1、Designation: B 301/B 301M 04Standard Specification forFree-Cutting Copper Rod, Bar, Wire, and Shapes1This standard is issued under the fixed designation B 301/B 301M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last
2、 revision. A number 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 requ
3、irements for free-cutting copper rod, bar, wire, and shapes of UNS Alloy Nos.C14500, C14510, C14520, C14700, and C18700, suitable forhigh-speed screw machine work or for general applications.1.2 Typically, product made to this specification is furnishedas straight lengths. Sizes12 in. 12 mm and unde
4、r may befurnished in coils when requested.1.3 UnitsThe values stated in either inch-pound or SIunits are to be regarded separately as standard. Within the text,SI units are shown in brackets. The values stated in eachsystem are not exact equivalents; therefore, each system shallbe used independently
5、 of the other. Combining values from thetwo systems may result in nonconformance with this specifi-cation.2. Referenced Documents2.1 ASTM Standards:2B 193 Test Method for Resistivity of Electrical ConductorMaterialsB 249/B 249M Specification for General Requirements forWrought Copper and Copper-Allo
6、y Rod, Bar, Shapes, andForgingsB 250/B 250M Specification for General Requirements forWrought Copper-Alloy WireE 8 Test Methods for Tension Testing of Metallic MaterialsE 8M Test Methods for Tension Testing of Metallic Mate-rialsE 121 Test Methods for Chemical Analysis of Copper-Tellurium AlloysE 47
7、8 Test Methods for Chemical Analysis of CopperAlloys3. General Requirements3.1 The following sections of Specifications B 249/B 249Mor B 250/B 250M constitute 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
8、, Finish, and Appearance,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 Inspection,3.1.10 Significance of Numerical Limits,3.1.11 Rejection and Rehearing,3.1.12 Certification,3.1.13 Test Reports,3.1.14 Packaging and Package Marking, and3.1.15 Sup
9、plementary Requirements.3.2 In addition, when a section with a title identical to thatreferenced in 3.1 appears in this specification, it containsadditional requirements which supplement those appearing inSpecifications B 249/B 249M or B 250/B 250M.4. Ordering Information4.1 Include the following in
10、formation in orders for prod-ucts:4.1.1 ASTM designation and year of issue,4.1.2 Copper UNS No. designation,4.1.3 Product (rod, bar, wire, or shape),4.1.4 Cross section (round, hexagonal, square, and so forth),4.1.5 Temper (Section 6),4.1.6 Dimensions, diameter or distance between parallelsurfaces;
11、width and thickness,4.1.7 How furnished: straight lengths, coils, or reels,4.1.8 Length (Section 9.3),4.1.9 Total length, or number of pieces of each size,4.1.10 Total weight of each size, and4.1.11 When product is purchased for agencies of the U.S.government (Specifications B 249/B 249M or B 250/B
12、250M).4.2 The following options are available and should bespecified at the time of placing of the order when required:1This specification is under the jurisdiction of ASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rods,Bar, Wire, Shapes, and
13、 Forgings.Current edition approved May 1, 2004. Published May 2004. Originallyapproved in 1955. Last previous edition approved in 1999 as B 301/B 301M 99.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMS
14、tandards volume information, refer to the standards Document Summary page onthe ASTM website.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 States.4.2.1 Certification (Speci
15、fications B 249/B 249M or B 250/B 250M),4.2.2 Mill Test Reports (Specifications B 249/B 249M orB 250/B 250M),4.2.3 Yield strength tests (Section 8),4.2.4 Resistivity tests (Section 7), and4.2.5 Automatic screw machine use (9.4).5. Chemical Composition5.1 The material shall conform to the chemical co
16、mpositionrequirements in Table 1 for the UNS No. designation specifiedin the ordering information.5.2 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.
17、Temper6.1 The standard tempers for products described in thisspecification are given in Table 2.6.1.1 Rod (round, hexagonal, and octagonal) shall be fur-nished in H02 (half-hard) temper for general use and applica-tions involving moderate cold forming and in H04 (hard)temper (round only) for applica
18、tions that require maximumstrength and resistance to bending under cutting-tool pressure.6.1.2 Bar shall be furnished in H04 (hard) temper only.6.1.3 Wire shall be furnished in H02 (half-hard) or H04(hard) temper.6.2 Other tempers, and temper for other products includingshapes, shall be subject to a
19、greement between the manufacturerand the purchaser.7. Physical Property Requirements7.1 Electrical Requirements:7.1.1 The product produced from Copper UNS Nos.C14500, C14520, C14700, and C18700 shall conform to thefollowing electrical requirements, when tested in accordancewith Test Method B 193, at
20、 a temperature of 68F 20C.UNS No. Resistivity, max, V, g/m2Conductivity, min, % IACSAC14500 0.180 33 85.0C14520 0.204 37 75.0C14700 0.170 30 90.0C18700 0.170 30 90.0_AInternational Annealed Copper Standard.7.1.2 Copper UNS No. C14510 is not intended for electricalapplications. This alloy, therefore,
21、 has no electrical require-ments.7.1.3 Electrical resistivity tests need not be made exceptwhen indicated by the purchaser at the time of placing theorder. The electrical resistivity tests shall be made on annealedtest specimens.8. Mechanical Property Requirements8.1 The product shall conform to the
22、 tensile strengh andelongation requirements of Table 2 when tested in accordancewith Test Methods E 8 and E 8M.8.2 When specified in the contract or purchase order, theyield strength shall be determined and conform with the yieldstrength requirements of Table 2 when tested in accordancewith Test Met
23、hods E 8 and E 8M.9. Dimensions, Mass, and Permissible Variations9.1 The dimensions and tolerances for material described bythis specification shall be as specified in Specifications B 249/B 249M or B 250/B 250M with particular reference to thefollowing tables and related paragraphs in those specifi
24、cations.9.2 Diameter or Distance Between Parallel Surfaces:9.2.1 Rod (Round, Hexagonal, and Octagonal)See 6.2and Table 1 of Specification B 249/B 249M.9.2.2 Bar (Rectangular and Square)See 6.2 and Tables 7and 10 of Specification B 249/B 249M.9.2.3 WireSee 6.2 and Table 1 of Specification B 250/B 250
25、M.9.3 LengthsH04 (hard) temper bar, unless otherwisespecified, and all rod shall be furnished in straight lengths. See6.3 and Tables 13 and 14 of Specification B 249/B 249M.9.4 StraightnessSee 6.4 and Table 16 of SpecificationB 249/B 249M.TABLE 1 Chemical RequirementsElementComposition, %Copper or C
26、opper Alloy UNS No.C14500AC14510 C14520 C14700AC18700Tellurium 0.400.7 0.300.7 0.400.7 . . . . . .Sulfur . . . . . . . . . 0.200.50 . . .Lead . . . 0.05 max . . . . . . 0.81.5Phosphorus 0.0040.012 0.0100.030 0.0040.020 0.0020.005 . . .Copper (incl silver) 99.90 minB99.85 minB99.90 minB99.90 minC99.5
27、 minDAIncludes oxygen-free or deoxidized grades with deoxidizers (such as phosphorus, boron, lithium, or other) in an amount agreed upon.BIncludes tellurium.CIncludes sulfur and phosphorus.DIncludes lead.B 301/B 301M 0429.4.1 General use straightness tolerances will apply unlessrod is specified for
28、automatic screw machine use at the time ofplacing the order.9.5 Edge ContoursSee 6.5 of Specification B 249/B 249M.10. Test Methods10.1 Chemical Analysis:10.1.1 Composition shall be determined, in case of dis-agreement, as follows:Element Test MethodsCopper E 478Phosphorus E 478Tellurium E 121Lead E
29、 47811. Keywords11.1 free-cutting copper rod and bar; free-cutting copperwire; lead-bearing copper rod and bar; screw machine work;tellurium-bearing copper rod and bar; UNS No. C14500; UNSNo. C14510; UNS No. C14520; UNS No. C14700; UNS No.C18700SUMMARY OF CHANGESCommittee B05 has identified the loca
30、tion of selected changes to this standard since the last issue(B 301/B 301M 99) that may impact the use of this standard. (Approved May 1, 2004.)(1) Updated references to B 249/B 249M and B 250/B 250M.(2) Revised Table 1 to conform with UNS Standard AlloyDesignations.(3) Clarified size ranges for ba
31、r in Table 2 with an addedfootnote.(4) Clarified rod straightness tolerances.(5) Added alloy numbers to keywords.ASTM 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 advi
32、sed 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 every five years andif not revised, either
33、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 technical committee, which you may attend. If
34、 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 Conshohocken, PA 19428-2959,United States. Individ
35、ual 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 Tensile RequirementsTemper Designation Diameter or Distance
36、BetweenParallel Surfaces,Ain. mmTensile Strength, min Yield Strength at 0.5 % ExtensionUnder Load,BminElongation in 43 diameteror thickness of specimen,Cmin, %Standard Former ksi MPa ksi MPaHO2 half-hard Rod:116 to14 1.5 to 6.5, incl 38 260 30 205 8over14 to 258 6.5 to 67, incl 38 260 30 205 12Wire:
37、116 to12 1.5 to 12, incl 38 260 6HO4 hard Rod (round only):116 to14 1.5 to 6.5, incl 48 330 40 275 4over14 to 114 6.5 to 32, incl 44 305 38 260 8over 114 to 3 32 to 76, incl 40 275 35 240 8Bar:over 0.188 to38 5 to 10, incl 42 290 35 240 10over38 to12 10 to 12, incl 40 275 32 220 10over12 to 2 12 to
38、50, incl 33 225 18 125 12over 2 to 4 50 to 100, incl 32 220 15 105 12Wire:116 to12 1.5 to 12, incl 48 330 . . 4AFor rectangular bar, the Distance Between Parallel Surfaces refers to thickness.BNot determined unless specifically requested.CIn any case, a minimum gage length of 1 in. 25 mm shall be used.B 301/B 301M 043
