1、Designation: B888 12B888/B888M 13Standard Specification forCopper Alloy Strip for Use in Manufacture of ElectricalConnectors or Spring Contacts1This standard is issued under the fixed designation B888;B888/B888M; the number immediately following the designation indicates theyear of original adoption
2、 or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. 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, C
4、40860, C42200, C42500, C42520, C42600, C50580, C50780, C51000, C51080, C51100, C51180,C51980, C52100, C52180, C52480, C63800, C64725, C65400, C68800, C70250, C70260, C70265, C70310, C75200, andC76200.1.2 The requirements for the other copper alloys such as copper-nickel-tin spinodal, UNS C72650, C72
5、700, 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 independently
6、 of the other. Combining values from thetwo systems may result in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:3B193 Test Method for Resistivity of Electrical Conductor MaterialsB248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Shee
7、t, 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-Nickel-Tin Spinodal Alloy StripB82
8、0 Test Method for Bend Test for Determining the Formability of Copper and Copper Alloy StripB846 Terminology for Copper and Copper AlloysE8E8/E8M Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Materials Metric (Withdrawn 2008)4E54 Test Methods
9、for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)4E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)4E75 Test Methods for Chemical Analysis of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
10、 Chemical Analysis of Copper AlloysE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)2.2 ISO Standards:5ISO 4744 Copper and CopperAlloysDetermination of Chromium ContentFlameAtomicAbsorption Spectrometric MethodISO 7602 Copper and Copper AlloysDetermination of Tellur
11、ium Content1 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, 2012Oct. 1, 2013. Published November 2012November 2013. Originally approved in 1998
12、. Last previous edition approved in 20102012as B888 10.B888 12. DOI: 10.1520/B0888-12.10.1520/B0888_B0888M-13.2 The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition of aprefix “c” and a suffix “00
13、.” 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 Standardsvolume information, refer to the standards Document Summary page
14、 on the ASTM website.4 The last approved version of this historical standard is referenced on www.astm.org.5 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.This document is not an ASTM standard and is intended only to pr
15、ovide the user of an ASTM standard an indication of what changes 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 th
16、e standard as published by ASTM is to be considered the official 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 States13. Terminology3.1 DefinitionsFor definition of
17、terms used in this specification, refer to Terminology B846.4. General Requirements4.1 For product furnished under this specification in English units, the following sections of Specification B248 must constitutea part of this specification. For product furnished under this specification in the SI u
18、nits, 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, Weights, 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 Spe
19、cimen 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 the event of a conflict between this specification and Specification B248 or B248M, the requirements of this specificationshall take pr
20、ecedence.5. Classification5.1 Product produced to this specification is classified as strip material to be used for spring contact or electrical and electronicconnector applications only.6. Ordering Information6.1 Contract or purchase orders for product under this specification should include the fo
21、llowing 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 Temper (Section 8).6.2 The following options are available under this specification and shall be specified in the contract or purchase ord
22、er 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 straightness tolerances, slit-metal tolerances, square-sheared metal tolerances, sawed metal tolerances,straightened or edge-rolled metal toler
23、ances (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 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 e
24、lectrical resistivity or any other physical and electrical properties (See Table X1.1).7. Materials and Manufacture7.1 MaterialThe material of manufacture shall be a cast bar, slab, cake, billet, or other form of the composition given in Table1 for the specified alloy, suitable for processing into t
25、he product prescribed in this specification.7.2 ManufactureThe product shall be produced by either hot- or cold-working operation. It shall be finished, unless otherwisespecified, by such hot working, cold working, annealing, or heat treatment as may be necessary to meet the properties specifiedin T
26、able 2.7.3 EdgesThe edges shall be slit or rolled edges as specified by the buyer. Slit edges shall be furnished unless otherwisespecified or agreed upon between the purchaser and supplier or manufacturer.B888/B888M 132TABLE 1 Chemical RequirementsElements Composition, %CopperAlloy UNSNo. CopperAlum
27、-inumBeryll-ium Cobalt Iron LeadMagnes-iumMangan-ese NickelPhos-phorus Tin Zinc Chromium Zirconium Silicon SilverTellur-ium OtherC14530 99.90Amin0.0010.0100.0030.0230.0030.023C15100B 99.80Cmin0.050.15C15500 99.75Cmin0.080.130.0400.0800.0270.10C17000D remainderC 0.20max1.601.790.20Emin0.20maxC17200D
28、remainderC 0.20max1.802.000.20Emin0.20maxC17410D remainderC 0.20max0.150.500.350.60.20max0.20maxC17450D remainderC 0.20max0.150.500.20max0.501.00.25max0.50 %max0.20maxC17460D remainderC 0.20max0.150.500.20max1.01.40.25max0.50 %max0.20maxC17500D remainderC 0.20max0.40.72.42.70.10max0.20maxC17510D rem
29、ainderC 0.20max0.20.60.3max0.10max1.42.20.20maxC19002D remainderC 0.10 0.05 0.01 1.41.7F 0.05 0.020.30 0.040.35 0.0050.050.200.350.020.50C19010D remainderC 0.81.80.010.050.150.35C19015G remainderC 0.020.15 0.502.4 0.020.20 0.10.40C19025H remainderC 0.10max0.81.20.030.070.71.10.20maxC19210G remainder
30、 0.050.150.0250.04C19400G 97.0 min 2.12.60.03max0.0150.150.050.20C19500G 96.0 min 0.02max0.301.31.02.00.02max0.010.350.101.00.20maxC19700G remainder 0.05max0.301.20.05max0.010.200.05max0.05max0.100.400.20max0.20maxC23000G 84.0-86.0 0.05max0.05maxremainderC26000H 68.5-71.5 0.05max0.07maxremainderC408
31、10H 94.5-96.5 0.080.120.05max0.110.200.0280.041.82.2remainderB888/B888M133TABLE 1 ContinuedElements Composition, %CopperAlloy UNSNo. CopperAlum-inumBeryll-ium Cobalt Iron LeadMagnes-iumMangan-ese NickelPhos-phorus Tin Zinc Chromium Zirconium Silicon SilverTellur-ium OtherC40850H 94.5-96.5 0.050.200.
32、05max0.050.200.010.202.64.0remainderC40860H 94.0-96.0 0.010.050.05max0.050.200.020.041.72.3remainderC42200H 86.0-89.0 0.05max0.05max0.35max0.81.4remainderC42500H 87.0-90.0 0.05max0.05max0.35max1.53.0remainderC42520H 88.0-91.0 0.050.200.05max0.050.200.010.201.53.0remainderC42600H 87.0-90.0C 0.050.200
33、.05max0.050.20F0.010.202.54.0remainderC50580D remainder 0.050.200.05max0.050.200.010.351.01.70.30maxC50780D remainder 0.050.200.05max0.050.200.010.351.72.30.30maxC51000D remainder 0.10max0.05max0.030.354.25.80.30maxC51080D remainder 0.050.200.05max0.050.200.010.354.85.80.30maxC51100D remainder 0.10m
34、ax0.05max0.030.353.54.90.30maxC51180D remainder 0.050.200.05max0.050.200.010.353.54.90.30maxC51980D remainder 0.050.200.05max0.050.200.010.355.57.00.30maxC52100D remainder 0.10max0.05max0.030.357.09.00.20maxC52180D remainder 0.050.200.05max0.050.200.010.357.09.00.30maxC52480D remainder 0.050.200.05m
35、ax0.050.200.010.359.011.00.30maxC63800D remainderC 2.5-3.10.250.550.20max0.05max0.10max0.20max0.8max1.52.1C64725D 95.0 minC 0.25 0.01 0.20 1.32.7F 0.200.8 0.501.5 0.09 0.200.80.01CalciumC65400D remainderC 0.05max1.21.90.50max0.010.122.73.4C68800D remainderC 3.0-3.8I0.250.550.20max0.05max21.324.1IC70
36、250D remainderC 0.20max0.05max0.050.300.10max2.24.2F1.0max0.251.2C70260D remainderC 1.03.0F0.01max0.200.7C70265D remainderC 0.05max1.03.0F 0.01max0.050.80.30max0.200.7C70310D remainderC 0.10 0.05 0.01 1.04.0F 0.05 1.0 2.0 0.0050.050.081.00.020.50B888/B888M134TABLE 1 ContinuedElements Composition, %C
37、opperAlloy UNSNo. CopperAlum-inumBeryll-ium Cobalt Iron LeadMagnes-iumMangan-ese NickelPhos-phorus Tin Zinc Chromium Zirconium Silicon SilverTellur-ium OtherC75200D 63.0-66.5C 0.25max0.05max0.50max16.519.5FremainderC76200D 57.0-61.0C 0.25max0.09max0.50max11.013.5FremainderTABLE 1 Chemical Requiremen
38、tsElements Composition, %CopperAlloy UNSNo. CopperAlum-inumBeryll-ium Cobalt Iron LeadMagnes-iumMangan-ese NickelPhos-phorus Tin Zinc Chromium Zirconium Silicon SilverTellur-ium OtherC14530 99.90Amin. . . . . . . . 0.0010.0100.0030.023. . . . . 0.0030.023B.C15100C 99.80Dmin. . . . . . . . . . . . 0.
39、050.15. . . .C15500 99.75Dmin. . . . . 0.080.13. . 0.0400.080. . . . . 0.0270.10. .C17000E remainderD 0.20max1.601.790.20Fmin. . . . . . . . . . 0.20max. . .C17200E remainderD 0.20max1.802.000.20Fmin. . . . . . . . . . 0.20max. . .C17410E remainderD 0.20max0.150.500.350.60.20max. . . . . . . . . 0.2
40、0max. . .C17450E remainderD 0.20max0.150.50. 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 0.20max0.20.60.3ma
41、x0.10max. . . 1.42.2. . . . . 0.20max. . .C19002E remainderD . . . 0.10 0.05 0.01 . 1.41.7G 0.05 0.020.30 0.040.35 . 0.0050.050.200.350.020.50. .C19010E remainderD . . . . . . . 0.81.80.010.05. . . . 0.150.35. . .C19015H remainderD . . . . . 0.020.15 . 0.502.4 0.020.20 . . . . 0.10.40. . .C19025I re
42、mainderD . . . 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. . . 0.0150.15. 0.050.20. . . . . .C19500H 96.0 min 0.02max. 0.301.31.02.00.02max. . . 0.010.350.101.00.20max. . . . . .B888/B888M135
43、TABLE 1 ContinuedElements Composition, %CopperAlloy UNSNo. CopperAlum-inumBeryll-ium Cobalt Iron LeadMagnes-iumMangan-ese NickelPhos-phorus Tin Zinc Chromium Zirconium Silicon SilverTellur-ium OtherC19700H remainder . . 0.05max0.301.20.05max0.010.200.05max0.05max0.100.400.20max0.20max. . . . . .C230
44、00H 84.0-86.0 . . . 0.05max0.05max. . . . . remainder . . . . . .C26000I 68.5-71.5 . . . 0.05max0.07max. . . . . remainder . . . . . .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 . .
45、. . . .C40860I 94.0-96.0 . . . 0.010.050.05max. . 0.050.200.020.041.72.3remainder . . . . . .C42200I 86.0-89.0 . . . 0.05max0.05max. . . 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. . 0.050.20
46、0.010.201.53.0remainder . . . . . .C42600I 87.0-90.0D . . . 0.050.200.05max. . 0.050.20G0.010.202.54.0remainder . . . . . .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. . . . . .C51000E rem
47、ainder . . . 0.10max0.05max. . . 0.030.354.25.80.30max. . . . . .C51080E remainder . . . 0.050.200.05max. . 0.050.200.010.354.85.80.30max. . . . . .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. .
48、. . . .C51980E remainder . . . 0.050.200.05max. . 0.050.200.010.355.57.00.30max. . . . . .C52100E remainder . . . 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. . 0.050.20
49、0.010.359.011.00.30max. . . . . .C63800E remainderD 2.5-3.1. 0.250.550.20max0.05max. 0.10max0.20max. . 0.8max. . 1.52.1. . .C64725E 95.0 minD . . . 0.25 0.01 0.20 . 1.32.7G . 0.200.8 0.501.5 0.09 . 0.200.8. . 0.01CalciumC65400E remainderD . . . . 0.05max. . . . 1.21.90.50max0.010.12. 2.73.4. . .B888/B888M136TABLE 1 ContinuedElem
