1、Designation: B 453/B 453M 05Standard 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 (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 establish
3、es the requirements forcopper-zinc-lead alloy (leaded-brass) rod, bar, wire, and shapesproduced from Copper Alloys UNS Nos. C33500, C34000,C34500, C35000, C35300, and C35600. These alloys havenominal composition given in Table 1.1.1.1 This product is suitable for applications requiringextensive mach
4、ining 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 as wir
5、e in coils or on reels when requested.1.2 The values stated in either inch-pound units or SI unitsare to be regarded separately as the standard. Within the text,the SI units are shown in brackets. The values stated in eachsystem are not exact equivalents; therefore, each system shallbe used independ
6、ently of the other. Combining values from thetwo systems may result in nonconformance with 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:22.1.1 The follow
7、ing documents in the current Book ofStandards form a part of this specification to the extentreferenced herein:B 16/B 16M Specification for Free-Cutting Brass Rod, Bar,and Shapes for Use in Screw MachinesB 140/B 140M Specification for Copper-Zinc-Lead(Leaded Red Brass or Hardware Bronze) Rod, Bar, a
8、ndShapesB 249/B 249M Specification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes, andForgingsB 250/B 250M Specification for General Requirements forWrought Copper/Alloy WireB 601 Classification for Temper Designations for Copperand Copper AlloysWrought and CastE8 Test
9、Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Mate-rials MetricE18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic MaterialsE 478 Test Methods for Chemical Analysis of CopperAlloys3. General Requirements3.1 The follo
10、wing 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 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 o
11、f Numerical Limits,3.1.9 Inspection,3.1.10 Rejection and Rehearing,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 and Forgings.Current edition approved Oct. 1, 2005. Publis
12、hed November 2005. Originallyapproved in 1967. Last previous edition approved in 2001 as B 453/B 453M 01.2For 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 standar
13、ds Document Summary page onthe ASTM website.TABLE 1 Nominal Composition, %Copper AlloyUNS No.Copper Zinc LeadC33500 63.5 36.0 0.5C34000 63.5 35.4 1.1C34500 63.5 34.5 2.0C35000 62.0 36.6 1.4C35300 62.0 36.0 2.0C35600 61.5 36.0 2.51*A Summary of Changes section appears at the end of this standard.Copy
14、right ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.11 Certification,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
15、referenced in 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 examp
16、le,B 453/B 453M 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: str
17、aight 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 information when r
18、equired: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 compositionrequirements in Table
19、 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. For copper alloys
20、 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 in Table 2 for the
21、 specifiedalloy are determined, the sum of results shall be as follows:Copper Alloy UNS No. Percent, minC33500, C34000, C34500, C35000 99.6C35300, C35600 99.55.3 In the event that heat identification or traceability isrequired, the purchaser shall specify the details desired.NOTE 3Due to the discont
22、inuous 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 giv
23、en inTables 3-6.6.1.1 O60 (soft anneal),6.1.2 H01 (14 hard), and6.1.3 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 Rockwell Hardness Requirements:7.1.1 Pro
24、duct 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 E18.7.1.1.1 Rockwell hardness test results shall be the basis forproduct acceptance for mechanical properties except wh
25、entensile test is so specified in the ordering information (4.2.1).TABLE 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 0.1
26、5 max remainderC35300 61.063.0 1.52.5 0.15 max remainderC35600 60.063.0 2.03.0 0.15 max remainderTABLE 3 Rockwell Hardness Requirements, Inch-PoundANOTESI values are stated in Table 4.Temper DesignationDiameter or DistanceBetween ParallelSurfaces, in.Rockwell B HardnessDetermined on theCross Section
27、 MidwayBetween Surface andCenterCode NameRod and WireO60 soft anneal12 and over 45 maxH0114 hard12 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 inclover 1 to 2, inclover 2
28、457535703565H0212 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 0527.1.1.2 Product that fails to conform to the hard
29、ness require-ments shall be acceptable if tensile strength 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 E
30、8or 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 for the specified temper and sizewhen tested in accordance with Test Methods E8or E8M
31、.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 Supplementary Requirements section of SpecificationsB 249/B 249M and B 250/B 250M.9. Dimens
32、ions and Permissible Variations9.1 The dimensions and tolerances for rod, bar, and shapesin 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 Surface
33、s: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 General use straightness tolerances will apply unlessrod is specified for automat
34、ic 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 product de-scribed by this specification shall be as specified in Table 1 ofSpe
35、cification B 250/B 250M.10. Test Methods10.1 Chemical Analysis:10.1.1 Composition shall be determined, in case of dis-agreement, as follows:Element MethodCopper E 478Iron E 478Lead E 478 (AA)Zinc E 478 (titrimetric)10.1.2 Test method(s) to be used for the determination ofelement(s) required by contr
36、actual or purchase order agreementshall 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;UN
37、S No. C34500; UNS No. C35000; UNS No. C35300; UNSNo. C35600TABLE 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 Na
38、meRod and WireO60 soft anneal 12 and over 45 maxH0114 hard 12 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, inclover 50457535703565H0212 hard
39、 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 053TABLE 5 Tensile Requirements, Inch-PoundNOTESI values are stated
40、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 1464440161515202530H0114 h
41、ard under1212 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 1484540252015101520H0212 hard under1212 to 1, both inclover 1504
42、540251715101520AIn 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 Parallel Surfaces refers to thickness.TABLE 6 Tensile R
43、equirements, 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 under 121
44、2 to 25, both inclover 25315305275110105105202530H0114 hard under 1212 to 25, both inclover 2536034529045042542517014010510B1520H0212 hard under 1212 to 25, both inclover 253953803455554854251701701407C1015BarDO60 soft anneal under 1212 to 25, both inclover 25315305275110105105202525H0114 hard under
45、 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
46、 4 % min.DFor rectangular bar, the Distance Between Parallel Surfaces refers to thickness.B 453/B 453M 054APPENDIX(Nonmandatory Information)X1. ADDITIONAL INFORMATIONX1.1 Selection of the alloy and temper best suited for theparticular application involves a compromise between desiredhardness of the
47、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.X1.1.3
48、In general, the softer tempers have improved ductil-ity and malleability but are less able to withstand unbalancedtool pressures.SUMMARY OF CHANGESCommittee B05 has identified the location of selected changes to this standard since the last issue(B 453/B 453M 01) that may impact the use of this stan
49、dard. (Approved Oct. 1, 2005.)(1) Modified the Mechanical Property Requirements section toallow tensile properties to be the acceptance criteria wherethere is conflict with the hardness results.(2) Added Table 4 and Table 6 to delineate inch-pound and SImechanical property requirements.(3) Revised section 9.1.4 to clarify rod straightness tolerances.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mention
