1、Designation: B 563 01 (Reapproved 2006)Standard Specification forPalladium-Silver-Copper Electrical Contact Alloy1This standard is issued under the fixed designation B 563; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year o
2、f last revision. A number in parentheses indicates the year of last reapproval. Asuperscript 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. Scope1.1 This specification covers an alloy
3、 containing palladium,silver, copper, platinum, and nickel in the form of wire, rod,and strip for electrical contacts.1.2 The values stated in inch-pound units are to be regardedas the standard. The SI units given in parentheses are forinformation only.1.3 The following precautionary statement perta
4、ins to thetest method portion only, Section 7, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to become familiar with all hazards includingthose identified in the appropr
5、iate Material Safety Data Sheet(MSDS) for this product/material as provided by the manufac-turer, to establish appropriate safety and health practices, anddetermine the applicability of regulatory limitations prior touse.2. Referenced Documents2.1 ASTM Standards:2B 476 Specification for General Requ
6、irements for WroughtPrecious Metal Electrical Contact MaterialsE8 Test Methods for Tension Testing of Metallic MaterialsE 384 Test Method for Microindentation Hardness of Ma-terials3. Materials and Manufacture3.1 Raw materials shall be of such quality and purity thatthe finished product will have th
7、e properties and characteristicsprescribed in this specification.3.2 The material shall be finished by such operations (coldworking, heat treating, annealing, turning, grinding, pickling)and are required to produce the prescribed properties.4. Chemical Composition4.1 Material produced under this spe
8、cification shall meet therequirements of chemical composition shown in Table 1.5. Mechanical Properties5.1 The contract or order may specify ultimate tensilestrength, elongation, microhardness (Knoop or Vickers), hard-ness (Rockwell or Rockwell Superficial), or a combination ofthese mechanical prope
9、rties as temper criterion. If the contractor order does not specify a temper criterion, then the criterionfor temper designation will be ultimate tensile strength andelongation.5.2 The material shall conform to the mechanical propertiesshown in Table 2, Table 3,orTable 4.6. General Requirements Gene
10、ral Requirements6.1 Specification B 476 shall apply to all materials producedto this specification.7. Test Methods7.1 Test methods are in accordance with SpecificationB 476.7.2 All tension tests are in accordance with Test MethodsE8 and tensile specimens are full cross-section size whenpractical. El
11、ongation measurements should be based ona2in.(50 mm) gage length.7.3 Hardness is in accordance with Test Method E 384. Testmaterial 0.005 in. (0.13 mm) in thickness (diameter) and largerusing a 100 g indenter load. Test material less than 0.005 in. inthickness (diameter) using a 50 g indenter load.
12、Make aminimum of five hardness indentations on each specimen.Make all indentations so that the long axis of the Knoopindenter is parallel to the rolling or drawing direction of thematerial.7.4 Perform chemical analysis by spectrochemical or wetanalysis methods.1This specification is under the jurisd
13、iction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.05 on Precious Metals And Electrical Contact Materials.Current edition approved June 1, 2006. Published June 2006. Originallyapproved in 1972. Last previous edition approved in 2001 as B 5
14、63 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, P
15、O Box C700, West Conshohocken, PA 19428-2959, United States.7.5 Conduct all tests at room temperature (65 to 85F), (18to 29C).8. Inspection and Testing8.1 Material furnished under this specification shall beinspected and tested by the manufacturer as follows:8.1.1 Visual inspection at 103 magnificat
16、ion,8.1.2 Tension or hardness tests, or both, for temper verifi-cation,8.1.3 Dimensional inspection, and8.1.4 Chemical analysis when indicated by the purchaseorder.9. Keywords9.1 contacts; electrical contacts; low contact resistance; lowenergy contact; non arcing contact; palladium alloy;palladium-s
17、ilver-copperAPPENDIX(Nonmandatory Information)X1. REFERENCE PROPERTIES FOR PALLADIUM ELECTRICAL CONTACT MATERIALX1.1 Table X1.1 contains a list of typical property valueswhich are useful for engineering calculations in electricalcontact design and application.TABLE 1 Chemical RequirementsElementComp
18、osition,weight %Palladium 43.045.0Silver 37.039.0Copper 15.516.5Platinum 0.81.2Nickel 0.81.2Total noble metal impurities 0.2 maxTotal base metal impurities 0.2 maxTABLE 2 Mechanical Requirements for Wire 0.003 to 0.020 in.(0.13 to 0.51 mm) DiameterAProperty UnitsTemperAgeHardenedSolutionAnnealedStre
19、ssRelievedTensile strength ksiMPa100120689827135165930113716021010341344Elongation percent 20 min 8 min 110Hardness, Knoop HK100B170250 260330 320380Hardness, Vickers HV100B170240 240330 290370ASee 7.1.BSee 7.3.TABLE 3 Mechanical Requirements for Wire Over 0.020 to 0.060in. (0.51 to 1.52 mm) Diamete
20、rAProperty UnitsTemperSolutionAnnealedAgeHardenedTensile strength ksiMPa10012068982716021010001310Elongation percent 15 min 110Hardness, Knoop HK100B170250 340400Hardness, Vickers HV100B170240 310390ASee 7.1.BSee 7.3.TABLE 4 Mechanical Requirements for Strip 0.003 to 0.015 in.(0.076 to 0.38 mm) Thic
21、kAProperty UnitsTemperAgeHardenedSolutionAnnealedStressRelievedTensile strength ksiMPa100120689827140170965117115019510341344Elongation percent 15 min 8 min 113Hardness, Knoop HK100B170250 260330 320380Hardness, Vickers HV100B170240 250320 290370ASee 7.1.BSee 7.3.B 563 01 (2006)2ASTM International t
22、akes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own
23、responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addr
24、essed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at
25、the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (
26、phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE X1.1 Physical PropertiesSolution AnnealedAStress RelievedAAge HardenedResistivity:Vcmil/ft 185 180 155Vcm 30.7 29.9 25.8Density, g/cm310.8 10.8 10.8Solidus temperature, C 1032 1032 1032Linear coe
27、fficient of thermal expansion, C (23 to 100C) 13.5 3 10613.5 3 10613.5 3 106Thermal emf versus platinum (0100C), V/C 18 . 23Softening voltage, mV . . 200Melting voltage, mV . . 390Fatigue strength (rotating-bending) at 10 stress reversals:ksiMPaModulus of elasticity in tension:45310ksiMPa16 3 103110
28、 3 10316 3 103110 3 10316 3 103110 3 103AMaterial in the solution-annealed and stress-relieved tempers may be age hardened by subjecting it to an elevated temperature for a specified period of time.Temperatures ranging from 800 to 1000F (430 to 540C) at times from 10 to 45 min (the lower temperatures require the longer times) are ordinarily useful. When agehardening is to be done by other than the material manufacturer, the manufacturer should be consulted for the time-temperature treatment most suitable for the purchasersapplication.B 563 01 (2006)3
