1、Designation: B453/B453M 11 (Reapproved 2017)Standard 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 r
2、evision, the year 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 U.S. Department of Defense.1. Scope*1.1 This speci
3、fication establishes the 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 ap
4、plications requiringextensive machining before such cold-forming operations asswaging, flaring, severe knurling, or thread rolling.NOTE 1Refer to Appendix X1 for additional applications information.1.1.2 Typically, product made to this specification is fur-nished as straight lengths. Sizes12 in. 12
5、mm and under maybe furnished 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
6、. Combiningvalues from the 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.1.3 This international standard was developed in accor-dance with internationally
7、 recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B16/B16M Specif
8、ication for Free-Cutting Brass Rod, Barand Shapes 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 Speci
9、fication for General Requirements forWrought Copper Alloy WireB601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE62 Test Methods for Chemica
10、l Analysis of Copper andCopperAlloys (Photometric Methods) (Withdrawn 2010)3E478 Test Methods for Chemical Analysis of Copper Alloys3. General Requirements3.1 The following sections of Specifications B249/B249Mand B250/B250M are a part of this specification:3.1.1 Terminology,3.1.2 Materials and Manu
11、facture,3.1.3 Workmanship, Finish, and Appearance,3.1.4 Sampling,3.1.5 Number of Tests and Retests,3.1.6 Specimen Preparation,1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,Bar, Wire, Shapes
12、 and Forgings.Current edition approved Oct. 1, 2017. Published October 2017. Originallyapproved in 1967. Last previous edition approved in 2011 as B453/B453M 111.DOI: 10.1520/B0453_B0453M-11R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at s
13、erviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe 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 Int
14、ernational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards
15、, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13.1.7 Test Methods,3.1.8 Significance of Numerical Limits,3.1.9 Inspection,3.1.10 Rejection and Rehearing,3.1.11 Certification,3.1.12 Mill Test Report,3.1.13 Packaging and Package Marking
16、, and3.1.14 Supplementary Requirements.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 which supplement those ap-pearing in Specifications B249/B249M and B250/B250M.4. Ordering Information4.1 In
17、clude the following information in orders for product:4.1.1 ASTM designation and year 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.
18、6 Dimensions (diameter or distance between parallelsurfaces, width, thickness),4.1.7 How 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
19、 U.S.Government.4.2 The following are options and should be specified in theordering information 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)
20、.5. Chemical Composition5.1 The material shall conform to the chemical compositionrequirements 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 analysis
21、required for unnamed elements by agreement between themanufacturer and the purchaser. 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 val
22、ue shall conform to the requirements given inTable 2.5.2 When all the named elements 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 h
23、eat identification or traceability isrequired, the purchaser shall specify the details 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.
24、Temper6.1 The standard tempers, as defined in Classification B601,for products described 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.
25、2 Other tempers, and temper for other products includingshapes, shall be subject to 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 shal
26、l conform to therequirements of Table 3 and Table 4 when tested in accordancewith 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 tha
27、t fails to conform to the hardness require-ments shall be acceptable if tensile strength requirements are inconformance.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.
28、7 2.5C35350 62.0 34.5 3.2C35600 61.5 36.0 2.5TABLE 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 remainderC35000 61.063.0 0.82.0 0.15 max remainderC35300
29、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 remainderA0.020.25 AsBPb may be reduced to 1.0 % by agreement.CIncludes nickel 0.050.30, phosphorus 0.050.20, tin 0.30 max.B453/B453M 11 (2017)2TABLE 3 Rockwell
30、Hardness Requirements, Inch-PoundANOTE 1SI values are stated in Table 4.Temper DesignationDiameter or DistanceBetween ParallelSurfaces, in.Rockwell B HardnessDetermined on theCross Section MidwayBetween Surface andCenter (All Alloysexcept C35350)Rockwell HardnessDetermined on theCross Section Midway
31、Between 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 to 2, inclover 26080507
32、54070688562805370BarBO60 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 than12 in.BFor rectangular bar, th
33、e Distance Between Parallel Surfaces refers to thickness.TABLE 4 Rockwell Hardness Requirements, SIANOTE 1Inch-pound values are stated in Table 3.Temper DesignationDiameter or DistanceBetween ParallelSurfaces, mmRockwell B HardnessDetermined on theCross Section MidwayBetween Surface andCenter (All A
34、lloysexcept 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 Relieved12 to 25, both inclover 25 to 50,
35、 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, inclover 50458540803570688562805370ARockw
36、ell hardness requirements are not established for diameters less than 12 mm.BFor rectangular bar, the Distance Between Parallel Surfaces refers to thickness.B453/B453M 11 (2017)37.2 Tensile Strength Requirements:7.2.1 Product with diameter or distance between parallelsurfaces under12 in. 12 mm shall
37、 conform to the require-ments of Tables 3-6 when tested in accordance with TestMethods E8/E8M.7.2.2 When specified in the contract or purchase 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
38、 for the specified temper and sizewhen tested in accordance with Test Methods E8/E8M.8. Purchases for U.S. Government8.1 When specified in the contract or purchase order,product purchased for agencies of the U.S. Government shallconform to the special government requirements stipulated inthe Supplem
39、entary Requirements section of SpecificationsB249/B249M and B250/B250M.9. Dimensions and Permissible Variations9.1 The dimensions and tolerances for rod, bar, and shapesin accordance with this specification shall be as specified inSpecification B249/B249M with particular reference to thefollowing ta
40、bles 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 the manufacturer and the purchaser.9.1.3 LengthTables 13 and 14.9.1.4 StraightnessTable 16.9.1.4.1 Gen
41、eral 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 exact angles and, unless otherwise specified,sharp corners.9.2 The dimensions and tolerances for wire p
42、roduct 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 ofdisagreement, as follows:Element MethodArsenic E62Copper E478Iron E478Lead E478 (AA)Nickel E478Phosphorus E62Ti
43、n E478Zinc E478 (titrimetric)TABLE 5 Tensile Requirements, Inch-PoundNOTE 1SI values are stated in Table 6.Temper DesignationDiameter or Distance BetweenParallel Surfaces, in.Tensile Strength, ksiYield Strength at 0.5 %Extension Under Load, minElongationAin4 Diameter or4 Thickness, min, %Code Name m
44、in max ksiRod and WireO60 soft anneal under1212 to 1, both inclover 1464440161515202530H0114 hard under1212 to 1, both inclover 152504265626225201510B1520HR0114 hard andStress Relievedunder1212 to 1, both inclover 152504265626225201510B1520H0212 hard under1212 to 1, both inclover 1575550807062252520
45、7C1015BarDO60 soft anneal under1212 to 1, both inclover 1464440161515202525H0114 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
46、 shall be 7 % min.CFor product furnished as wire, the elongation shall be 4 % min.DFor rectangular bar, the Distance Between Parallel Surfaces refers to thickness.B453/B453M 11 (2017)410.1.2 Test method(s) to be used for the determination ofelement(s) required by contractual or purchase order agreem
47、entshall be as agreed upon between the manufacturer 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; U
48、NS No. C35300; UNSNo. C35330; UNS No. C35350; UNS No. C35600APPENDIX(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 or
49、malleability. 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-ity and malleability but are less able to withstand unbalancedtool pressures.X1.1.4 Arsenic is added to improve corrosion resistance due
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