1、Designation: B371/B371M 08 (Reapproved 2013)Standard Specification forCopper-Zinc-Silicon Alloy Rod1This standard is issued under the fixed designation B371/B371M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last re
2、vision. 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 Department of Defense.1. Scope1.1 This specification establishes the requireme
3、nts forcopper-zinc-silicon alloy rod produced in Copper Alloy UNSNos. C69300, C69400, C69430, C69700, and C69710.1.1.1 If the purchaser does not specify the alloy to besupplied, product is permitted to be furnished in any of thealloys named in 1.1.1.2 UnitsThe values stated in either SI units or inc
4、h-pound units are to be regarded separately as standard. Thevalues stated in each system may not be exact equivalents;therefore, each system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the standard.1.3 The following safety hazard
5、caveat pertains only to thetest methods described in this specification. This standard doesnot purport to address all of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the app
6、licability of regulatory requirementsprior to use.1.4 WarningMercury has been designated by EPA andmany state agencies as a hazardous material that can causecentral nervous system, kidney, and liver damage. Mercury, orits vapor, may be hazardous to health and corrosive tomaterials. Caution should be
7、 taken when handling mercury andmercury-containing products. See the applicable product Ma-terial Safety Data Sheet (MSDS) for details and EPAs website(http:/www.epa.gov/mercury/faq.htm) for additional informa-tion. Users should be aware that selling mercury or mercury-containing products, or both,
8、in your state may be prohibited bystate law.2. Referenced Documents2.1 ASTM Standards:2B154 Test Method for Mercurous Nitrate Test for CopperAlloysB249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgingsB858 Test Method for Ammonia Vapor Test
9、for DeterminingSusceptibility to Stress Corrosion Cracking in CopperAlloysE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE54 Test Methods for Chemical Analysis of Special Brassesand Bronzes (Withdrawn 2002)3E62 Test Methods for Chemical Analysis of Copper andCopperAlloys (Photometric
10、Methods) (Withdrawn 2010)3E478 Test Methods for Chemical Analysis of Copper Alloys3. General Requirements3.1 The following sections of Specification B249/B249Mconstitutes a part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Workmanship, Finish, and Appearance,3.1.4 Sa
11、mpling,3.1.5 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,1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the
12、direct responsibility of Subcommittee B05.02 on Rod,Bar, Wire, Shapes and Forgings.Current edition approved Oct. 1, 2013. Published November 2013. Originallyapproved in 1961. Last previous edition approved in 2008 as B371/B371M 08.DOI: 10.1520/B0371_B0371M-08R13.2For referenced ASTM standards, visit
13、 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM
14、 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.12 Test Report,3.1.13 Packaging and Package Marking, and3.1.14 Supplementary Requirements.3.2 In addition, when a section with a title identical to thatreferenced in 3.1, above, appears in this sp
15、ecification, itcontains additional requirements which supplement those ap-pearing in Specification B249/B249M.4. Ordering Information4.1 Include the following information when placing ordersfor product under this specification, as applicable:4.1.1 ASTM designation and year of issue,4.1.2 Copper allo
16、y UNS No. designation,4.1.3 FormCross section such as round, hexagon, and soforth,4.1.4 Temper(Section 7),4.1.5 DimensionsDiameter or distance between parallelsurfaces, nominal specific or stock length,4.1.6 QuantityTotal weight, footage, or number of pieces,and4.1.7 If product is purchased for agen
17、cies of the U.S.government (see Supplementary Requirements section ofSpecification B249/B249M).4.2 The following options are available and should bespecified at the time of placing the order, when required:4.2.1 Residual Stress Test (Performance Requirementssection, Section 9),4.2.1.1 Ammonia Vapor
18、Test or Mercurous Nitrate Test,4.2.1.2 For the Ammonia Vapor Test, pH value other than10.4.2.2 Certification (Specification B249/B249M), and4.2.3 Mill test report (Specification B249/B249M).5. Material and Manufacture5.1 MaterialThe material of manufacture shall be castbillets, logs, or rods of Copp
19、er Alloy UNS Nos. C69300,C69400, C69430, C69700, or C69710 of such purity andsoundness to be suitable for processing into the productprescribed herein.5.2 ManufactureThe product shall be manufactured byhot extrusion and finished by such cold working, annealing,straightening, and cutting to length as
20、 may be necessary tomeet the properties specified.6. Chemical Composition6.1 The material shall conform to the chemical composi-tional requirements specified in Table 1 for the Copper AlloyUNS No. designation specified in the ordering information.6.1.1 These compositional limits do not preclude the
21、pres-ence of other elements. By agreement between the manufac-turer and the purchaser, limits may be established and analysisrequired for unnamed elements.6.2 For alloys in which zinc is listed as “remainder,” eithercopper or zinc may be taken as the difference between the sumof results of all other
22、 elements determined and 100 %.6.3 When all elements in Table 1 are determined, the sum ofresults shall be 99.5 % min.7. Temper7.1 The standard temper for products under this specifica-tion is H02 (Half Hard) for UNS No. C69300 and H04 (Hard)for UNS Nos. C69400, C69430, C69700, and C69710.8. Mechani
23、cal Property Requirements8.1 Tensile Strength RequirementsProduct furnished un-der this specification shall conform to the tensile requirementsprescribed in Table 2 when tested in accordance with TestMethods E8/E8M.9. Performance Requirements9.1 Residual Stress Test:9.1.1 When specified in the contr
24、act or purchase order, theproduct shall be tested for residual stress according to therequirements of Test Method B154 or Test Method B858, andshow no signs of cracking. (WarningMercury is a definitehealth hazard. With the Mercurous Nitrate Test, equipment forthe detection and removal of mercury vap
25、or produced involatilization and the use of protective gloves is recom-mended.)TABLE 1 Chemical RequirementsElementComposition, %Copper Alloy UNS No.C69300 C69400 C69430 C69700 C69710min max min max min max min max min maxCopperA73.0 77.0 80.0 83.0 80.0 83.0 75.0 80.0 75.0 80.0Silicon 2.7 3.4 3.5 4.
26、5 3.5 4.5 2.5 3.5 2.5 3.5Lead . 0.09 . 0.30 . 0.30 0.50 1.5 0.50 1.5Iron . 0.10 . 0.20 . 0.20 . 0.20 . 0.20Tin . 0.20 . . . . . . . .Nickel . 0.10 . . . . . . . .Manganese . 0.10 . . . . . 0.40 . 0.40Arsenic . . . . 0.03 0.06 . . 0.03 0.06Antimony . . . . . . . . . .Phosphorus 0.04 0.15 . . . . . .
27、. .Zinc remainder remainder remainder remainder remainderAIncludes Silver.B371/B371M 08 (2013)29.1.2 When the Ammonia Vapor Test is used, the test pHvalue appropriate for the intended application shall be 10unless otherwise specified by the purchaser.NOTE 1Aresidual stress test provides information
28、about the adequacyof the stress relief of the material. Bar straightening is a method ofmechanical stress relief. Stress relief annealing is a method of thermalstress relief.10. Other Requirements10.1 Purchases for the U.S. GovernmentProduct pur-chased for agencies of the U.S. government shall confo
29、rm tothe additional requirements prescribed in the SupplementaryRequirements section of Specification B249/B249M.11. Dimensions and Permissible Variations11.1 The dimensions and tolerances for product describedby this specification shall be as specified in SpecificationB249/B249M with particular ref
30、erence to the following tablesand related paragraphs:11.1.1 Diameter or Distance Between Parallel SurfacesRefer to Table 2, Tolerances for Diameter of Cold-Drawn Rod.11.1.2 LengthRefer to Table 13, Length Tolerances forRod, Bar, and Shapes, and Table 15, Schedule of Lengths withEnds for Rod and Bar.
31、11.1.3 StraightnessRefer to Table 16, Straightness Toler-ances for Rod, Bar, and Shapes, For General Use section.11.1.4 Edge ContoursRefer to Edge Contours section.12. Test Methods12.1 Chemical composition, in case of disagreement, shallbe determined as follows:Element ASTM Test MethodsAntimony E62A
32、rsenic E62Copper E478Iron E478Lead E478, atomic absorptionManganese E62Phosphorous E62Silicon E54Zinc E478, Titrametric12.2 Test method(s) to be followed for the determination ofelement(s) resulting from contractual or purchase order agree-ment shall be as agreed upon between the manufacturer orsupp
33、lier and the purchaser.13. Keywords13.1 copper-zinc-silicon rod; UNS No. C69300; UNS No.C69400; UNS No. C69430; UNS No. C69700; UNS No.C69710ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this
34、 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 responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five year
35、s andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committ
36、ee, 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 the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428
37、-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 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the stan
38、dard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 2 Tensile RequirementsTemper & UNS No. Tensile Strength, minYield Strength at 0.5 %Extension Under Load, minElongation in 4Diameter or Thick-ness of Specimen,min,%ADiameter or Distance BetweenParallel Surfacesksi MPa ksi
39、MPain. mmTemper H02 Half HardCopper Alloy UNS No. C69300Up to12, incl Up to 12, incl 85 585 45 310 5Over12 up to 1, incl Over 12 to 25, incl 75 515 35 240 10Over 1 to 2, incl Over 25 to 50, incl 70 480 30 205 10Temper H04 HardCopper Alloy UNS Nos. C69400, C69430:Up to 1, incl Up to 25, incl 80 550 40 250 15Over 1 to 2, incl Over 25 to 50, incl 75 515 35 240 15Over 2 Over 50 65 450 35 240 15Copper Alloy UNS Nos. C69700, C69710:Up to 1, incl Up to 25, incl 65 450 32 220 20Over 1 Over 25 55 380 28 195 25AIn any case, a minimum gauge length of 1 in. 25 mm shall be used.B371/B371M 08 (2013)3
