1、Designation: B 371/B 371M 06Standard Specification forCopper-Zinc-Silicon Alloy Rod1This standard is issued under the fixed designation B 371/B 371M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A numb
2、er in parentheses indicates the year of last reapproval.A superscript 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. Scope*1.1 This specification establishes the requirements forcoppe
3、r-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 UnitsValues stated in either inch-pound units or SIunits are
4、 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 systems may result in nonconformance with thestandard.1.3
5、 The following safety hazard 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 p
6、racticesand determine the applicability of regulatory requirementsprior to use. (WarningMercury is a definite health hazard inuse and disposal.)2. Referenced Documents2.1 ASTM Standards:2B 154 Test Method for Mercurous Nitrate Test for CopperAlloysB 249/B 249M Specification for General Requirements
7、forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgingsB 858 Test Method for Ammonia Vapor Test for Determin-ing Susceptibility to Stress Corrosion Cracking in CopperAlloysE8 Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Mate-rials Met
8、ricE54 Test Methods for Chemical Analysis of SpecialBrasses and Bronzes3E62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E 478 Test Methods for Chemical Analysis of CopperAlloys3. General Requirements3.1 The following sections of Specification B 249/B 249Mconsti
9、tutes 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 Sampling,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 R
10、ehearing,3.1.11 Certification,3.1.12 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 specification, itcontains additional requirements which supplement those
11、 ap-pearing in Specification B 249/B 249M.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 alloy UNS No. designation,4.1.3 FormCross section such as round, hexagon
12、, and soforth,4.1.4 Temper(Section 7),4.1.5 DimensionsDiameter or distance between parallelsurfaces, nominal specific or stock length,1This 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
13、, Shapes, and Forgings.Current edition approved Oct. 1, 2006. Published October 2006. Originallyapproved in 1961. Last previous edition approved in 2005 as B 371/B 371M 05.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For An
14、nual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United Stat
15、es.4.1.6 QuantityTotal weight, footage, or number of pieces,and4.1.7 If product is purchased for agencies of the U.S.government (see Supplementary Requirements section ofSpecification B 249/B 249M).4.2 The following options are available and should bespecified at the time of placing the order, when
16、required:4.2.1 Residual Stress Test (Performance Requirements sec-tion, Section 9),4.2.1.1 Ammonia Vapor Test or Mercurous Nitrate Test,4.2.1.2 For the Ammonia Vapor Test, pH value other than10.4.2.2 Certification (Specification B 249/B 249M), and4.2.3 Mill test report (Specification B 249/B 249M).5
17、. Material and Manufacture5.1 MaterialThe material of manufacture shall be castbillets, logs, or rods of Copper 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 manu
18、factured byhot extrusion and finished by such cold working, annealing,straightening, and cutting to length as 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 AlloyUN
19、S No. designation specified in the ordering information.6.1.1 These compositional limits do not preclude the 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 list
20、ed as “remainder,” eithercopper or zinc may be taken as the difference between the sumof results of all other 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 i
21、s H02 (Half Hard) for UNS No. C69300 and H04 (Hard)for UNS Nos. C69400, C69430, C69700, and C69710.8. Mechanical Property Requirements8.1 Tensile Strength RequirementsProduct furnished un-der this specification shall conform to the tensile requirementsprescribed in Table 2 when tested in accordance
22、with TestMethods E8or E8M.9. Performance Requirements9.1 Residual Stress Test:9.1.1 When specified in the contract or purchase order, theproduct shall be tested for residual stress according to therequirements of Test Method B 154 or Test Method B 858, andshow no signs of cracking. (WarningMercury i
23、s a definitehealth hazard. With the Mercurous Nitrate Test, equipment forthe detection and removal of mercury vapor produced involatilization and the use of protective gloves is recom-mended.)9.1.2 When the Ammonia Vapor Test is used, the test pHvalue appropriate for the intended application shall b
24、e 10unless otherwise specified by the purchaser.NOTE 1Aresidual stress test provides information 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 Pu
25、rchases for the U.S. GovernmentProduct pur-chased for agencies of the U.S. government shall conform tothe additional requirements prescribed in the SupplementaryRequirements section of Specification B 249/B 249M.11. Dimensions and Permissible Variations11.1 The dimensions and tolerances for product
26、describedby this specification shall be as specified in SpecificationB 249/B 249M with particular reference 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.TABLE 1 Chemical RequirementsElem
27、entComposition, %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 4.5 3.5 4.5 2.5 3.5 2.5 3.5Lead . 0.10 . 0.30 . 0.30 0.50 1.5 0.50 1.5Iron . 0.10 . 0.20 . 0.20 . 0.20 . 0.20Tin .
28、 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 . . . . . . . .Zinc remainder remainder remainder remainder remainderAIncludes Silver.B 371/B 371M 06211.1.2 LengthRefer to
29、Table 13, Length Tolerances forRod, Bar, and Shapes, and Table 15, Schedule of Lengths withEnds for Rod and Bar.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 Che
30、mical composition, in case of disagreement, shallbe determined as follows:Element ASTM Test MethodsAntimony E62Arsenic E62Copper E 478Iron E 478Lead E 478, atomic absorptionManganese E62Phosphorous E62Silicon E54Zinc E 478, Titrametric12.2 Test method(s) to be followed for the determination ofelemen
31、t(s) resulting from contractual or purchase order agree-ment shall be as agreed upon between the manufacturer orsupplier and the purchaser.13. Keywords13.1 copper-zinc-silicon rod; UNS No. C69300; UNS No.C69400; UNS No. C69430; UNS No. C69700; UNS No.C69710SUMMARY OF CHANGESCommittee B05 has identif
32、ied the location of selected changes to this standard since the last issue(B 371/B 371M 05) that may impact the use of this standard. (Approved Oct. 1, 2006.)(1) The Ammonia Vapor Test was added as an optionalresidual stress test.(2) Text was revised to conform to B05 Outline of Form.ASTM Internatio
33、nal takes 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
34、 own 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
35、 addressed 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
36、, at 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 610-832-9
37、585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 2 Tensile RequirementsTemper & UNS No. Tensile Strength, minYield Strength at 0.5 %Extension Under Load, minElongation in 43Diameter or Thick-ness of Specimen,min,%ADiameter or Distance Betw
38、eenParallel Surfacesksi MPa ksi 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 t
39、o 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.B 371/B 371M 063
