1、Designation: B 453/B 453M 08Standard Specification forCopper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, andShapes1This standard is issued under the fixed designation B 453/B 453M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the y
2、ear of last 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 establishe
3、s the requirements forcopper-zinc-lead alloy (leaded-brass) rod, bar, wire, and shapesproduced from Copper Alloys UNS Nos. C33500, C34000,C34500, C35000, C35300, C35330, and C35600. These alloyshave nominal composition given in Table 1.1.1.1 This product is suitable for applications requiringextensi
4、ve machining before such cold-forming operations asswaging, flaring, severe knurling, or thread rolling.NOTE 1Refer toAppendix X1 for additional applications information.1.1.2 Typically, product made to this specification is fur-nished as straight lengths. Sizes12 in. 12 mm and under maybe furnished
5、 as wire in coils or on reels when requested.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the t
6、wo systems may result in non-conformancewith the standard.NOTE 2Refer to Specifications B 16/B 16M and B 140/B 140M forcopper-zinc-lead (leaded-brass) rod and bar for screw machine applica-tions.2. Referenced Documents2.1 ASTM Standards:2B 16/B 16M Specification for Free-Cutting Brass Rod, Barand Sh
7、apes for Use in Screw MachinesB 140/B 140M Specification for Copper-Zinc-Lead (RedBrass or Hardware Bronze) Rod, Bar, and ShapesB 249/B 249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgingsB 250/B 250M Specification for General Requirements forWr
8、ought Copper Alloy WireB 601 Classification for Temper Designations for Copperand Copper AlloysWrought and CastE8 Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Mate-rials Metric3E18 Test Methods for Rockwell Hardness of MetallicMaterialsE62 Te
9、st Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E 478 Test Methods for Chemical Analysis of CopperAlloys3. General Requirements3.1 The following sections of Specification B 249/B 249Mand B 250/B 250M are a part of this specification:3.1.1 Terminology,3.1.2 Materials
10、and Manufacture,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 Rehearing,3.1.11 Certification,1This specification is under the jurisd
11、iction 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 Oct. 1, 2008. Published November 2008. Originallyapproved in 1967. Last previous edition approved in 2005 as B 453/B 453M 05.2
12、For 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 historical stand
13、ard is referencedon www.astm.org.TABLE 1 Nominal Composition, %Copper AlloyUNS No.Copper Zinc LeadC33500 63.5 36.0 0.5C34000 63.5 35.3 1.2C34500 63.5 34.5 2.0C35000 61.5 37.1 1.4C35300 61.5 36.5 2.0C35330 61.8 35.7 2.5C35600 61.5 36.0 2.51*A Summary of Changes section appears at the end of this stan
14、dard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.12 Mill Test Report,3.1.13 Packaging and Package Marking, and3.1.14 Supplementary Requirements.3.2 In addition, when a section with a title identical to oneof those referenced i
15、n 3.1 appears in this specification, itcontains additional requirements which supplement those ap-pearing in Specifications B 249/B 249M and B 250/B 250M.4. Ordering Information4.1 Include the following information in orders for product:4.1.1 ASTM designation and year of issue (for example,B 453/B 4
16、53M 05),4.1.2 Copper Alloy UNS Number 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 (See Section 6),4.1.6 Dimensions (diameter or distance between parallelsurfaces, width, thickness),4.1.7 How furnished: straight length
17、s, coils, or reels,4.1.8 Length,4.1.9 Total length or number of pieces of each size,4.1.10 Weight: total for each form, and size, and4.1.11 When product is purchased for agencies of the U.S.government.4.2 The following are options and should be specified in theordering information when required:4.2.
18、1 Tensile test for product12 in. (12 mm) and over indiameter or distance between parallel surfaces,4.2.2 Certification,4.2.3 Mill test report, and4.2.4 Automatic screw machine use (9.1.4).5. Chemical Composition5.1 The material shall conform to the chemical compositionrequirements in Table 2 for the
19、 Copper Alloy UNS No.designation specified in the ordering information.5.1.1 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. For copper alloys in whichz
20、inc is listed as the “remainder,” either copper or zinc may betaken as the difference between the sum of all elementsdetermined and 100 %. When copper is so determined, thatdifference value shall conform to the requirements given inTable 2.5.2 When all the named elements in Table 2 for the specified
21、alloy are determined, the sum of results shall be as follows:Copper Alloy UNS No. Percent, minC33500, C34000, C34500, C35000 99.6C35300, C35330, C35600 99.55.3 In the event that heat identification or traceability isrequired, the purchaser shall specify the details desired.NOTE 3Due to the discontin
22、uous 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. Temper6.1 The standard tempers, as defined in ClassificationB 601, for products described in this specification are given
23、 inTables 3-6.6.1.1 O60 (soft anneal),6.1.2 H01 (14 hard),6.1.3 HR01 (14 hard and Stress Relieved), and6.1.4 H02 (12 hard).6.2 Other tempers, and temper for other products includingshapes, shall be subject to agreement between the manufacturerand the purchaser.7. Mechanical Property Requirement7.1 R
24、ockwell Hardness Requirements:7.1.1 Product with a diameter or distance between parallelsurfaces of12 in. (12 mm) and over shall conform to therequirements of Table 3 and Table 4 when tested in accordancewith Test Methods E18.TABLE 2 Chemical RequirementsCopper AlloyUNS No.Composition, %Copper Lead
25、Iron ZincC33500 62.065.0 0.250.7 0.15 max remainderC34000 62.065.0 0.81.5 0.15 max remainderC34500 62.065.0 1.52.5 0.15 max remainderC35000 61.063.0 0.82.0 0.15 max remainderC35300 61.063.0 1.52.5 0.15 max remainderC35330A59.564.0 1.53.5B remainderC35600 60.063.0 2.03.0 0.15 max remainderA.02 .25 As
26、BPb may be reduced to 1.0 % by agreement.TABLE 3 Rockwell Hardness Requirements, Inch-PoundANOTESI values are stated in Table 4.Temper DesignationDiameter or DistanceBetween ParallelSurfaces, in.Rockwell B HardnessDetermined on theCross Section MidwayBetween Surface andCenterCode NameRod and WireO60
27、 soft anneal12 and over 45 maxH0114 hard12 to 1, both inclover 1 to 2, inclover 2507540703565HR0114 hard andStress Relieved12 to 1, both inclover 1 to 2, inclover 2507540703565H0212 hard12 to 1, both inclover 1 to 2, inclover 2608055754070BarBO60 soft anneal12 and over 35 maxH0114 hard12 to 1, both
28、inclover 1 to 2, inclover 2457535703565H0212 hard12 to 1, both inclover 1 to 2, inclover 2458540803570ARockwell hardness requirements are not established for diameters less than12in.BFor rectangular bar, the Distance Between Parallel Surfaces refers tothickness.B 453/B 453M 0827.1.1.1 Rockwell hardn
29、ess test results shall be the basis forproduct acceptance for mechanical properties except whentensile test is so specified in the ordering information (4.2.1).7.1.1.2 Product that fails to conform to the hardness require-ments shall be acceptable if tensile strength requirements are inconformance.7
30、.2 Tensile Strength Requirements:7.2.1 Product with diameter or distance between parallelsurfaces under12 in. (12 mm) shall conform to the require-ments of Tables 3-6 when tested in accordance with TestMethods E8or E8M.7.2.2 When specified in the contract or purchase order,product with diameter or d
31、istance between parallel surfaces of12 in. (12 mm) and over shall conform to the tensile require-ments prescribed in Tables 3-6 for the specified temper and sizewhen tested in accordance with Test Methods E8or E8M.8. Purchases for U.S. Government8.1 When specified in the contract or purchase order,p
32、roduct purchased for agencies of the U.S. government shallconform to the special government requirements stipulated inthe Supplementary Requirements section of SpecificationsB 249/B 249M and B 250/B 250M.9. Dimensions and Permissible Variations9.1 The dimensions and tolerances for rod, bar, and shap
33、esin accordance with this specification shall be as specified inSpecification B 249/B 249M with particular reference to thefollowing tables in that specification:9.1.1 Diameter or Distance Between Parallel Surfaces:9.1.1.1 RodTable 1.9.1.1.2 BarTables 8 and 10.9.1.2 ShapesDimensional tolerances shal
34、l be subject toagreement between the manufacturer and the purchaser.9.1.3 LengthTables 13 and 14.9.1.4 StraightnessTable 16.9.1.4.1 General use straightness tolerances will apply unlessrod is specified for automatic screw machine use at the time ofplacing an order.9.1.5 AnglesAll regular polygonal s
35、ections shall havesubstantially exact angles and, unless otherwise specified,sharp corners.9.2 The dimensions and tolerances for wire product de-scribed by this specification shall be as specified in Table 1 ofSpecification B 250/B 250M.10. Test Methods10.1 Chemical Analysis:10.1.1 Composition shall
36、 be determined, in case of dis-agreement, as follows:Element MethodCopper E 478Iron E 478Lead E 478 (AA)Zinc E 478 (titrimetric)Arsenic E6210.1.2 Test method(s) to be used for the determination ofelement(s) required by contractual or purchase order agreementshall be as agreed upon between the manufa
37、cturer or supplierand the purchaser.11. Keywords11.1 copper-zinc-lead alloy bar; copper-zinc-lead alloy rod;copper-zinc-lead alloy wire; leaded-brass bar; leaded-brassrod; leaded-brass wire; UNS No. C33500; UNS No. C34000;UNS No. C34500; UNS No. C35000; UNS No. C35300; UNSNo. C35330; UNS No. C35600T
38、ABLE 4 Rockwell Hardness Requirements, SIANOTEInch-pound values are stated in Table 3.Temper DesignationDiameter or DistanceBetween ParallelSurfaces, mmRockwell B HardnessDetermined on theCross Section MidwayBetween Surface andCenterCode NameRod and WireO60 soft anneal 12 and over 45 maxH0114 hard 1
39、2 to 25, both inclover 25 to 50, inclover 50507540703565HR0114 hard andStress Relieved12 to 25, both inclover 25 to 50, inclover 50507540703565H0212 hard 25 to 50, both inclover 25 to 50, inclover 50608055754070BarBO60 soft anneal 12 and over 35 maxH0114 hard 12 to 25, both inclover 25 to 50, inclov
40、er 50457535703565H0212 hard 25 to 50, both inclover 25 to 50, inclover 50458540803570ARockwell hardness requirements are not established for diameters less than12 mm.BFor rectangular bar, the Distance Between Parallel Surfaces refers tothickness.B 453/B 453M 083TABLE 5 Tensile Requirements, Inch-Pou
41、ndNOTESI values are stated in Table 6.Temper DesignationDiameter or Distance BetweenParallel Surfaces, in.Tensile Strength, ksiYield Strength at 0.5 %Extension Under Load, minElongationAin43 Diameter or43 Thickness, min, %Code Name min max ksiRod and WireO60 soft anneal under1212 to 1, both inclover
42、 1464440161515202530H0114 hard under1212 to 1, both inclover 152504265626225201510B1520HR0114 hard andStress Relievedunder1212 to 1, both inclover 152504265626225201510B1520H0212 hard under1212 to 1, both inclover 15755508070622525207C1015BarDO60 soft anneal under1212 to 1, both inclover 14644401615
43、15202525H0114 hard under1212 to 1, both inclover 1484540252015101520H0212 hard under1212 to 1, both inclover 1504540251715101520AIn any case, a minimum gage length of 1 in. shall be used.BFor product furnished as wire, the elongation shall be 7 % min.CFor product furnished as wire, the elongation sh
44、all be 4 % min.DFor rectangular bar, the Distance Between Parallel Surfaces refers to thickness.B 453/B 453M 084APPENDIX(Nonmandatory Information)X1. ADDITIONAL INFORMATIONX1.1 Selection of the alloy and temper best suited for theparticular application involves a compromise between desiredhardness o
45、f the finished part, machinability, and ductility ormalleability. The following guide may be used:X1.1.1 In general, the higher the lead content, the better themachinability and lower the ductility and malleability.X1.1.2 In general, increasing the copper content improvesductility and malleability.X
46、1.1.3 In general, the softer tempers have improved ductil-ity and malleability but are less able to withstand unbalancedtool pressures.X1.1.4 Arsenic is added to improve corrosion resistance dueto dezincification.X1.1.5 HR01 temper is used to improve resistance to stresscorrosion cracking.TABLE 6 Te
47、nsile Requirements, SINOTEInch-pound values are stated in Table 5.Temper DesignationDiameter or Distance BetweenParallel Surfaces, mmTensile Strength, MpaYield Strength at 0.5 %Extension Under Load, minElongationAin43 Diameter or43 Thickness, min, %Code Name min max ksiRod and WireO60 soft anneal un
48、der 1212 to 25, both inclover 25315305275110105105202530H0114 hard under 1212 to 25, both inclover 2536034529045042542517014010510B1520HR0114 hard andStress Relievedunder 1212 to 25, both inclover 2536034529045042542517014010510B1520H0212 hard under 1212 to 25, both inclover 253953803455554854251701
49、701407C1015BarDO60 soft anneal under 1212 to 25, both inclover 25315305275110105105202525H0114 hard under 1212 to 25, both inclover 25330310275170140105101520H0212 hard under 1212 to 25, both inclover 25345310275170115105101520AIn any case, a minimum gage length of 25 mm shall be used.BFor product furnished as wire, the elongation shall be 7 % min.CFor product furnished as wire, the elongation shall be 4 % min.DFor rectangular bar, the Distance Between Parallel Su
