1、Designation: B927/B927M 17Standard Specification forBrass Rod, Bar, and Shapes1This standard is issued under the fixed designation B927/B927M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in p
2、arentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification establishes requirements for brass rod(round, hexagonal, and octagonal), bar (rectangular andsquare), and shapes of UNS Alloys
3、 C21000, C22000, C23000,C24000, C26000, C26800, C27000, C27400, C27450,C27451, C27453, and C28500.1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. Thevalues stated in each system may not be exact equivalents;therefore, each system shall be
4、used independently of the other.Combining values from the two systems may result in non-conformance with the standard.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopme
5、nt 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 Specification for Free-Cutting Brass Rod, Barand Shapes for Use in Screw MachinesB36/B36M Specification for
6、 Brass Plate, Sheet, Strip, AndRolled BarB121/B121M Specification for Leaded Brass Plate, Sheet,Strip, and Rolled BarB124/B124M Specification for Copper and Copper AlloyForging Rod, Bar, and ShapesB134/B134M Specification for Brass WireB135 Specification for Seamless Brass TubeB249/B249M Specificati
7、on for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgingsB587 Specification for Welded Brass TubeE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE62 Test Methods for Chemical Analysis of Copper andCopperAlloys (Photometric Methods) (Withdrawn 2010)3E47
8、8 Test Methods for Chemical Analysis of Copper Alloys3. General Requirements3.1 The following sections of Specification B249/B249Mconstitute 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 a
9、nd 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,3.1.12 Mill Test Reports,3.1.13 Product Marking,3.1.14 Packaging and Package Marking, and3.1.15 Supplementary Requirements.3.2 In addit
10、ion, when a section with a title identical to thatreferenced in 3.1, above, appears in this specification, itcontains additional requirements that supplement those thatappear in Specification B249/B249M.4. Ordering Information4.1 Include the following information when placing ordersfor product under
11、 this specification, as applicable:4.1.1 ASTM Designation and year of issue,4.1.2 Copper Alloy UNS No. designation,4.1.3 Temper,4.1.4 Cross section (round, hexagonal, octagonal,rectangular, or square),4.1.5 Quantity (total weight, footage, or number of pieces ofeach temper, cross section, and alloy)
12、,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 April 1, 2017. Published April 2017. Originallyapproved in 2003. Last previous edition
13、 approved in 2013 as B927/B927M 13.DOI: 10.1520/B0927_B0927M-17.2For 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 websi
14、te.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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was dev
15、eloped in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14.1.6 Dimensions
16、(diameter or distance between parallelsurfaces, width and thickness, length),4.1.7 Type of edge (square corners, rounded edge, full-rounded edge),4.1.8 How furnished (specific lengths with or without ends),and4.1.9 If product is purchased for agencies of the U.S.Government (Specification B249/B249M)
17、.4.2 The following requirements are available to this speci-fication and should be specified in the contract or purchaseorder when required:4.2.1 Certification (Specification B249/B249M), and4.2.2 Mill Test Report (Specification B249/B249M).5. Materials and Manufacture5.1 Materials:5.1.1 The materia
18、l of manufacture shall be cast billets, logs,or rods of Copper Alloy UNS Nos. C21000, C22000, C23000,C24000, C26000, C26800, C27000, C27400, C27450,C27451, C27453, and C28500 of such purity, soundness, andstructure as to be suitable for processing into the productsprescribed herein.5.2 Manufacture:5
19、.2.1 The products shall be manufactured by such hotworking, cold working, and annealing processing as to producea uniform wrought structure in the finished product.6. Chemical Composition6.1 The material shall conform to the chemical compositionrequirements in Table 1 for the copper alloy UNS No.des
20、ignation specified in the ordering information.6.2 These composition limits do not preclude the presenceof other elements. By agreement between the manufacturer andthe purchaser, limits may be established and analysis requiredfor unnamed elements.6.3 For alloys in which zinc is listed as “remainder,
21、” eithercopper or zinc may be taken as the difference between the sumof results of all other elements determined and 100 %.6.4 When all elements specified for a given alloy in Table 1are determined, the sum of the results shall be as shown in thefollowing table:Alloy UNS Nos.Sum of Results,Percent,
22、MinimumC21000, C22000, C23000, C24000 99.8C26000, C26800, C27000, C27400 99.7C27450, C27451, C27453 99.5C28500 99.17. Temper7.1 The standard tempers for rod and bar described in thisspecification are given in Tables 2 and 3.7.1.1 O60 (Soft Anneal),7.1.2 H01 (14 Hard),7.1.3 H02 (12 Hard), and7.1.4 H0
23、4 (Hard).7.2 Other tempers, and temper for shapes, shall be subject toagreement between the manufacturer and the purchaser.8. Mechanical Property Requirements8.1 Tensile Strength Requirements:8.1.1 Product furnished under this specification shall con-form to the tensile requirements prescribed in Ta
24、bles 2 and 3,when tested in accordance with Test Methods E8/E8M.9. Purchases for U.S. Government9.1 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 s
25、ection of SpecificationB249/B249M.10. Dimensions and Permissible Variations10.1 The dimensions and tolerances for rod, bar, and shapesdescribed by this specification shall be as specified in Specifi-cation B249/B249M with particular reference to the followingtables and related paragraphs.10.1.1 Diam
26、eter or Distance Between Parallel Surfaces:10.1.1.1 RodTable 1.10.1.1.2 BarTables 8 and 10.10.1.2 ShapesDimensional tolerances shall be subject toagreement between the manufacturer and the purchaser.10.1.3 LengthTables 13 and 14.10.1.4 StraightnessTable 16General Use section.10.1.5 Edge contoursPara
27、graph 6.5.TABLE 1 Chemical RequirementsCopper AlloyUNS No.Composition, %Copper Lead, maxIron,maxTin, max Phosphorous Arsenic ZincC21000 94.0-96.0 0.05 0.05 . . . remainderC22000 89.0-91.0 0.05 0.05 . . . remainderC23000 84.0-86.0 0.05 0.05 . . . remainderC24000 78.5-81.5 0.05 0.05 . . . remainderC26
28、000 68.5-71.5 0.07 0.05 . . . remainderC26800 64.0-68.5 0.09 0.05 . . . remainderC27000 63.0-68.5 0.09 0.07 . . . remainderC27400 61.0-64.0 0.09 0.05 . . . remainderC27450 60.0-65.0 0.25 0.35 . . . remainderC27451 61.0-65.0 0.25 0.35 . 0.05-0.20 . remainderC27453 61.563.5 0.25 0.15 0.15 . 0.020.15 r
29、emainderC28500 57.059.0 0.25 0.35 . . . remainderB927/B927M 172TABLE 2 Tensile Requirements (Inch-Pound Units)TemperDiameter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin4 diameter or4 thickness, minCode Name ksi ksi %Copper
30、Alloy UNS No. C21000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 30 10 25H0114 Hard Under1212 to 1, inclover 1363432161412151719H0212 Hard Under1212 to 1, inclover 14240372523208911H04 Hard Under1212 to 1, inclover 1 to 2 incl524845403735579Copper Alloy UNS No. C21000 BarBO60 Soft Ann
31、eal All sizes 30 10 25H0114 Hard Under1212 to 2, incl343214121719Copper Alloy UNS No. C22000 Rod (round, hexagonal, octagonal)060 Soft Anneal All sizes 32 10 25H0114 Hard Under1212 to 1, inclover 1393734201715151719H0212 Hard Under1212 to 1, inclover 150454030272571012H04 Hard Under1212 to 1, inclov
32、er 1 to 2 incl575550403735579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 32 10 25H0114 Hard Under1212 to 2, incl353416151719Copper Alloy UNS No. C23000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 35 10 25H0114 Hard Under1212 to 1, inclover 1444240201715151719H0212 Hard U
33、nder1212 to 1, inclover 150454030272571012H04 Hard Under1212 to 1, inclover 1 to 2 incl636058403735579Copper Alloy UNS No. C23000 BarBO60 Soft Anneal All sizes 35 10 25H0114 Hard Under1212 to 1, inclover 1 to 2 incl403836151311192225H0212 Hard Under1212 to 1, inclover 1 to 2 incl444240201715151719Co
34、pper Alloy UNS No. C24000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 10 30H0114 Hard Under1212 to 1, inclover 1474543252018182022H0212 Hard Under1212 to 1, inclover 1534843333028101315H04 Hard Under1212 to 1, inclover 1 to 2 incl68656045403581012Copper Alloy UNS No. C24000 BarBO60
35、 Soft Anneal All sizes 40 10 30H0114 Hard Under1212 to 1, inclover 1 to 2 incl454341201816202225Copper Alloy UNS No. C26000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 12 30H0114 Hard Under1212 to 1, inclover 1504846302520202428B927/B927M 17311. Test Methods11.1 Chemical Analysis:1
36、1.1.1 In cases of disagreement, determine the compositionusing the following methods:Element Test MethodCopper E478Lead E478 (AA)Iron E478Tin E478Arsenic E62Zinc E478 (Titrimetric)11.1.2 Test methods to be followed for the determination ofelements resulting from contractual or purchase order agree-m
37、ent shall be as agreed upon between the manufacturer orsupplier and the purchaser.12. Keywords12.1 brass bar; brass rod; brass shape; copper-alloy rod;C21000; C22000; C23000; C24000; C26000; C26800;C27000; C27400; C27450; C27451; C27453; C28500TABLE 2 ContinuedTemperDiameter orDistance BetweenParall
38、el Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin4 diameter or4 thickness, minCode Name ksi ksi %H0212 Hard Under1212 to 1, inclover 1575450353230152025H04 Hard Under1212 to 1, inclover 1 to 2 incl706560504540101520Copper Alloy UNS No. C26000 BarBO60 So
39、ft Anneal All sizes 40 12 30H0212 Hard Under1212 to 1, inclover 1 to 2 incl504540251715102020Copper Alloy UNS No. C26800, C27000, C27400, C27450, C27451, C27453 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 12 30H0114 Hard Under1212 to 1, inclover 1474543252018182022H0212 Hard Under1
40、212 to 1, inclover 1534843333028101315H04 Hard Under1212 to 1, inclover 1 to 2 incl68656045403581012Copper Alloy UNS No. C26800, C27000, C27400, C27450, C27451, C27453 BarBO60 Soft Anneal All sizes 40 12 30H0212 Hard Under1212 to 1, inclover 1 to 2 incl504540251715102020Copper Alloy UNS No. C28500 R
41、od (round, hexagonal, octagonal)O60 Soft Anneal All sizes 43 14 20H0114 Hard Under1212 to 1, inclover 1585552242117131520H0212 Hard Under1212 to 1, inclover 169655943362681218H04 Hard Under1212 to 1, inclover 1 to 2, incl79757158494051015Copper Alloy UNS No. C28500 BarBO60 Soft Anneal All sizes 43 1
42、4 20H0212 Hard Under1212 to 1, inclover 1 to 2, incl69655943362681218AIn any case, a minimum gage length of 1 in. shall be used.BFor rectangular bar, the Distance Between Parallel Surfaces refers to thickness.B927/B927M 174TABLE 3 Tensile Requirements (SI Units)TemperDiameter orDistance BetweenParal
43、lel Surfaces, mmTensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin4 diameter or4 thickness, minCode Name MPa MPa %Copper Alloy UNS No. C21000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 205 70 25H0114 Hard Under 1212 to 25, inclover 2525023522011095851517
44、19H0212 Hard Under 1212 to 25, inclover 252902752551701601408911H04 Hard Under 1212 to 25, inclover 25 to 50 incl360330310275255240579Copper Alloy UNS No. C21000 BarBO60 Soft Anneal All sizes 205 70 25H0114 Hard Under 1212 to 50, incl23522095851719Copper Alloy UNS No. C22000 Rod (round, hexagonal, o
45、ctagonal)060 Soft Anneal All sizes 220 70 25H0114 Hard Under 1212 to 25, inclover 25270255235140115105151719H0212 Hard Under 1212 to 25, inclover 2534531027520518517071012H04 Hard Under 1212 to 25, inclover 25 to 50 incl395380345275255240579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 2
46、20 70 25H0114 Hard Under 1212 to 50, incl2402351101051719Copper Alloy UNS No. C23000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 240 70 25H0114 Hard Under 1212 to 25, inclover 25305290275140115103151719H0212 Hard Under 1212 to 25, inclover 2534531027520518517071012H04 Hard Under 1212
47、to 25, inclover 25 to 50 incl435415400275255240579Copper Alloy UNS No. C23000 BarBO60 Soft Anneal All sizes 240 70 25H0114 Hard Under 1212 to 25, inclover 25 to 50 incl2752602501059075192225H0212 Hard Under 1212 to 25, inclover 25 to 50 incl305290275140115105151719Copper Alloy UNS No. C24000 Rod (ro
48、und, hexagonal, octagonal)O60 Soft Anneal All sizes 275 70 30H0114 Hard Under 1212 to 25, inclover 25325310295170140125182022H0212 Hard Under 1212 to 25, inclover 25365330295230205195101315H04 Hard Under 1212 to 25, inclover 25 to 50 incl47045041531027524081012Copper Alloy UNS No. C24000 BarBO60 Sof
49、t Anneal All sizes 275 70 30H0114 Hard Under 1212 to 25, inclover 25 to 50 incl310295285140125110202225Copper Alloy UNS No. C26000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 275 85 30H0114 Hard Under 1212 to 25, inclover 25345330315205170140202428B927/B927M 175APPENDIXES(Nonmandatory Information)X1. METRIC EQUIVALENTSX1.1 The SI unit for strength properties now
