1、Designation: B 929 05Standard Specification forCopper-Nickel-Tin Spinodal Alloy Rod and Bar1This standard is issued under the fixed designation B 929; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A num
2、ber in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification establishes the requirements forcopper-nickel-tin alloy rod and bar. The following alloy isincluded:Copper AlloyUNS No
3、.Nominal Composition, Weight %Copper Nickel TinC72900 77 15 81.2 The following safety hazard caveat pertains only to thetest method(s) described in this specification.1.3 UnitsThe values stated in inch-pound units are to beregarded as standard. The values given in parentheses aremathematical convers
4、ions to SI units that are provided forinformation only and are not considered standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices
5、and to determine theapplicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B 249/B 249 M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes, andForgingsB 846 Terminology for Copper and Copper AlloysE8 Test Methods for T
6、ension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Mate-rials MetricE18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic MaterialsE53 Test Methods for Determination of Copper in Unal-loyed Copper by GravimetryE75 Test Methods for Chemi
7、cal Analysis of Copper-Nickeland Copper-Nickel-Zinc AlloysE 478 Test Methods for Chemical Analysis of CopperAlloys3. General Requirements3.1 The following sections of Specification B 249/B 249Mconstitute a part of this specification:3.1.1 Dimensions, Mass and Permissible Variations,3.1.2 Number of T
8、ests and Retests,3.1.3 Specimen Preparation,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
9、.1 above appears in this specification, it containsadditional requirements which supplement those appearing inSpecification B 249/B 249M.4. Terminology4.1 DefinitionsFor definitions of terms related to copperand copper alloys, refer to Terminology B 846.5. Ordering Information5.1 Include the followi
10、ng information when placing ordersfor 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 furnishedsto
11、ck lengths or specific lengths,with 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 ofB 249/B 249M for additional requirements, if specified).5.
12、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 bar (square corners, rounded corners,rounded edge, full-rounded edge),1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and
13、 is the direct responsibility of Subcommittee B05.02 on Rod,Bar, Wire, Shapes, and Forgings.Current edition approved June 1, 2005. Published June 2005.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStan
14、dards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2.2 Certification (see Specification B 249/B 249M), and5.2.3 Mill Test Report (see Specificat
15、ion B 249/B 249M).6. Materials and Manufacture6.1 Materials:6.1.1 The material of manufacture shall be a form of CopperAlloy UNS No. C72900, 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 isrequ
16、ired, the purchaser shall specify the details desired.NOTE 1Due to the discontinuous nature of the processing of castingsinto wrought products, 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 m
17、anufactured by such hot work-ing, cold working, and annealing processes as to produce auniform wrought structure in the finished product.6.2.2 The product shall be hot or cold worked to the finishedsize, and subsequently annealed when required, to meet thetemper properties specified.7. Chemical Comp
18、osition7.1 The material shall conform to the chemical compositionrequirements in Table 1 for the Copper Alloy UNS No.C72900.7.1.1 Results of analysis on a product (check) sample shallconform to the composition requirements within the permittedanalytical variance specified in Table 1.7.2 These compos
19、ition limits do not preclude the presenceof other elements. By agreement between the manufacturer andpurchaser, limits may be established and analysis required forunnamed elements.7.3 Copper is listed as “remainder.” Copper is the differencebetween the sum of results of all elements determined and10
20、0 %. When all elements in Table 1 are determined, the sumof results shall be 99.7 % minimum.8. Temper8.1 The standard tempers for products 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
21、Product furnished under this specification shall con-form to the tensile requirements prescribed in Table 2, whentested in accordance with Test Methods E8or E8M.9.1.2 Acceptance or rejection based upon mechanical prop-erties shall depend only on tensile strength.9.2 Rockwell Hardness RequirementThe
22、approximateRockwell hardness values given in Table 2 are for generalinformation and assistance in testing and shall not be used as abasis for product rejection.NOTE 2The Rockwell hardness test offers a quick and convenientmethod of checking for general conformity to the specification require-ments f
23、or temper, tensile strength, and grain size.10. Dimensions, Mass, and Permissible Variation10.1 The dimensions and tolerances for product describedby this specification shall be as specified in SpecificationB 249/B 249M with particular reference to the following tablesand related paragraphs:10.2 Dia
24、meter or Distance Between Parallel Surfaces:10.2.1 Rod: Round, Hexagonal, OctagonalRefer toTable 5.10.3 Width and Thickness:10.3.1 BarRectangular 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
25、 Edge ContoursRefer to section 6.5, Edge Contours.11. Workmanship, Finish and Appearance11.1 The product shall be free of defects, but blemishes of anature that do not interfere with the intended application areacceptable.12. Sampling12.1 Sampling shall be in accordance with SpecificationB 249/B 249
26、M, 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 ofmaterial processed simultaneously in the same equipment, asfollows:12.3 HeatA heat shall be the result of castings pouredsimultaneously from the same source of mo
27、lten metal.12.4 LotA lot shall be a heat or fraction thereof.13. Number of Tests and Retests13.1 Section 9 of Specification B 249/B 249M constitutes apart of this specification.13.2 If any heat treat batch of material fails to conform tothe requirements of this specification, new samples of material
28、may be resubmitted for testing. Only two such retests shall bepermitted.14. Specimen Preparation14.1 Section 10 of Specification B 249/B 249M constitutesa part of this specification.TABLE 1 Chemical CompositionAComposition, %Copper AlloyUNS No.PreviousDesignationCopper (includingsilver)Iron, max Zin
29、c, 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).B92905214.2 Tension test specimens shall be prepared in a fullcross-section area if practicable and in the direction
30、 of finalworking unless otherwise specified. Full cross section ormachined specimens shall be as specified in Test Method 8.15. Test Methods15.1 Chemical Analyses:15.1.1 In cases of disagreement, determine the compositionusing the following methods:Element MethodCopper E53Iron E53Zinc E 478Nickel E
31、478Tin E 478Manganese E7515.1.2 Test method(s) to be followed for the determinationof element(s) resulting from contractual or purchase orderagreement shall be as agreed upon between the manufacturer orsupplier and purchaser.15.2 Other TestsThe product furnished shall conform tospecified requirement
32、s when subjected to test in accordancewith the following table:Test MethodTensile Strength E8Hardness E1816. Significance of Numerical Limits16.1 See Specification B 249/B 249M for this part of thisspecification.17. Inspection17.1 See Specification B 249/B 249M for this part of thisspecification.18.
33、 Rejection and Rehearing18.1 See Specification B 249/B 249M for this part of thisspecification.19. Certification19.1 See Specification B 249/B 249M 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.
34、Packaging and Package Marking21.1 See Specification B 249/B 249M for this part of thisspecification.22. Keywords22.1 bar; Copper Alloy UNS No. C72900; rodASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard.
35、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 responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed ev
36、ery 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 addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible tech
37、nical 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 the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohoc
38、ken, 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 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 2 Mechanical Property
39、 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=4XdiameterB929053
