1、Designation: B888/B888M 13B888/B888M 17Standard Specification forCopper Alloy Strip for Use in Manufacture of ElectricalConnectors or Spring Contacts1This standard is issued under the fixed designation B888/B888M; the number immediately following the designation indicates the yearof original adoptio
2、n or, in the 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.1. Scope*1.1 This specification establishes the requirements for copper alloy strip for
3、 use in the manufacture of electrical connectors orspring contacts produced from one of the following Copper Alloy UNS Nos.2: C14530, C15100, C15500, C17000, C17200,C17410, C17450, C17460, C17500, C17510, C19002, C19010, C19015, C19025, C19210, C19400, C19500, C19700, C23000,C26000, C40810, C40850,
4、C40860, C42200, C42500, C42520, C42600, C50580, C50780, C51000, C51080, C51100, C51180,C51980, C52100, C52180, C52480, C63800, C64725, C65400, C68800, C70250, C70260, C70265, C70310, C70350, C75200,and C76200.1.2 The requirements for the other copper alloys such as copper-nickel-tin spinodal, UNS C7
5、2650, C72700, and C72900, shallbe as prescribed in the current edition of Specification B740.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used inde
6、pendently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of Inter
7、national Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3B193 Test Method for Resistivity of Electrical Conductor MaterialsB248 Specification for General Requirements for Wrought Copper
8、 and Copper-Alloy Plate, Sheet, Strip, and Rolled BarB248M Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar(Metric)B601 Classification for Temper Designations for Copper and Copper AlloysWrought and CastB740 Specification for Copper-Nicke
9、l-Tin Spinodal Alloy StripB820 Test Method for Bend Test for Determining the Formability of Copper and Copper Alloy StripB846 Terminology for Copper and Copper AlloysE8/E8M Test Methods for Tension Testing of Metallic MaterialsE54 Test Methods for Chemical Analysis of Special Brasses and Bronzes (Wi
10、thdrawn 2002)4E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)4E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys (Withdrawn 2010)4E478 Test Methods for Chemical Analysis of Copper AlloysE527 Practice for Num
11、bering Metals and Alloys in the Unified Numbering System (UNS)1 This specification is under the jurisdiction of Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.01 on Plate, Sheet, andStrip.Current edition approved Oct. 1, 2013April 1, 2017. Published Nov
12、ember 2013April 2017. Originally approved in 1998. Last previous edition approved in 20122013 asB888 12.B888/B888M-13. DOI: 10.1520/B0888_B0888M-13.10.1520/B0888_B0888M-17.2 The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation syste
13、m accomplished by the addition of aprefix “c” and a suffix “00.” The suffix can be used to accommodate composition variations of the base alloy.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvo
14、lume information, refer to the standardsstandards Document Summary page on the ASTM website.4 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what c
15、hanges have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the of
16、ficial document.*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 States12.2 ISO Standards:5ISO 4744 Copper and CopperAlloysDetermination of Chromium ContentFlameAtomicAbsorption
17、 Spectrometric MethodISO 7602 Copper and Copper AlloysDetermination of Tellurium Content3. Terminology3.1 DefinitionsFor definition of terms used in this specification, refer to Terminology B846.4. General Requirements4.1 For product furnished under this specification in English units, the following
18、 sections of Specification B248 must constitutea part of this specification. For product furnished under this specification in the SI units, the following sections of SpecificationB248M must constitute a part of this specification.4.1.1 Terminology,4.1.2 Materials and Manufacture,4.1.3 Dimensions, W
19、eights, and Permissible Variations,4.1.4 Workmanship, Finish, and Appearance,4.1.5 Sampling,4.1.6 Number of Tests and Retests,4.1.7 Specimen Preparation,4.1.8 Test Methods,4.1.9 Significance of Numerical Limits,4.1.10 Certification,4.1.11 Test Reports, and4.1.12 Packaging and Package Marking.4.2 In
20、the event of a conflict between this specification and Specification B248 or B248M, the requirements of this specificationshall take precedence.5. Classification5.1 Product produced to this specification is classified as strip material to be used for spring contact or electrical and electronicconnec
21、tor applications only.6. Ordering Information6.1 Contract or purchase orders for product under this specification should include the following information:6.1.1 ASTM designation and year of issue,6.1.2 UNS alloy designation,6.1.3 Dimensions, for example, thickness, width,6.1.4 Quantity, and6.1.5 Tem
22、per (Section 8).6.2 The following options are available under this specification and shall be specified in the contract or purchase order whenrequired:6.2.1 Type of edge: slit, sheared, sawed, square corners, rounded corners, rounded edges, or full-rounded edges (Section 11),6.2.2 Width and straight
23、ness tolerances, slit-metal tolerances, square-sheared metal tolerances, sawed metal tolerances,straightened or edge-rolled metal tolerances (Section 11),6.2.3 Identification marking (Section 22),6.2.4 Certification (Section 20),6.2.5 Mill test report (Section 21), and6.2.6 How packaged: coil wound
24、in traverse or pancake style (Section 22).6.2.6.1 Number of strip lengths per coil,6.2.6.2 Size and weight of each coil, and6.2.7 The electrical resistivity or any other physical and electrical properties (See Table X1.1).7. Materials and Manufacture7.1 MaterialThe material of manufacture shall be a
25、 cast bar, slab, cake, billet, or other form of the composition given in Table1 for the specified alloy, suitable for processing into the product prescribed in this specification.5 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.a
26、nsi.org.B888/B888M 172TABLE 1 Chemical RequirementsElements Composition, %CopperAlloyUNS No. CopperAlum-inumBeryll-ium Cobalt Iron LeadMagnesMagnes-iumiumManganMan-eseganese NickelPhosPhos-phorusphorus Tin ZincChromiumChro-miumZirconiumZirco-nium Silicon SilverTellur-ium OtherC14530 99.90Amin. . . .
27、 . . . . 0.0010.0100.0030.023. . . . . 0.0030.023B.C15100C 99.80Dmin. . . . . . . . . . . . 0.050.15. . . .C15500 99.75Dmin. . . . . 0.080.13. . 0.0400.080. . . . . 0.0270.10. .C17000E remainderD 0.20max1.601.790.20Fmin. . . . . . . . . . 0.20max. . .C17000E remainderD 0.20max1.601.850.20Fmin. . . .
28、 . . . . . . 0.20max. . .C17200E remainderD 0.20max1.802.000.20Fmin. . . . . . . . . . 0.20max. . .C17410E remainderD 0.20max0.150.500.350.60.20max. . . . . . . . . 0.20max. . .C17450E remainderD 0.20max0.150.50. 0.20max. . . 0.501.0. 0.25max. . 0.50 %max0.20max. . .C17450E remainderD 0.20max0.150.5
29、0. 0.20max. . . 0.501.0. 0.25max. . 0.50 %max0.20max. . .C17460E remainderD 0.20max0.150.50. 0.20max. . . 1.01.4. 0.25max. . 0.50 %max0.20max. . .C17500E remainderD 0.20max0.40.72.42.70.10max. . . . . . . . . 0.20max. . .C17510E remainderD 0.20max0.20.60.3max0.10max. . . 1.42.2. . . . . 0.20max. . .
30、C19002E remainderD . . . 0.10 0.05 0.01 . 1.41.7G0.05 0.020.30 0.040.35 . 0.0050.050.200.350.020.50. .C19002E remainderD . . . 0.10 0.05 0.01 . 1.41.7G0.05 0.020.300.040.35. 0.0050.050.200.350.020.50. .C19010E remainderD . . . . . . . 0.81.80.010.05. . . . 0.150.35. . .C19015H remainderD . . . . . 0
31、.020.15 . 0.502.4 0.020.20 . . . . 0.10.40. . .C19015H remainderD . . . . . 0.020.15. 0.502.40.020.20. . . . 0.100.40. . .C19025I remainderD . . . 0.10max. . . 0.81.20.030.070.71.10.20max. . . . . .C19210H remainder . . . 0.050.15. . . . 0.0250.04. . . . . . . .C19400H 97.0 min . . . 2.12.60.03max.
32、. . 0.0150.15. 0.050.20. . . . . .C19500H 96.0 min 0.02max. 0.301.31.02.00.02max. . . 0.010.350.101.00.20max. . . . . .C19700H remainder . . 0.05max0.301.20.05max0.010.200.05max0.05max0.100.400.20max0.20max. . . . . .B888/B888M173TABLE 1 ContinuedElements Composition, %CopperAlloyUNS No. CopperAlum-
33、inumBeryll-ium Cobalt Iron LeadMagnesMagnes-iumiumManganMan-eseganese NickelPhosPhos-phorusphorus Tin ZincChromiumChro-miumZirconiumZirco-nium Silicon SilverTellur-ium OtherC23000H 84.0-86.0 . . . 0.05max0.05max. . . . . remainder . . . . . .C26000I 68.5-71.5 . . . 0.05max0.07max. . . . . remainder
34、. . . . . .C40810I 94.5-96.5 . . . 0.080.120.05max. . 0.110.200.0280.041.82.2remainder . . . . . .C40850I 94.5-96.5 . . . 0.050.200.05max. . 0.050.200.010.202.64.0remainder . . . . . .C40860I 94.0-96.0 . . . 0.010.050.05max. . 0.050.200.020.041.72.3remainder . . . . . .C42200I 86.0-89.0 . . . 0.05ma
35、x0.05max. . . 0.35max0.81.4remainder . . . . . .C42500I 87.0-90.0 . . . 0.05max0.05max. . . 0.35max1.53.0remainder . . . . . .C42520I 88.0-91.0 . . . 0.050.200.05max. . 0.050.200.010.201.53.0remainder . . . . . .C42600I 87.0-90.0D . . . 0.050.200.05max. . 0.050.20G0.010.202.54.0remainder . . . . . .
36、C50580E remainder . . . 0.050.200.05max. . 0.050.200.010.351.01.70.30max. . . . . .C50780E remainder . . . 0.050.200.05max. . 0.050.200.010.351.72.30.30max. . . . . .C50780E remainder . . . 0.050.200.05max. . 0.050.200.010.351.72.30.30max. . . . . .C51000E remainder . . . 0.10max0.05max. . . 0.030.3
37、54.25.80.30max. . . . . .C51000E remainder . . . 0.10max0.05max. . . 0.030.354.25.80.30max. . . . . .C51080E remainder . . . 0.050.200.05max. . 0.050.200.010.354.85.80.30max. . . . . .C51080E remainder . . . 0.050.200.05max. . 0.050.200.010.354.85.80.30max. . . . . .C51100E remainder . . . 0.10max0.
38、05max. . . 0.030.353.54.90.30max. . . . . .C51100E remainder . . . 0.10max0.05max. . . 0.030.353.54.90.30max. . . . . .C51180E remainder . . . 0.050.200.05max. . 0.050.200.010.353.54.90.30max. . . . . .C51980E remainder . . . 0.050.200.05max. . 0.050.200.010.355.57.00.30max. . . . . .C52100E remaind
39、er . . . 0.10max0.05max. . . 0.030.357.09.00.20max. . . . . .C52180E remainder . . . 0.050.200.05max. . 0.050.200.010.357.09.00.30max. . . . . .C52480E remainder . . . 0.050.200.05max. . 0.050.200.010.359.011.00.30max. . . . . .C63800E remainderD 2.5-3.1. 0.250.550.20max0.05max. 0.10max0.20max. . 0.
40、8max. . 1.52.1. . .B888/B888M174TABLE 1 ContinuedElements Composition, %CopperAlloyUNS No. CopperAlum-inumBeryll-ium Cobalt Iron LeadMagnesMagnes-iumiumManganMan-eseganese NickelPhosPhos-phorusphorus Tin ZincChromiumChro-miumZirconiumZirco-nium Silicon SilverTellur-ium OtherC64725E 95.0 minD . . . 0
41、.25 0.01 0.20 . 1.32.7G. 0.200.8 0.501.5 0.09 . 0.200.8. . 0.01CalciumC64725E 95.0 minD . . . 0.25 0.01 0.20 . 1.32.7G. 0.200.80.501.50.09 . 0.200.8. . 0.01CalciumC65400E remainderD . . . . 0.05max. . . . 1.21.90.50max0.010.12. 2.73.4. . .C65400E remainderD . . . . 0.05max. . . . 1.21.90.50max0.010.
42、12. 2.73.4. . .C68800E remainderD 3.0-3.8J. 0.250.550.20max0.05max. . . . . 21.324.1J. . . . . .C68800E remainderD 3.0-3.8J. 0.250.550.20max0.05max. . . . . 21.324.1J. . . . . .C70250E remainderD . . . 0.20max0.05max0.050.300.10max2.24.2G. . 1.0max. . 0.251.2. . .C70260E remainderD . . . . . . . 1.0
43、3.0G0.01max. . . . 0.200.7. . .C70265E remainderD . . . . 0.05max. . 1.03.0G0.01max0.050.80.30max. . 0.200.7. . .C70265E remainderD . . . . 0.05max. . 1.03.0G0.01max0.050.80.30max. . 0.200.7. . .C70310E remainderD . . . 0.10 0.05 0.01 . 1.04.0G0.05 1.0 2.0 . 0.0050.050.081.00.020.50. .C70310E remain
44、derD . . . 0.10 0.05 0.01 . 1.04.0G0.05 1.0 2.0 . 0.0050.050.081.00.020.50. .C70350E remainderD . . 1.02.00.20max0.05max0.04max0.20max1.02.5. . 1.0 max . . 0.501.2. . .C75200E 63.0-66.5D . . . 0.25max0.05max. 0.50max16.519.5G. . remainder . . . . . .C76200E 57.0-61.0D . . . 0.25max0.09max. 0.50max11
45、.013.5G. . remainder . . . . . .A Includes silver + tin + tellurium + selenium.B Tellurium or selenium, or both.C Copper + the sum of the named elements shall be 99.9 % min.D Copper value includes silver.E Copper + the sum of the named elements shall be 99.5 % min.F Nickel + cobalt, 0.20 % min; nick
46、el + iron +cobalt, 0.6 % max.G Includes cobalt.H Copper + the sum of the named elements shall be 99.8 % min.I Copper + the sum of the named elements shall be 99.7 % min.J Aluminum + zinc = 25.127.1.B888/B888M1757.2 ManufactureThe product shall be produced by either hot- or cold-working operation. It
47、 shall be finished, unless otherwisespecified, by such hot working, cold working, annealing, or heat treatment as may be necessary to meet the properties specifiedin Table 2.7.3 EdgesThe edges shall be slit or rolled edges as specified by the buyer. Slit edges shall be furnished unless otherwisespec
48、ified or agreed upon between the purchaser and supplier or manufacturer.8. Chemical Composition8.1 The materials shall conform to the chemical compositional requirements in Table 1 for the corresponding CopperAlloy UNSNumber designation specified in the ordering information.8.2 These composition lim
49、its do not preclude the presence of other elements. Limits for unnamed elements may be establishedand analysis required by agreement between manufacturer or supplier and purchaser when required.8.3 Copper, when given as the remainder, is determined as the difference between the sum of results for all elements determinedand 100 %.8.4 Zinc, when given as the remainder, is determined as the d
