, andB 206/B 206M.6.3 ThicknessThe method of specifying thickness of wireshall be in decimal fractions of an inch or in mm. Thetolerances shall be shown in Table 3 and Table 4 for the productspecification indicated:Table 3Thickness t
27、olerances for flat (rectangular andsquare) wire applicable to Specification B 134/B 134M.TABLE 1 Tolerances for Diameter or Distance Between ParallelSurfaces of Wire(Applicable to Specifications B 16/B 16M, B 99/B 99M Copper AlloyUNS No. C65100, B 134/B 134M, B 301/B 301M and B 453/B 453M.)Diameter
28、or DistanceBetween ParallelSurfaces,in. mmTolerances, Plus and MinusARound,in. mmHexagonal, Octagonal,in. mmUp to 0.010 0.25, incl 0.0001 0.003 . . . . . .Over 0.0100.020 0.250.50, incl 0.0002 0.005 . . . . . .Over 0.0200.030 0.500.75, incl 0.0003 0.008 . . . . . .Over 0.0300.040 0.751.0, incl 0.000
29、4 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 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 0.5000.7
30、50 1220, incl 0.002 0.050 0.004 0.10AIf tolerances are specified as all plus or all minus, double the values given.TABLE 2 Tolerances for Diameter or Distance Between ParallelSurfaces of Wire(Applicable to Specifications B 99/B 99M Copper Alloy UNS No.C65500, B 159/B 159M, B 197/B 197M,andB 206/B 20
31、6M.)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, incl 0.0003 0.008 . . . . . .Over 0.0200.030 0.500.75, incl 0.0005 0.013 . . . . . .Over 0.0300.040 0.751.
32、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 0.50
33、00.750 1220, incl 0.003 0.075 0.005 0.13TABLE 3 Thickness Tolerances for Flat (Rectangular andSquare) Wire(Applicable to Specification B 134/B 134M.)Thickness, in. mmThickness Tolerances, Plus andMinus,Ain. mm for Widths Given inInches mmUp to12 12, inclOver12 12 to 11432, inclUp to 0.013 0.33, incl
34、 0.0010 0.025 0.0013 0.033Over 0.0130.050 0.331.25, incl 0.0013 0.033 0.0015 0.040Over 0.0500.090 1.252.30, incl 0.0015 0.040 0.002 0.050Over 0.0900.130 2.303.30, incl 0.002 0.050 0.0025 0.065Over 0.1300.188 3.304.80, incl 0.003 0.075 0.0035 0.090AIf tolerances are specified as all plus or all minus
35、, double the values given.B 250/B 250M 072Table 4Thickness tolerances for flat (rectangular andsquare) wire applicable to Specifications B 159/B 159M,B 197/B 197M, and B 206/B 206M.6.4 WidthThe method of specifying width shall be indecimal fractions of an inch or in mm. The tolerances shall bethat s
36、hown in Table 5 and Table 6.Table 5Width tolerances for flat (rectangular and square)wire applicable to Specification B 134/B 134M.Table 6Width tolerances for flat (rectangular and square)wire applicable to Specifications B 159/B 159M, B 197/B 197M, and B 206/B 206M.6.5 Length:6.5.1 Round, hexagonal
37、, and octagonal wire shall be fur-nished in coils or reels, consisting of a single length as may beagreed upon between the manufacturer and the purchaser.6.5.2 Flat (rectangular and square) wire when furnished instraight, specific, or stock lengths shall not exceed the toler-ances in Table 7.Table 7
38、Length tolerances for straight lengths, specific orstock, of flat (rectangular or square) wire applicable to Speci-fications B 134/B 134M, B 159/B 159M, B 197/B 197M, andB 206/B 206M.6.5.3 Stock lengths with short lengths included as specifiedin Table 8 shall be furnished, unless the contract or pur
39、chaseorder specifically states stock or specific lengths are required.Table 8Schedule of lengths, specific or stock, with ends,for flat (rectangular or square) wire furnished in straightlengths applicable to Specifications B 134/B 134M, B 159/B 159M, B 197/B 197M, and B 206/B 206M.6.6 StraightnessFo
40、r flat (rectangular and square) wirefurnished in straight lengths applicable to Specifications B 134/B 134M, B 159/B 159M, B 197/B197M, and B 206/B 206M,the deviation from straightness shall not exceed the limitationsspecified in Table 9. To determine compliance with thistolerance, the lengths shall
41、, in case of disagreement, bechecked by placing the lengths on a level table so that the arcor departure from straightness is horizontal. Measure the depthof the arc to the nearest132 in. 1 mm using a straight-edge.6.7 Edge ContoursFlat (rectangular and square) wireapplicable to Specifications B 134
42、/B 134M, B 159/B 159M,B 197/B 197M, and B 206/B 206M shall, unless otherwiseTABLE 4 Thickness Tolerances for Flat (Rectangular andSquare) Wire(Applicable to Specifications B 159/B 159M, B 197/B 197M, andB 206/B 206M.)Thickness, in. mmThickness Tolerances, Plus andMinus,Ain. mm for Widths Given inInc
43、hes mmUp to12 12, inclOver12 to 114 12to 32, inclUp to 0.050 1.2, incl 0.0015 0.040 0.002 0.050Over 0.0500.090 1.22.3, incl 0.002 0.050 0.003 0.075Over 0.0900.130 2.33.3, incl 0.003 0.075 0.004 0.10Over 0.1300.188 3.34.8, incl 0.004 0.10 0.0045 0.11AIf tolerances are specified as all plus or all min
44、us, double the values given.TABLE 5 Width Tolerances for Flat (Rectangular) Wire(Applicable to Specification B 134/B 134M.)(For Square Wire Use Thickness Tolerances in Table 3.)Width, in. mmTolerances, Plus andMinus,Ain. mmUp to 0.050 1.25, incl 0.0013 0.025Over 0.0500.090 1.252.30, incl 0.0015 0.04
45、0Over 0.0900.130 2.303.30, incl 0.002 0.050Over 0.1300.188 3.304.80, incl 0.003 0.075Over 0.1880.500 4.8012.5, incl 0.0035 0.090Over 0.5001.25 12.532.0, incl 0.005 0.125AIf tolerances are specified as all plus or all minus, double the values given.TABLE 6 Width Tolerances for Flat (Rectangular) Wire
46、(Applicable to Specifications B 159/B 159M, B 197/B 197M, andB 206/B 206M.)(For Square Wire Use Thickness Tolerances in Table 4.)Width, in. mmTolerances, Plus andMinus,Ain. mmUp to 0.050 1.2, incl 0.0015 0.040Over 0.0500.090 1.22.3, incl 0.002 0.050Over 0.0900.130 2.33.3, incl 0.003 0.075Over 0.1300
47、.188 3.34.8, incl 0.004 0.10Over 0.1880.500 4.812, incl 0.005 0.13Over 0.5001.25 1232, incl 0.007 0.18AIf tolerances are specified as all plus or all minus, double the values given.TABLE 7 Length Tolerances for Straight Lengths (Specific andStock) of Flat (Rectangular and Square) Wire(Applicable to
48、Specifications B 134/B 134M, B 159/B 159M, B 197/B 197M, and B 206/B 206M.)LengthsLength Tolerances Applicable Only toFull Length PiecesAin. mmSpecific lengths38 10Specific lengths with ends 1 25Stock lengths with or without ends 1 25BATolerances are all plus; if all minus tolerances are desired, use the samevalues; if tolerances plus and minus are desired, halve the values given.BAs stock lengths are cut and placed in stock in advance of orders, departurefrom this tolerance is not practicable.TABLE 8 Schedule of Lengths (
