1、Designation: B453/B453M 11Standard Specification forCopper-Zinc-Lead Alloy (Leaded-Brass) Rod, Bar, andShapes1This standard is issued under the fixed designation B453/B453M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year
2、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 establishes th
3、e requirements forcopper-zinc-lead alloy (leaded-brass) rod, bar, wire, and shapesproduced from Copper Alloys UNS Nos. C33500, C34000,C34500, C35000, C35300, C35330, C35350, and C35600.These alloys have nominal composition given in Table 1.1.1.1 This product is suitable for applications requiringext
4、ensive 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 furni
5、shed 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 t
6、he two systems may result in non-conformancewith the standard.NOTE 2Refer to Specifications B16/B16M and B140/B140M forcopper-zinc-lead (leaded-brass) rod and bar for screw machine applica-tions.2. Referenced Documents2.1 ASTM Standards:2B16/B16M Specification for Free-Cutting Brass Rod, Barand Shap
7、es for Use in Screw MachinesB140/B140M Specification for Copper-Zinc-Lead (RedBrass or Hardware Bronze) Rod, Bar, and ShapesB249/B249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgingsB250/B250M Specification for General Requirements forWrought Co
8、pper Alloy WireB601 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 Materi-als Metric3E18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE62 Test Meth
9、ods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)3E478 Test Methods for ChemicalAnalysis of CopperAlloys3. General Requirements3.1 The following sections of Specification B249/B249Mand B250/B250M are a part of this specification:3.1.1 Terminology,3.1.2 Materials and Manufact
10、ure,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 jurisdiction ofAST
11、M 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, 2011. Published November 2011. Originallyapproved in 1967. Last previous edition approved in 2008 as B453/B453M 08.DOI: 10.1520/B0
12、453_B0453M-11.2For 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.3Withdrawn. The last approved version of this h
13、istorical standard 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 2.5C35350 62.0 34.5 3.2C35600 61.5 36.0 2.51*A Summary of Changes sect
14、ion appears at the end of this standard.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 id
15、entical to oneof those referenced in 3.1 appears in this specification, itcontains additional requirements which supplement those ap-pearing in Specifications B249/B249M and B250/B250M.4. Ordering Information4.1 Include the following information in orders for product:4.1.1 ASTM designation and year
16、of issue (for example,B453/B453M 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 H
17、ow furnished: straight lengths, 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 i
18、nformation when required:4.2.1 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 compositionre
19、quirements in Table 2 for the 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
20、 For copper alloys in whichzinc 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
21、 in Table 2 for the specifiedalloy are determined, the sum of results shall be as follows:Copper Alloy UNS No. Percent, minC33500, C34000, C34500, C35000 99.6C35300, C35330, C35350, C35600 99.55.3 In the event that heat identification or traceability isrequired, the purchaser shall specify the detai
22、ls desired.NOTE 3Due 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. Temper6.1 The standard tempers, as defined in Classification B601,for products descr
23、ibed in this specification are given in Tables3-6.6.1.1 O60 (soft anneal),6.1.2 H01 (14 hard),6.1.3 HR01 (14 hard and Stress Relieved), and6.1.4 H02 (12 hard) (UNS Alloy No. C35350 is availableonly in this temper).6.2 Other tempers, and temper for other products includingshapes, shall be subject to
24、agreement between the manufacturerand the purchaser.7. Mechanical Property Requirement7.1 Rockwell 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
25、Test Methods E18.7.1.1.1 Rockwell hardness 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 st
26、rength requirements are inconformance.7.2 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 E8 orE8M.7.2.2 When specified in the contract or pu
27、rchase order,product with diameter or distance 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 E8 or E8M.8. Purchases for U.S. Government8.1 When speci
28、fied in the contract or purchase order,product purchased for agencies of the U.S. government shallconform to the special government requirements stipulated inthe Supplementary Requirements section of SpecificationsB249/B249M and B250/B250M.9. Dimensions and Permissible Variations9.1 The dimensions a
29、nd tolerances for rod, bar, and shapesin accordance with this specification shall be as specified inTABLE 2 Chemical RequirementsCopper AlloyUNS No.Composition, %Copper Lead 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 re
30、mainderC35000 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 remainderC35350C61.0-63.0 2.0-4.5 0.40 remainderC35600 60.063.0 2.03.0 0.15 max remainderA.02 .25 AsBPb may be reduced to 1.0 % by agreement.Cincludes nickel 0.05-0.30, phosphorus 0.05-0.
31、20, tin 0.30 max.B453/B453M 112Specification B249/B249M 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 shall be subject toagreement between th
32、e 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 sections shall havesubstantially exa
33、ct 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 B250/B250M.10. Test Methods10.1 Chemical Analysis:10.1.1 Composition shall be determined, in case of dis-agreem
34、ent, as follows:Element MethodArsenic E62Copper E478Iron E478Lead E478 (AA)Nickel E478Phosphorus E62Tin E478Zinc E478 (titrimetric)10.1.2 Test method(s) to be used for the determination ofelement(s) required by contractual or purchase order agreementshall be as agreed upon between the manufacturer o
35、r 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. C35350; UNS No.
36、 C35600TABLE 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 andCenter (All Alloys ex-cept C35350)Rockwell HardnessDetermined on
37、 theCross Section MidwayBetween Surface andCenter (Alloy C35350)Code NameRod and WireO60 soft anneal12 and over 45 maxH0114 hard12 to 1, both inclover 1 to 2, inclover 2507540703565.HR0114 hard andStress Relieved12 to 1, both inclover 1 to 2, inclover 2507540703565.H0212 hard12 to 1, both inclover 1
38、 to 2, inclover 2608050754070688562805370BarBO60 soft anneal12 and over 35 max .H0114 hard12 to 1, both inclover 1 to 2, inclover 2457535703565.H0212 hard12 to 1, both inclover 1 to 2, inclover 2458540803570688562805370ARockwell hardness requirements are not established for diameters less than12in.B
39、For rectangular bar, the Distance Between Parallel Surfaces refers tothickness.B453/B453M 113TABLE 4 Rockwell Hardness Requirements, SIANOTEInch-pound values are stated in Table 3.Temper DesignationDiameter or DistanceBetween ParallelSurfaces, mmRockwell B HardnessDetermined on theCross Section Midw
40、ayBetween Surface andCenter (All Alloys ex-cept C35350)Rockwell HardnessDetermined on theCross Section MidwayBetween Surface andCenter (Alloy C35350)Code NameRod and WireO60 soft anneal 12 and over 45 maxH0114 hard 12 to 25, both inclover 25 to 50, inclover 50507540703565.HR0114 hard andStress Relie
41、ved12 to 25, both inclover 25 to 50, inclover 50507540703565.H0212 hard 12 to 25, both inclover 25 to 50, inclover 50608050754070688562805370BarBO60 soft anneal 12 and over 35 max .H0114 hard 12 to 25, both inclover 25 to 50, inclover 50457535703565.H0212 hard 12 to 25, both inclover 25 to 50, inclo
42、ver 50458540803570688562805370ARockwell hardness requirements are not established for diameters less than12 mm.BFor rectangular bar, the Distance Between Parallel Surfaces refers tothickness.B453/B453M 114TABLE 5 Tensile Requirements, Inch-PoundNOTESI values are stated in Table 6.Temper DesignationD
43、iameter 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 1464440161515202530H0114 hard under1212 to 1, both inclo
44、ver 152504265626225201510B1520HR0114 hard andStress Relievedunder1212 to 1, both inclover 152504265626225201510B1520H0212 hard under1212 to 1, both inclover 15755508070622525207C1015BarDO60 soft anneal under1212 to 1, both inclover 1464440161515202525H0114 hard under1212 to 1, both inclover 14845402
45、52015101520H0212 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 shall be 4 % min.DFor rectangular bar, the Distance Between
46、 Parallel Surfaces refers to thickness.B453/B453M 115APPENDIX(Nonmandatory Information)X1. ADDITIONAL INFORMATIONX1.1 Selection of the alloy and temper best suited for theparticular application involves a compromise between desiredhardness of the finished part, machinability, and ductility ormalleab
47、ility. 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.X1.1.3 In general, the softer tempers have improved ductil-i
48、ty 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 Tensile Requirements, SINOTEInch-pound values are stated in T
49、able 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 under 1212 to 25, both inclover 25315305275110105105202530H0114 hard under 1212 to 25, both inclover 2536034529045042542517014010510B1520HR0114 hard andStress Relievedunder 1212 to 25, both inclover 25360345
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