1、Designation: B929 05 (Reapproved 2011)1Standard Specification forCopper-Nickel-Tin Spinodal Alloy Rod and Bar1This standard is issued under the fixed designation B929; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEEditorial corrections made throughout in March 2011.1. Scope1.1 This specification establishes the requirements forcopper-nickel
3、tin alloy rod and bar. The following alloy isincluded:Copper AlloyUNS No.Nominal Composition, Weight %Copper Nickel TinC72900 77 15 81.2 UnitsThe values stated in inch-pound units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI units that are provide
4、d forinformation only and are not considered standard.1.3 The following safety hazard caveat pertains only to thetest method(s) described in this specification.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the use
5、r of this standard to establish appro-priate safety and health practices and to determine theapplicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgin
6、gsB846 Terminology for Copper and Copper AlloysE8/E8M Test Methods for Tension Testing of MetallicMaterialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE75 Test Methods for Chemical Analysis of Copper-Nickela
7、nd Copper-Nickel-Zinc Alloys3E478 Test Methods for ChemicalAnalysis of CopperAlloys3. General Requirements3.1 The following sections of Specification B249/B249Mconstitute a part of this specification:3.1.1 Dimensions, Mass and Permissible Variations,3.1.2 Number of Tests and Retests,3.1.3 Specimen P
8、reparation,3.1.4 Significance of Numerical Limits,3.1.5 Inspection,3.1.6 Rejection and Rehearing,3.1.7 Certification,3.1.8 Packaging and Package Marking, and3.1.9 Supplementary Requirements.3.2 In addition, when a section with a title identical to thatreferenced in 3.1 above appears in this specific
9、ation, it containsadditional requirements which supplement those appearing inSpecification B249/B249M.4. Terminology4.1 DefinitionsFor definitions of terms related to copperand copper alloys, refer to Terminology B846.5. Ordering Information5.1 Include the following information when placing ordersfo
10、r product under this specification, as applicable:5.1.1 ASTM designation and year of issue,5.1.2 Copper Alloy UNS No. C72900,5.1.3 Temper (Section 8),5.1.4 Dimensionsdiameter or distance between parallelsurfaces, width, thickness, and length,5.1.5 How furnishedstock lengths or specific lengths,with
11、or without ends, and5.1.6 Quantitytotal weight or total length or number ofpieces of each size.5.1.7 If product is purchased for agencies of the U.S.government (see the Supplementary Requirements section ofB249/B249M for additional requirements, if specified).1This specification is under the jurisdi
12、ction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,Bar, Wire, Shapes and Forgings.Current edition approved June 1, 2005. Published March 2011. Originallyapproved in 2005. Last previous edition approved in 2005 as B929 05. DOI:10.1520/
13、B0929-05 (2011).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.3Withdrawn. The last approved version of this
14、 historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 The following options are available and should bespecified at the time of placing of the order when required:5.2.1 Type of edge on
15、bar (square corners, rounded corners,rounded edge, full-rounded edge),5.2.2 Certification (see Specification B249/B249M), and5.2.3 Mill Test Report (see Specification B249/B249M).6. Materials and Manufacture6.1 Materials:6.1.1 The material of manufacture shall be a form of CopperAlloy UNS No. C72900
16、 of such purity and soundness as to besuitable for processing in to the products prescribed herein.6.1.2 In the event heat identification or traceability isrequired, the purchaser shall specify the details desired.NOTE 1Due to the discontinuous nature of the processing of castingsinto wrought produ
17、cts, it is not always practical to identify a specificcasting analysis with a specific quantity of finished material.6.2 Manufacture:6.2.1 The product shall be manufactured by such hot work-ing, cold working, and annealing processes as to produce auniform wrought structure in the finished product.6.
18、2.2 The product shall be hot or cold worked to the finishedsize, and subsequently annealed when required, to meet thetemper properties specified.7. Chemical Composition7.1 The material shall conform to the chemical compositionrequirements in Table 1 for the Copper Alloy UNS No.C72900.7.1.1 Results o
19、f analysis on a product (check) sample shallconform to the composition requirements within the permittedanalytical variance specified in Table 1.7.2 These composition limits do not preclude the presenceof other elements. By agreement between the manufacturer andpurchaser, limits may be established a
20、nd analysis required forunnamed elements.7.3 Copper is listed as “remainder.” Copper is the differencebetween the sum of results of all elements determined and100 %. When all elements in Table 1 are determined, the sumof results shall be 99.7 % minimum.8. Temper8.1 The standard tempers for products
21、described in thisspecification are given in Table 2.8.1.1 TX 00Spinodal Hardened (AT).9. Mechanical Property Requirements9.1 Tensile Strength Requirements:9.1.1 Product furnished under this specification shall con-form to the tensile requirements prescribed in Table 2, whentested in accordance with
22、Test Methods E8/E8M.9.1.2 Acceptance or rejection based upon mechanical prop-erties shall depend only on tensile strength.9.2 Rockwell Hardness RequirementThe approximateRockwell hardness values given in Table 2 are for generalinformation and assistance in testing and shall not be used as abasis for
23、 product rejection.NOTE 2The Rockwell hardness test offers a quick and convenientmethod of checking for general conformity to the specification require-ments for temper, tensile strength, and grain size.10. Dimensions, Mass, and Permissible Variation10.1 The dimensions and tolerances for product des
24、cribedby this specification shall be as specified in SpecificationB249/B249M with particular reference to the following tablesand related paragraphs:10.2 Diameter or Distance Between Parallel Surfaces:10.2.1 Rod: Round, Hexagonal, OctagonalRefer toTable 5.10.3 Width and Thickness:10.3.1 BarRectangul
25、ar and SquareRefer to Tables 9and 11.10.4 LengthRod and BarRefer to Tables 13 and 15.10.5 StraightnessRod and BarRefer to Table 16, Gen-eral Use section.10.6 Edge ContoursRefer to section 6.5, Edge Contours.11. Workmanship, Finish and Appearance11.1 The product shall be free of defects, but blemishe
26、s of anature that do not interfere with the intended application areacceptable.12. Sampling12.1 Sampling shall be in accordance with SpecificationB249/B249M, except that the heat size is defined as 12 000 lb(5455 kg) or fraction thereof.12.2 Sample pieces shall be taken from a heat and lot ofmateria
27、l processed simultaneously in the same equipment, asfollows:12.3 HeatA heat shall be the result of castings pouredsimultaneously from the same source of molten metal.12.4 LotA lot shall be a heat or fraction thereof.13. Number of Tests and Retests13.1 Section 9 of Specification B249/B249M constitute
28、s apart of this specification.13.2 If any heat treat batch of material fails to conform tothe requirements of this specification, new samples of materialmay be resubmitted for testing. Only two such retests shall bepermitted.TABLE 1 Chemical CompositionAComposition, %Copper AlloyUNS No.PreviousDesig
29、nationCopper (includingsilver)Iron, max Zinc, max Nickel, incl.CobaltTin Manganese, max Niobium, max Magnesium, maxC72900 Cu-15Ni-8Sn Remainder 0.50 0.50 14.515.5 7.58.5 0.30 0.10 0.15ALead 0.02 (0.005 maximum for hot rolling).B929 05 (2011)1214. Specimen Preparation14.1 Section 10 of Specification
30、B249/B249M constitutes apart of this specification.14.2 Tension test specimens shall be prepared in a fullcross-section area if practicable and in the direction of finalworking unless otherwise specified. Full cross section ormachined specimens shall be as specified in Test Method 8.15. Test Methods
31、15.1 Chemical Analyses:15.1.1 In cases of disagreement, determine the compositionusing the following methods:Element MethodCopper E53Iron E53Zinc E478Nickel E478Tin E478Manganese E7515.1.2 Test method(s) to be followed for the determinationof element(s) resulting from contractual or purchase orderag
32、reement shall be as agreed upon between the manufacturer orsupplier and purchaser.15.2 Other TestsThe product furnished shall conform tospecified requirements when subjected to test in accordancewith the following table:Test MethodTensile Strength E8/E8MTest MethodHardness E1816. Significance of Num
33、erical Limits16.1 See Specification B249/B249M for this part of thisspecification.17. Inspection17.1 See Specification B249/B249M for this part of thisspecification.18. Rejection and Rehearing18.1 See Specification B249/B249M for this part of thisspecification.19. Certification19.1 See Specification
34、 B249/B249M for this part of thisspecification.20. Test Report20.1 When specified in the contract or purchase order, areport of test results shall be furnished.21. Packaging and Package Marking21.1 See Specification B249/B249M for this part of thisspecification.22. Keywords22.1 bar; Copper Alloy UNS
35、 No. C72900; rodASTM International 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
36、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 years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for ad
37、ditional standardsand should be 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
38、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 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at t
39、he 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 standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 2 Mechanical Property RequirementsATemperDesignationTensile Strength,ksiYield Strength,(0.2% offset)Elongationin4xDB,%HardnessHRCTX00 4 in., 110135 90115 15 min 23 minTX00 4 in. and over11013590115 12 min 23 minAThe upper limits in the tensile strength and yield strength columns are for design guidance only.B4XD=4XdiameterB929 05 (2011)13
