1、Designation: B 441 04Standard Specification forCopper-Cobalt-Beryllium, Copper-Nickel-Beryllium, andCopper-Nickel-Lead-Beryllium Rod and Bar (UNS Nos.C17500, C17510, and C17465)1This standard is issued under the fixed designation B 441; the number immediately following the designation indicates the
2、year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Depa
3、rtment of Defense.1. Scope*1.1 This specification establishes the requirements forcopper-cobalt-beryllium alloy (UNS No. C17500), copper-nickel-beryllium alloy (UNS No. C17510), and copper-nickel-lead-beryllium alloy (UNS No. C17465) rod and bar in straightlengths.1.2 UnitsThe values stated in inch-
4、pound units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI units, which are provided forinformation only and are not considered standard.1.3 The following hazard statement pertains only to the testmethod portions of this specification: This standard
5、does notpurport to address all of the safety concerns, if any, associatedwith its use. It is the responsibility of the user of this standardto establish appropriate safety and health practices anddetermine the applicability of regulatory limitations prior touse.2. Referenced Documents2.1 ASTM Standa
6、rds:2B 193 Test Method for Resistivity of Electrical ConductorMaterialsB 194 Specification for Copper-Beryllium Alloy Plate,Sheet, Strip and Rolled BarB 249/B 249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgingsB 601 Classification for Temper De
7、signations for Copperand Copper AlloysWrought and CastB 846 Terminology for Copper and Copper AlloysE 8 Test Methods for Tension Testing of Metallic MaterialsE 18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic MaterialsE 1004 Practice for Determining Electrical Condu
8、ctivityUsing the Electromagnetic (Eddy-Current) Method3. General Requirements3.1 The following sections of Specification B 249/B 249Mconstitute a part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufacture,3.1.3 Dimensions and Permissible Variations,3.1.4 Workmanship, Finish, and Ap
9、pearance,3.1.5 Sampling,3.1.6 Number of Tests and Retests,3.1.7 Specimen Preparation,3.1.8 Test Methods,3.1.9 Significance of Numerical Limits,3.1.10 Inspection,3.1.11 Rejection and Rehearing,3.1.12 Certification,3.1.13 Test Report,3.1.14 Packaging and Package Marking, and3.1.15 Supplementary Requir
10、ements.3.2 In addition, when a section with a title identical to oneof those referenced in 3.1 appears in this specification, itcontains additional requirements that supplement those appear-ing in Specification B 249/B 249M.4. Terminology4.1 For definition of terms related to copper and copperalloys
11、, refer to Terminology B 846.5. Ordering Information5.1 Include the following information in orders for product:5.1.1 ASTM designation and year of issue,5.1.2 Copper alloy designation,5.1.3 Temper (Section 7 and Table 1 and Table 2),5.1.4 Form of product (cross section such as round, hexago-nal, oct
12、agonal, rectangular, or square),1This practice is under the jurisdiction of ASTM Committee B05 on Copper andCopper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod, Bar,Wire, Shapes, and Forgings.Current edition approved May 1, 2004. Published May 2004. Originallyapproved in 196
13、6. Last previous edition approved in 2002 as B 441 02.2For 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.1*A Sum
14、mary 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 States.5.1.5 Dimensions (diameter or distance between parallelsurfaces),5.1.6 Edge contours,5.1.7 Length,5.1.8 Quantity; total weight
15、, footage or number of pieces foreach form, temper, size, and copper alloy, and5.1.9 When product is purchased for agencies of the U.S.government.5.2 The following are options available under this specifi-cation and should be included in the contract or purchase orderwhen required:5.2.1 Heat identif
16、ication or traceability details (Specifica-tion B 249/B 249M),5.2.2 Tensile strength test (9.1),5.2.3 Certification (Specification B 249/B 249M), and5.2.4 Mill test report (Specification B 249/B 249M).6. Chemical Composition6.1 The material shall conform to the compositional limitsgiven in Table 4 f
17、or the copper alloy designated in the orderinginformation.6.1.1 These composition limits do not preclude the presenceof other elements. Limits may be established and analysisrequired for unnamed elements by agreement between themanufacturer and the purchaser.6.2 Copper, listed as the “remainder” is
18、the differencebetween the sum of results for all elements determined and100 %.6.3 When all elements specified in Table 4 for the copperalloy designated in the ordering information are determined,the sum of results shall be 99.5 % min.7. Temper7.1 Tempers, as described in Classification B 601, availa
19、bleunder this specification are: TB00 (solution heat treated (A).TF00 (precipitation hardened (AT), TD04 (solution heattreated and cold worked: hard (H), and TH04 (hard andprecipitation heat treated (HT).NOTE 1Although not produced under this specification, non-standardtempers are available by speci
20、al order and the properties of such productare subject to negotiation between the manufacturer and the purchaser.TABLE 1 Tensile Strength and Rockwell Hardness Requirements for Rod and BarATemper Designation As SuppliedStandard FormerTensileStrength,ksiB(MPaC)Rockwell Hard-ness, B ScaleElectricalCon
21、ductivityIACS min, %TB00 solution heat-treated (A) 3555 (240380) 50 max 20TD04 solution heat-treated and cold-worked: hard (H) 6580 (450550) 6080 20After Precipitation Heat TreatmentTF00 precipitation hardened (AT) 100130 (690895)D92100 45TH04 hard and precipitation heat-treated (HT) 110140 (760965)
22、D95102 48AThese values apply to mill products. See Section 8 for exceptions in end products.Bksi = 1000 psi.CSee Appendix.DThe upper limits in the tensile strength column are for design guidance only.TABLE 2 Precipitation Heat-Treatment Time for Acceptance TestsTemper Designation Copper Alloy UNSNo.
23、 C17500 At900F (482C), hCopper Alloy UNSNo. C17510 At850F (454C)Aor900F (482C)A,hStandard FormerTB00 solution heat-treated (A) 3 3TD04 solution heat-treated and cold-worked: hard (H) 2 2ASpecific temperature used must conform with suppliers certification.TABLE 3 Tensile Strength and Rockwell Hardnes
24、s Requirements for Rod and Bar (C17465)ATemper Designation As SuppliedStandard Former Tensile Strength,ksiB(MPa)CRockwell Hardness,B ScaleElectrical ConductivityIACS min, %TH04 hard and precipitation heat-treated (HT) 125145 (8601000)D95 min 44AThese values apply to mill products. See Section 8 for
25、exceptions in end products.Bksi = 1000 psi.CSee Appendix.DThe upper limits in the tensile strength column are for design guidance only.TABLE 4 Chemical CompositionConcentration, %ElementCopper AlloyUNS No.C17500Copper AlloyUNS No.C17510Copper AlloyUNS No.C17465Beryllium 0.40.7 0.20.6 0.150.50Cobalt
26、2.42.7 0.3 max .Nickel . 1.42.2 1.01.4AIron, max 0.10 0.10 0.20Aluminum, max 0.20 0.20 0.20Silicon, max 0.20 0.20 0.20Tin, max . . 0.25Zirconium, max . . 0.50Lead . . 0.200.6Copper remainder remainder remainderAIncl. Co.B4410428. Physical Property Requirements8.1 Electrical Conductivity:8.1.1 Produc
27、t furnished to this specification shall conformto the electrical conductivity requirement given in Table 1 forthe applicable temper, when tested in accordance with TestMethod E 1004 for product equal to and greater than38 in.(9.52 mm) in nominal diameter or distance between parallelsurfaces and othe
28、r shapes having a nominal cross sectional areaexceeding 0.141 in.2(91 mm2). On product less than38 in. (9.5mm) in nominal diameter or distance between parallel surfacesand other shapes having a nominal cross sectional area lessthan 0.141 in.2(91 mm2), resistivity will be measured inaccordance with T
29、est Method B 193 and converted to conduc-tivity.9. Mechanical Property Requirements9.1 Tensile test results shall be the product acceptancecriteria, when tested in accordance with Test Methods E 8 forproduct equal to or less than38 in. (9.5 mm) in nominaldiameter or distance between parallel surface
30、s, and othershapes having a nominal cross sectional area equal to or lessthan 0.141 in.2(91 mm2).9.1.1 Tensile strength requirements are given in Table 1.9.2 Rockwell hardness is the product acceptance criteria,when tested in accordance with Test Methods E 18 for productlarger than38 in. (9.5 mm) in
31、 nominal diameter or distancebetween parallel surfaces, and other shapes having a nominalcross sectional area larger than 0.141 in.2(91 mm2).9.2.1 The referee product rejection criteria shall be tensiletest results, when tested in accordance with Test Methods E 18.9.3 The tension test will be used f
32、or qualification of allmaterial when specifically required by the purchaser, as insome government requirements.10. Precipitation Heat-Treatment10.1 The precipitation heat-treatment is performed on TB00(A) and TD04 (H) tempers by the purchaser after forming.10.2 Conformance to the TF00 (AT) and TH04
33、(HT) speci-fication limits shown in Table 1, for products supplied in theTB00 (A) or the TD04 (H) tempers, shall be determined bytesting test specimens heat-treated at a uniform temperature of850 to 900F for the times shown in Table 2.10.3 End products may be heat-treated at other times andtemperatu
34、res for specific applications. These special combina-tions of properties such as increased ductility, dimensionalaccuracy, and endurance strength may be obtained by specialprecipitation-hardening heat treatments. The mechanical re-quirements of Table 1 do not apply to such special heattreatment. Spe
35、cific test requirements as needed shall be agreedupon between the manufacturer or the supplier and the pur-chaser of the end product.10.4 TF00 (AT) and TH04 (HT) tempers as standard mill-hardened products have been precipitation heat-treated andtested by the manufacturer. An appropriate time and tem
36、pera-ture has been used to produce properties within the specifica-tion limits shown in Table 1. Table 2 does not apply. Furtherthermal treatment of these tempers is not normally required.10.5 Material may be supplied with nonstandard properties.Table 1 values would not apply. Specific test requirem
37、ents asneeded shall be agreed upon between the manufacturer or thesupplier and the purchaser of these end products.11. Number of Tests and Retests11.1 Retests:11.1.1 Refer to Specification B 249/B 249M with the fol-lowing additional requirements:11.1.2 Material that fails to conform to the requireme
38、nts ofthis specification due to inadequate heat-treatment may beheat-treated subsequently and submitted for test. Only twosuch subsequent treatments shall be permitted.12. Test Methods12.1 Chemical Analysis:12.1.1 The chemical composition shall be determined, incase of dispute, in accordance with th
39、e applicable method inthe Annex of Specification B 194.12.1.2 The test method(s) to be followed for the determina-tion of element(s) resulting from contractual or purchase orderagreement shall be as agreed upon between the supplier and thepurchaser.12.2 Mechanical Property Requirements:12.2.1 In cas
40、e of dispute over Rockwell hardness testresults, the rejection criteria shall be tensile test results, whentested in accordance with Test Methods E 8.13. Keywords13.1 beryllium copper bar; beryllium copper rod; UNSC17500 bar; UNS C17500 rod; UNS C17510 bar; UNSC17510 rod; UNS C17465 bar; UNS C17465
41、rodB441043SUMMARY OF CHANGESCommittee B05 has identified the location of selected changes to this standard since the last issue (B 441 02)that may impact the use of this standard. (Approved May 1, 2004.)(1) Added UNS Alloy No. C17465. (2) Added Table 3.ASTM International takes no position respecting
42、 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 own responsibility.This standar
43、d 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 addressed to ASTM International
44、 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, at the address shown below.Thi
45、s 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 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).B441044
