1、Designation: B206/B206M 12 (Reapproved 2017)Standard Specification forCopper-Nickel-Zinc (Nickel Silver) Wire and Copper-NickelAlloy Wire1This standard is issued under the fixed designation B206/B206M; the number immediately following the designation indicates the yearof original adoption or, in the
2、 case of revision, the 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 U.S. Department of Defense.1. Scope*1.1
3、This specification establishes the requirements for wirein round, hexagonal, octagonal, rectangular, and square form ofUNS Alloy Nos. C71000, C74500, C75200, C75700, C76400,C77000, and C79200.1.2 This specification is general in that the product is used inmany applications where the requirements are
4、 too particular tobe specified by standard test results.1.2.1 For particular or critical applications it is advisable forthe purchaser to submit samples or drawings to the manufac-turer to secure an adjustment of anneal or temper to suit theapplication for which the product is intended.1.3 The follo
5、wing information is intended to assist thepurchaser in the application of this specification:1.3.1 For most general applicationsUNS Alloy Nos.C71000, C74500, C75200, and C75700.1.3.2 For hard or spring tempersUNS Alloy Nos. C76400and C77000.1.3.3 For ease of machiningUNS Alloy No. C79200.1.4 UnitsVa
6、lues stated in either inch-pound units or SIunits are to be regarded separately as 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 syst
7、ems may result in nonconformance with thestandard.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by
8、 the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B250/B250M Specification for General Requirements forWrought Copper Alloy WireB601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastB846 Terminology fo
9、r Copper and Copper AlloysB950 Guide for Editorial Procedures and Form of ProductSpecifications for Copper and Copper AlloysE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE62 Test Methods for Chemical Analysis of Copper andCopperAlloys (Photometric Methods) (Withdrawn 2010)3E112 Test
10、Methods for Determining Average Grain SizeE478 Test Methods for Chemical Analysis of Copper Alloys3. General Requirements3.1 The following sections of Specification B250/B250Mconstitute a part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Workmanship, Finish, and Appe
11、arance,3.1.4 Sampling3.1.5 Number of Tests and Retests,3.1.6 Specimen Preparation,3.1.7 Test Methods,3.1.8 Significance of Numerical Limits,3.1.9 Inspection,3.1.10 Rejection and Rehearing,3.1.11 Certification,3.1.12 Test Reports (Mill),3.1.13 Packaging and Package Marking, and3.1.14 Supplemental Req
12、uirements.3.2 In addition, when a section with a title identical to oneof those referenced in 3.1 appears in this specification, it1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,Bar, Wire, S
13、hapes and Forgings.Current edition approved April 1, 2017. Published April 2017. Originallyapproved in 1946. Last previous edition approved in 2012 as B206/B206M-12. DOI:10.1520/B0206_B0206M-12R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service a
14、t serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM
15、International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standa
16、rds, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1contains additional requirements that supplement those whichappear in Specification B250/B250M.4. Terminology4.1 For the definition of general terms related to copper andcopper alloys,
17、 refer to Terminology B846.5. Ordering Information5.1 Include the following specified choices when placingorders for products under this specification, as applicable:5.1.1 ASTM designation and year of issue,5.1.2 Copper Alloy UNS No. (Section 1),5.1.3 Temper designation (Section 8),5.1.4 QuantityTot
18、al weight or length or number of piecesof each temper, form, or alloy.5.1.5 DimensionsDiameter, distance between parallelsurfaces,5.1.6 How furnishedspecific lengths, coils, reels, and soforth, and5.1.7 Intended application.5.2 The following options are available but may not beincluded unless specif
19、ied at the time of placing of the order,when required:5.2.1 Heat identification or traceability details,5.2.2 Certification (Specification B250/B250M), and5.2.3 Mill Test Reports (Specification B250/B250M).5.2.4 If product is purchased for agencies of the U.S.Government (Specification B250/B250M).6.
20、 Material and Manufacture6.1 MaterialThe material shall be made from cast orwrought billets, logs or rods of Copper Alloy UNS Nos.C71000, C74500, C75200, C75700, C76400, C77000, orC79200, and shall be of such soundness and structure as toenable them to be processed into the desired product.6.1.1 Whe
21、n specified in the contract or purchase order, thatheat identification or traceability is required, the purchasershall specify the details required.6.2 ManufactureThe product shall be manufactured bysuch hot-working, cold-working, straightening, coiling or reel-ing and annealing processing needed to
22、 produce a uniformwrought structure and obtain the finish properties specified inthe purchase order or contract.7. Chemical Composition7.1 The material shall conform to the chemical compositionrequirements in Table 1 for the Copper Alloy UNS No.specified in the ordering information:7.1.1 These compo
23、sition limits do not preclude the presenceof other elements. When required, limits may be establishedand analysis required for unnamed elements by agreementbetween the supplier and the purchaser.7.2 For UNS No. C71000, in which copper is listed as theremainder, the copper content may be determined a
24、s thedifference between the sum of results for all elements analyzedand 100 %.7.3 For those copper alloys in which zinc is specified as theremainder, either copper or zinc may be taken as the differencebetween the sum of all elements analyzed and 100 %. Whencopper is so determined, that difference v
25、alue shall conform tothe requirements given in Table 1.7.4 When all elements listed in Table 1 for the CopperAlloyUNS No. prescribed in the ordering information aredetermined, the sum of results shall be 99.5 % minimum.8. Temper8.1 Tempers, as defined in Classification B601, available tothis specifi
26、cation are as prescribed in Table 2, Table 3, andTable 4 in the various alloys and sizes listed.8.2 Hexagonal, octagonal, rectangular, and square wire arenormally furnished in H01 (quarter-hard) temper.8.3 UNS Alloy Nos. C76400 and C77000 are normallyfurnished in the H04 (hard), H08 (spring), or H14
27、 (extraspring) tempers.9. Grain Size for Annealed Wire9.1 Product furnished in the OS (annealed) condition shallconform to the requirements specified in Table 4 for the temperand Copper Alloy UNS No. designated in the orderinginformation, when tested in accordance with Test MethodsE112.9.1.1 Grain s
28、ize shall be the standard requirement forproduct ordered in the OS (annealed) condition and acceptanceor rejection based upon grain size shall depend upon theaverage grain size test results obtained.10. Mechanical Property Requirements10.1 Tensile Strength Requirements:10.1.1 Round wire 0.020 throug
29、h 0.250 in. 0.50 through6.0 mm in diameter of the Copper Alloy UNS No. specified inthe ordering information shall conform to the requirements ofTable 2 or Table 3 for the prescribed H (cold-worked) temperordered.TABLE 1 Chemical RequirementsCopper Alloy UNSNo.Composition, %Copper Nickel (incl cobalt
30、) Lead Iron, max Manganese, max ZincC71000 remainder 19.0-23.0 0.05 max 1.0 1.0 1.0 maxC74500 63.5-66.5 9.0-11.0 0.05 max 0.25 0.50 remainderC75200 63.0-66.5 16.5-19.5 0.05 max 0.25 0.50 remainderC75700 63.5-66.5 11.0-13.0 0.05 max 0.25 0.50 remainderC76400 58.5-61.5 16.5-19.5 0.05 max 0.25 0.50 rem
31、ainderC77000 53.5-56.5 16.5-19.5 0.05 max 0.25 0.50 remainderC79200 59.0-66.5 11.0-13.0 0.8-1.4 0.25 0.50 remainderB206/B206M 12 (2017)210.1.1.1 Tensile strength shall be the standard temper testfor round wire in the size range noted above when ordered inthe H (cold-worked) condition. Acceptance or
32、rejection basedupon mechanical properties shall depend upon the tensile testresults obtained when tested in accordance with Test MethodsE8/E8M.10.1.2 Requirements for round wire in sizes smaller than0.020 in. 0.50 mm or larger than 0.250 in. 6.0 mm shall beby agreement between the supplier and the p
33、urchaser.10.1.3 Requirements for wire other than round shall be byagreement between the supplier and the purchaser.11. Performance Requirements11.1 Bending Requirements:11.1.1 Wire of tempers H04 (hard), H08 (spring), and H14(extra spring) in sizes up to 0.250 in. 6 mm inclusive, shallwithstand bein
34、g bent cold through an angle of 120 on a radiusequal to the diameter or distance between parallel surfaces ofthe wire, without developing cracks or other flaws visible to theunaided eye.12. Dimensions, Mass and Permissible Variations12.1 Refer to the appropriate paragraphs in SpecificationB250/B250M
35、 with particular reference to the following tables:12.1.1 Diameter or Distance Between Parallel SurfacesTable 2,12.1.2 Thickness, Table 4,12.1.3 Width, Table 6,12.1.4 Length, Tables 7 and 8, and12.1.5 Straightness, Table 9.TABLE 2 Mechanical Requirements for Round Wire 0.020 to 0.250 in., Inclusive,
36、 in DiameterTemper DesignationTensile Strength, ksiCopper Alloy UNS No.Code Temper Name C71000 C74500 and C75700 C75200C76400 andC77000C79200H01 quarter-hard 55 73 68 74 7072 88 84 93 90H02 half-hard 67 88 83 92 9083 103 97 110 110H04 hard 77 108 99 112 10492 123 111 128 124H08 spring0.020 to 0.0253
37、 in., incl 90 min 130 min . 130 min .Over 0.0253 to 0.0625 in., incl 88 min 125 min . 125 min .Over 0.0625 to 0.125 in., incl 85 min 120 min . 120 min .Over 0.125 to 0.250 in., incl 83 min 112 min . 120 min .H14 super spring0.020 to 0.040 in. 100 . . . .115 . . . .TABLE 3 Mechanical Requirements for
38、 Round Wire 0.50 to 6.0 mm, Inclusive, in DiameterTemper DesignationTensile Strength, MPaCopper Alloy UNS No.Code Temper Name C71000C74500 andC75700C75200C76400andC77000C79200H01 quarter-hard 380 505 470 510 485495 605 580 640 620H02 half-hard 460 605 570 635 620570 710 670 760 760H04 hard 530 745 6
39、85 770 715635 850 765 885 855H08 springOver 0.50 to 0.65 mm, incl 620 min 895 min . 895 min .Over 0.65 to 1.60 mm, incl 605 min 860 min . 860 min .Over 1.60 to 3.0 mm, incl 585 min 825 min . 825 min .Over 3.0 to 6.0 mm, incl 570 min 770 min . 830 min .H14 super spring 690 . . . .0.50 to 1.0 mm, incl
40、 795 . . . .TABLE 4 Grain Size Requirements for Annealed WireCopper Alloy UNS No. TemperGrain Size, mmNominal Minimum MaximumC71000 OS015 0.015 . 0.030C71000 OS035 0.035 0.025 0.050C74500, C75200,C75700, C76400,C77000, and C79200OS015 0.015 . 0.030C74500, C75200,C75700, C76400,C77000, and C79200OS03
41、5 0.035 0.025 0.050C74500, C75200,C75700, C76400, andC77000OS070 0.070 0.050 0.100B206/B206M 12 (2017)313. Test Methods13.1 Chemical Analysis:13.1.1 In cases of disagreement test methods for chemicalanalysis shall be subject to agreement between the manufac-turer or supplier and the purchaser.13.1.2
42、 The following table is a list of published testmethods, some of which are considered by ASTM as no longerviable. These and others not listed may be used subject toagreement.Element Test MethodCopper E478Nickel and Cobalt E478 (Gravimetric)Lead E478 (AA)Iron E478Manganese E62Zinc (1 % max) E478 (AA)
43、Zinc (1 %) E478 (Titrimetric)13.1.3 Test Method(s) to be followed for the determinationof elements required by contractual or purchase order agree-ment shall be as agreed upon between the supplier and thepurchaser.14. Keywords14.1 copper-alloy wire; copper-nickel wire; general purposewire; high stre
44、ngth wire; nickel silver wire; non-electrical wire;UNS No. C71000 wire; UNS No. C74500 wire; UNS No.C75200 wire; UNS No. C76400 wire; UNS No. C77000 wire;UNS No. C79200 wireSUMMARY OF CHANGESCommittee B05 has identified the principal changes to this specification since the 2007 issue as follows:(1)
45、Minor editing to conform to Standard Guide B950 forEditorial Procedures.(2) Made a few changes in the Metric Tensile Strengths toconform to Rational (within 5 MPa) rounding.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentione
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