1、Designation: B927/B927M 09Standard 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, and C27450.1.2 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 used independently of t
4、he other.Combining values from the two systems may result in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:2B16/B16M Specification for Free-Cutting Brass Rod, Barand Shapes for Use in Screw MachinesB36/B36M Specification for Brass Plate, Sheet, Strip, AndRolled BarB121/
5、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 Specification for General Requirements forWrought Copper
6、and Copper-Alloy Rod, Bar, Shapes andForgingsB587 Specification for Welded Brass TubeE8 Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Materi-als Metric3E478 Test Methods for ChemicalAnalysis of CopperAlloys3. General Requirements3.1 The follow
7、ing 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 and Retests,3.1.6 Specimen Preparation,3.1.7 Test Methods,3.1.8 Significance of Numerical L
8、imits,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 addition, when a section with a title identical to thatreferenced in 3.1, above, appears in thi
9、s 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 this specification, as applicable:4.1.1 ASTM Designation and year of issue,4.1.2 Copper A
10、lloy UNS No. designation,4.1.3 Temper,4.1.4 Cross section (round, hexagonal, octagonal, rectangu-lar, or square),4.1.5 Quantity (total weight, footage, or number of pieces ofeach temper, cross section, and alloy),4.1.6 Dimensions (diameter or distance between parallelsurfaces, width and thickness, l
11、ength),4.1.7 Type of edge (square corners, rounded edge, full-rounded edge),4.1.8 How furnished (specific lengths with or without ends),and1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,Bar,
12、 Wire, Shapes and Forgings.Current edition approved Oct. 1, 2009. Published November 2009. Originallyapproved in 2003. Last previous edition approved in 2008 as B927/B927M 08a.DOI: 10.1520/B0927_B0927M-09.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer S
13、ervice 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 standard is referencedon www.astm.org.1*A Summary of Changes section appears at the end of this sta
14、ndard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.9 If product is purchased for agencies of the U.S.Government (Specification B249/B249M).4.2 The following requirements are available to this speci-fication and should be specif
15、ied 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 material of manufacture shall be cast billets, logs,or rods of Copper Alloy UNS Nos. C21000, C22
16、000, C23000,C24000, C26000, C26800, C27000, C27400, or C27450 ofsuch purity, soundness, and structure to be suitable for pro-cessing into the products prescribed herein.5.2 Manufacture:5.2.1 The products shall be manufactured by such hotworking, cold working, and annealing processing as to producea
17、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.designation specified in the ordering information.6.2 These composition limits do not preclude the presenceof other e
18、lements. 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,” eithercopper or zinc may be taken as the difference between the sumof results of all other elements determined a
19、nd 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, MinimumC21000, C22000, C23000, C24000 99.8C26000, C26800, C27000, C27400 99.7C27450 99.57. Temper7.1 The standard
20、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 H04 (Hard).7.2 Other tempers, and temper for shapes, shall be subject toagreement between the manufacturer and the purchaser.8. Mechanical Prop
21、erty Requirements8.1 Tensile Strength Requirements:8.1.1 Product furnished under this specification shall con-form to the tensile requirements prescribed in Tables 2 and 3,when tested in accordance with Test Methods E8 or E8M.9. Purchases for U.S. Government9.1 When specified in the contract or purc
22、hase order,product purchased for agencies of the U.S. government shallconform to the special government requirements stipulated inthe Supplementary Requirements section of SpecificationB249/B249M.10. Dimensions and Permissible Variations10.1 The dimensions and tolerances for rod, bar, and shapesdesc
23、ribed by this specification shall be as specified in Specifi-cation B249/B249M with particular reference to the followingtables and related paragraphs.10.1.1 Diameter 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 su
24、bject 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 contoursParagraph 6.5.11. Test Methods11.1 Chemical Analysis:11.1.1 In cases of disagreement, determine the compositionusing the following methods:Ele
25、ment Test MethodCopper E478Lead E478 (AA)Iron E478Zinc E478 (Titrimetric)11.1.2 Test methods to be followed for the determination ofelements resulting from contractual or purchase order agree-ment shall be as agreed upon between the manufacturer orsupplier and the purchaser.12. Keywords12.1 brass ba
26、r; brass rod; brass shape; copper-alloy rod;C21000; C22000; C23000; C24000; C26000; C26800;C27000; C27400; C27450TABLE 1 Chemical RequirementsCopper AlloyUNS No.Composition, %Copper Lead, max Iron, max 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
27、0.05 remainderC24000 78.5-81.5 0.05 0.05 remainderC26000 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 remainderB927/B927M 092TABLE 2 Tensile Requirements (Inch-Pound Units)TemperDia
28、meter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin43 diameter or43 thickness, minCode Name ksi ksi %Copper Alloy UNS No. C21000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 30 10 25H0114 Hard Under1212 to 1, in
29、clover 1363432161412151719H0212 Hard Under1212 to 1, inclover 14240372523208911H04 Hard Under1212 to 1, inclover 1 to 2 incl524845403735579Copper Alloy UNS No. C21000 BarBO60 Soft Anneal All sizes 30 10 25H0114 Hard Under1212 to 2, incl343214121719Copper Alloy UNS No. C22000 Rod (round, hexagonal, o
30、ctagonal)060 Soft Anneal All sizes 32 10 25H0114 Hard Under1212 to 1, inclover 1393734201715151719H0212 Hard Under1212 to 1, inclover 150454030272571012H04 Hard Under1212 to 1, inclover 1 to 2 incl575550403735579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 32 10 25H0114 Hard Under1212 t
31、o 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 Under1212 to 1, inclover 150454030272571012H04 Hard Under1212 to 1, inclover 1 to 2 incl636058403735579Copper Alloy UN
32、S 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 incl444240201715151719Copper Alloy UNS No. C24000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 10 30H0114 Hard Under1212 to
33、1, inclover 1474543252018182022H0212 Hard Under1212 to 1, inclover 1534843333028101315H04 Hard Under1212 to 1, inclover 1 to 2 incl68656045403581012B927/B927M 093TABLE 2 ContinuedTemperDiameter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, mi
34、nElongationAin43 diameter or43 thickness, minCode Name ksi ksi %Copper Alloy UNS No. C24000 BarBO60 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
35、 Under1212 to 1, inclover 1504846302520202428H0212 Hard Under1212 to 1, inclover 1575450353230152025H04 Hard Under1212 to 1, inclover 1 to 2 incl706560504540101520Copper Alloy UNS No. C26000 BarBO60 Soft Anneal All sizes 40 12 30H0212 Hard Under1212 to 1, inclover 1 to 2 incl504540251715102020Copper
36、 Alloy UNS No. C26800, C27000, C27400, C27450 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 12 30H0114 Hard Under1212 to 1, inclover 1474543252018182022H0212 Hard Under1212 to 1, inclover 1534843333028101315H04 Hard Under1212 to 1, inclover 1 to 2 incl68656045403581012Copper Alloy UN
37、S No. C26800, C27000, C27400, C27450 BarBO60 Soft Anneal All sizes 40 12 30H0212 Hard Under1212 to 1, inclover 1 to 2 incl504540251715102020AIn 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 094TABLE
38、3 Tensile Requirements (SI Units)TemperDiameter orDistance BetweenParallel Surfaces, mmTensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin43 diameter or43 thickness, minCode Name MPa MPa %Copper Alloy UNS No. C21000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All si
39、zes 205 70 25H0114 Hard Under 1212 to 25, inclover 252502352201109585151719H0212 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 5
40、0, incl23522095851719Copper Alloy UNS No. C22000 Rod (round, hexagonal, octagonal)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 incl3953803
41、45275255240579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 220 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
42、 Under 1212 to 25, inclover 2534531027520518517071012H04 Hard Under 1212 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
43、 25 to 50 incl305290275140115105151719Copper Alloy UNS No. C24000 Rod (round, 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
44、 to 50 incl47045041531027524081012B927/B927M 095APPENDIXES(Nonmandatory Information)X1. METRIC EQUIVALENTSX1.1 The SI unit for strength properties now shown is inaccordance with the International System of Units (SI). Thederived SI unit for force is the newton (N), which is defined asthat force whic
45、h when applied to a body having a mass of onekilogram gives it an acceleration of one metre per secondsquared (N = kgm/s2). The derived SI unit for pressure orstress is the newton per square metre (N/m2), which has beennamed the pascal (Pa) by the General Conference on Weightsand Measures. Since 1 k
46、si = 6 894 757 Pa the metric equiva-lents are expressed as megapascal (MPa), which is the same asMN/m2and N/mm2.TABLE 3 ContinuedTemperDiameter orDistance BetweenParallel Surfaces, mmTensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin43 diameter or43 thickness, minCode N
47、ame MPa MPa %Copper Alloy UNS No. C24000 BarBO60 Soft 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 25345330315
48、205170140202428H0212 Hard Under 1212 to 25, inclover 25395370345240220205152025H04 Hard Under 1212 to 25, inclover 25 to 50 incl485450415345310275101520Copper Alloy UNS No. C26000 BarBO60 Soft Anneal All sizes 275 85 30H0212 Hard Under 1212 to 25, inclover 25 to 50 incl345310275170115105102020Copper
49、 Alloy UNS No. C26800, C27000, C27400, C27450 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 275 85 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. C26800, C27000, C27400, C27450 BarBO60 Soft Anneal All sizes 275 85 30H0212 Hard Under 1212 to 25, inclover 25 to 50 incl345310275170115105102020AI
