1、Designation: B196/B196M 07 (Reapproved 2013)Standard Specification forCopper-Beryllium Alloy Rod and Bar1This standard is issued under the fixed designation B196/B196M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of la
2、st revision. 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. Scope*1.1 This specification establishes the req
3、uirements forcopper-beryllium alloy rod and bar in straight lengths. Thefollowing three alloys are included:Copper AlloyUNS No.Previously UsedDesignationsNominal BerylliumContent, %C17000 Alloy 165 1.7C17200 Alloy 25 1.9C17300 1.9+0.4 lead1.2 Unless otherwise required, Copper Alloy UNS No.C17200 sha
4、ll be the alloy furnished whenever SpecificationB196/B196Mis specified without any alloy designation.1.3 The values stated in either inch-pounds or SI units are tobe regarded separately as the standard. Within the text, the SIunits are shown in brackets. The values stated in each systemmay not be ex
5、act equivalents; therefore, each system shall beused independently of the other. Combining values from thetwo systems may result in nonconformance with the specifi-cation.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility
6、 of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents in the current issue of theBook of Standards form a part of this specification to the extentr
7、eferenced herein:2.2 ASTM Standards:2B194 Specification for Copper-BerylliumAlloy Plate, Sheet,Strip, and Rolled BarB249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgingsB601 Classification for Temper Designations for Copper andCopper Alloys
8、Wrought and CastB846 Terminology for Copper and Copper AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic MaterialsMetric (Withdrawn 2008)33. General Requirements3.1 The following sections of Specification B249/B249Mconstitute a part of th
9、is specification:3.1.1 Terminology;3.1.2 Dimensions and Permissible Variations;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 Reheari
10、ng;3.1.11 Certification;3.1.12 Mill Test Report;3.1.13 Packaging and Package Marking; and3.1.14 Heat Identification3.2 In addition, when a section with a title identical to thatreferenced in 3.1 above appears in this specification, it containsadditional requirements which supplement those appearing
11、inSpecification B249/B249M.4. Terminology4.1 For terms related to copper and copper alloys, refer toTerminology B846.4.2 Definitions of Terms Specific to This Standard:4.2.1 HeatA heat shall be the result of castings pouredsimultaneously from the same source of molten metal.1This specification is un
12、der the jurisdiction 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 April 1, 2013. Published April 2013. Originallyapproved in 1945 to replace portions of B120 41 T. Last previous
13、edition approvedin 2007 as B196/B196M 07. DOI: 10.1520/B0196_B0196M-07R13.2For 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
14、ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.2.2 LotThe lot shall b
15、e a heat or fraction thereof.5. Ordering Information5.1 Orders for products should include the followinginformation, as applicable:5.1.1 ASTM specification designation and year of issue,5.1.2 Quantity,5.1.3 Copper Alloy UNS No. designation (Section 1),5.1.4 Form of material (rod or bar and cross sec
16、tion, such asround, hexagonal, and so forth),5.1.5 Temper (Section 8),5.1.6 Dimensions (diameter or distance between parallelsurfaces, and length),5.1.7 How furnished (stock or specific lengths, with orwithout ends), and5.1.8 When material is ordered for agencies of the U.S.government (See Section 1
17、1).5.2 The following options are available and should bespecified in the contract or purchase order when required:5.2.1 Type of edge (square corners, rounded corners,rounded edge, full-rounded edge),5.2.2 Mechanical properties (tension test and hardness)(Section 10),5.2.3 Certification, and5.2.4 Mil
18、l Test Report.6. Materials and Manufacture6.1 Material:6.1.1 The material of manufacture shall be Copper AlloyUNS No. C17000, C17200, or C17300, cast and worked and ofsuch purity and soundness as to be suitable for processing intothe products prescribed herein.6.1.2 Heat traceability shall be mainta
19、ined and reported onthe Mill Test Report or Certification.6.2 Manufacture:6.2.1 The product shall be produced with a combination hotworking, cold working, and thermal processing to produce auniform wrought structure and the specified temper.7. Chemical Composition7.1 The material shall conform to th
20、e chemical compositionrequirements prescribed in Table 1 for Copper Alloy UNS No.designation specified in the ordering information.7.2 These composition limits do not preclude the presenceof other elements. Limits for unnamed elements may beestablished and analysis required by agreement between them
21、anufacturer, or supplier, and purchaser.7.3 Copper is customarily given as remainder, but may betaken as the difference between the sum of all elementsanalyzed and 100 %.7.4 When all the elements in Table 1 are determined, thesum of results shall be 99.5 % min.8. Temper8.1 The standard temper design
22、ations available under thisspecification and as specified in Practice B601 are solutionheat-treated TB00 (A), and cold-drawn hard TD04 (H), (seeTable 2) to be precipitation heat treated by the user. Alsoavailable are products already precipitation heat treated by themanufacturer, tempers TF00 (AT) a
23、nd TH04 (HT). Theseproducts meet property requirements in Table 3 and normallyrequire no further heat treatment by the user.9. Precipitation Heat Treatment9.1 The precipitation heat treatment is performed on TB00(A) and TD04 (H) tempers by the purchaser, after machining orforming.9.2 Conformance to
24、the TF00 (AT) and TH04 (HT) speci-fication limits shown in Table 3, for products supplied in theTB00 (A) or the TD04 (H) tempers, shall be determined bytesting test specimens heat treated at a uniform temperature of600 to 675F (316 to 357C) for the times shown in Table 4.9.3 End products may be heat
25、 treated at other times andtemperatures for specific applications. These special combina-tions of properties such as increased ductility, electricalconductivity, dimensional accuracy, endurance life, and resis-tance to elastic drift and hysteresis in springs, may be obtainedby special precipitation-
26、hardening heat treatments. The me-chanical requirements of Table 3 do not apply to such specialheat treatments. Specific test requirements as needed shall beagreed upon between the manufacturer or supplier and pur-chaser of the end product.9.4 TF00 (AT) and TH04 (HT) tempers as standard mill-hardene
27、d products have been precipitation heat treated andtested by the manufacturer for conformance to the specificationlimits shown in Table 3. Further thermal treatments of thesetempers are not normally required.10. Mechanical Property Requirements10.1 Tensile Test Requirements:10.1.1 The tension test,
28、in accordance with Test Methods E8or E8M, shall be the standard test for rod (round, hexagonal,and octagonal) and bar (square) having a nominal diameter ordistance between parallel surfaces up to38 in. 10 mm incl,and other shapes having a nominal cross-sectional area up to0.141 in.2100 mm2, incl. Th
29、e tensile strength requirementsshall be prescribed in Table 2 and Table 3 after precipitationheat treatment in accordance with 8.1.10.2 Rockwell Hardness Requirements :TABLE 1 Chemical RequirementsElementComposition,%Copper Alloy UNS No.C17000 C17200 C17300Beryllium 1.601.85 1.802.00 1.802.00Nickel
30、+ cobalt, min 0.20 0.20 0.20Nickel + cobalt+ iron, max0.6 0.6 0.6Aluminum, max 0.20 0.20 0.20Silicon, max 0.20 0.20 0.20Lead . . 0.200.6Copper remainder remainder remainderB196/B196M 07 (2013)210.2.1 Hardness shall be the standard test for round,hexagonal, octagonal, and square rod larger than38 in.
31、 1 mmnominal diameter or distance between parallel surfaces andother shapes having a nominal cross-sectional area exceeding0.141 in.23.6 mm. The hardness requirements shall be asprescribed in Table 2 for solution heat treated or solution heattreated and cold worked and in Table 4 after prescribed he
32、attreatment. The tension test should not be made except whenindicated by the purchaser.10.2.2 Where agreement on Rockwell hardness tests cannotbe reached, the tensile strength requirements of Tables 2 and 3shall be the basis for acceptance or rejection.11. Purchases for U. S. Government11.1 When spe
33、cified in the contract or purchase order,product purchased for an agency of the U. S. government shallconform to the special government requirements specified inthe Supplementary Requirements section of SpecificationB249/B249M.12. Dimensions and Permissible Variations12.1 The dimensions and toleranc
34、es for material covered bythis specification shall be as prescribed in the current edition ofSpecification B249/B249M:12.2 Diameter or Distance Between Parallel Surfaces:12.2.1 Rod, Round, Hexagonal, Octagonal12.2.2 Rod, Hot-Rolled, Round12.2.3 Rod, As-Extruded12.2.4 Bar, Rectangular and Square12.2.
35、5 Bar, As-Extruded12.3 Length12.4 Straightness12.5 Edge Contours13. Workmanship, Finish, and Appearance13.1 The product shall be free of defects, but blemishes ofa nature that do not interfere with the intended application areacceptable.14. Sampling14.1 Sampling shall be in accordance with Specifica
36、tionB249/B249M, except that the heat size is defined as 12 000 lbs(5455 kg) or fraction thereof.14.2 Sample pieces shall be taken from a heat and lot ofmaterial processed simultaneously in the same equipment, asfollows:15. Number of Tests and Retests15.1 Section 9 of Specification B249/B249M constit
37、utes apart of this specification.15.2 Test specimens shall be taken from the sample piecesselected in accordance with 14.1.15.2.1 In the case of product shipped in the TB00 or TD04condition, two test specimens shall be taken from each samplepiece. One is to be tested in the as-sampled condition, and
38、 onein the precipitation heat-treated condition.15.2.2 In the case of product shipped in the precipitationheat-treated condition, one specimen from each sample shall betested.15.3 RetestsIf any lot of material fails to conform to therequirements of this specification as a result of inaccurate heattr
39、eatment, new samples of material may be resubmitted for testafter proper heat treatment. Only two such reheat treatmentsshall be permitted.16. Specimen Preparation16.1 Section 10 of Specification B249/B249M constitutes apart of this specification.16.2 Test SpecimensTension test specimens, whenrequir
40、ed, shall be prepared in a full cross-sectional area ifpracticable and in the direction of final working unless other-wise specified. Full cross section or machined specimens shallbe as specified in Test Methods E8 or E8M.NOTE 1Mechanical property data determined on other than roundcross sections, f
41、or sizes under 0.125 in., may be compromised and beinaccurate as a result of the stress riser effect on the corner.17. Test Methods17.1 Section 11 of Specification B249/B249M constitutes apart of this specification.17.2 Chemical AnalysisThe Chemical Composition sec-tion is amended to include in the
42、group of chemical analysistechniques, Specification B194 Annex.17.3 Test methods to be followed for the determination ofelement(s) resulting from contractural or purchase order agree-ment shall be agreed upon between the supplier and thepurchaser.TABLE 2 Solution Heat-Treated and Solution Heat-Treat
43、ed and Cold-Worked Mechanical Property RequirementsTemper DesignationDiameter or MaximumDistance BetweenParallel SurfacesTensileStrength,ksiTensileStrength,MPaYield Strength, min0.2 % offset, ksiRockwellHardness,B ScaleElongation in4DA,min, %Standard Formerin. mm MPaTB00 Solution heat treated (A) al
44、l sizes all sizes 6085 410590 20 140 4585 20TD04 Hard (H) up to38, incl. up to 10 90130 620900 75 520 88103 8over38 to 1 incl. over 10 to 25 incl. 90125 620860 75 520 88102 8over 1 to 3, incl. over 25 to 75 85120 590830 75 520 88101 8A4D =4diameter.B196/B196M 07 (2013)3TABLE3PrecipitationHeat-Treate
45、dMechanicalPropertyRequirementsATemperDesignationDiameterorMaximumDistanceBetweenParallelSurfacesCopperAlloyUNSNo.Elongation in4DB,min,%C17000C17200andC17300StandardFormerTensileStrength,ksiTensileStrengthMPaYieldStrength,min,0.2%offset,ksiRockwellHardness,CScaleTensileStrength,ksiYieldStrength,min,
46、0.2%offset,ksiRockwellHardness,CScalein.mmMPaMPaMPaTF00Solutionheattreated(AT)upto3,incl.upto76.2150190C10301310C1258603239165200C11401380C145100036424over3over76.2150190C10301310C1258603239165200C11401380C13090036423TH04Hard(HT)upto38,incl.upto1170210C12101450C14510003541185225C12801550C16011003945
47、2over38to1,incl.over1to25.4,incl.170210C11701450C14510003541180220C12401520C155107038442over1to3,incl.over25.4to76.2,incl.165200C11401380C1359303439175215C12101480C145100037444AThesevaluesapplytostandardqualificationheattreatment,see8.1.B4D=4diameter.CTheupperlimitsinthetensilestrengthcolumnareforde
48、signguidanceonly.B196/B196M 07 (2013)418. Keywords18.1 beryllium copper bar; beryllium copper rod; copperberyllium bar; copper beryllium rod; UNS Alloy No. C17000;UNS Alloy No. C17200; UNS Alloy No. C17300SUMMARY OF CHANGESCommittee B05 has identified the location of selected changes to this standar
49、d since the last issue(B196/B196M 03) that may impact the use of this standard. (Approved April 1, 2007.)(1) Corrected the metric values in Section 10, Table 2, andTable 3 and changed the chemistry in Table 1 to correspond tothe CDA chemistry.(2) In 4.2.1 the definition for grain count was eliminated as itdoes not appear in the standard.(3) Definitions for Heat and Lot in Section 14 were moved toSection 4, but no change was made to definitions.(4) Section 18 was a redundant portion of Section 3 and
