1、Designation: B927/B927M 09B927/B927M 13Standard 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.
2、A number in parentheses 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 and square),and shapes
3、 of UNSAlloys C21000, C22000, C23000, C24000, C26000, C26800, C27000, C27400, C27450, and C27450.C27451.1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. The values statedin each system may not be exact equivalents; therefore, each system sh
4、all be used independently of the other. Combining valuesfrom 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, Bar and Shapes for Use in Screw MachinesB36/B36M Specification for Brass Plate, S
5、heet, Strip, And Rolled BarB121/B121M Specification for Leaded Brass Plate, Sheet, Strip, and Rolled BarB124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and ShapesB134/B134M Specification for Brass WireB135 Specification for Seamless Brass TubeB249/B249M Specification for Gener
6、al Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and ForgingsB587 Specification for Welded Brass TubeE8E8/E8M Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Materials Metric (Withdrawn 2008)3E478 Test Methods for Chemical An
7、alysis of Copper Alloys3. General Requirements3.1 The following sections of Specification B249/B249M constitute 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 Pre
8、paration,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.1 This specification is under the jurisdi
9、ction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod, Bar,Wire, Shapes and Forgings.Current edition approved Oct. 1, 2009Oct. 1, 2013. Published November 2009November 2013. Originally approved in 2003. Last previous edition approved in
10、20082009as B927/B927M 08a.B927/B927M 09. DOI: 10.1520/B0927_B0927M-09.10.1520/B0927_B0927M-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document
11、Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recomm
12、ends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700
13、, West Conshohocken, PA 19428-2959. United States13.2 In addition, when a section with a title identical to that referenced in 3.1, above, appears in this specification, it containsadditional requirements that supplement those that appear in Specification B249/B249M.4. Ordering Information4.1 Includ
14、e the following information when placing orders for product under 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, foo
15、tage, or number of pieces of each temper, cross section, and alloy),4.1.6 Dimensions (diameter or distance between parallel surfaces, 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.
16、9 If product is purchased for agencies of the U.S. Government (Specification B249/B249M).4.2 The following requirements are available to this specification and should be specified in the contract or purchase order whenrequired:4.2.1 Certification (Specification B249/B249M), and4.2.2 Mill Test Report
17、 (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, C22000, C23000,C24000, C26000, C26800, C27000, C27400, C27450 or C27450C27451 of such purity, soundness, and structure to be s
18、uitable forprocessing into the products prescribed herein.5.2 Manufacture:5.2.1 The products shall be manufactured by such hot working, cold working, and annealing processing as to produce a uniformwrought structure in the finished product.6. Chemical Composition6.1 The material shall conform to the
19、 chemical composition requirements in Table 1 for the copper alloy UNS No. designationspecified in the ordering information.6.2 These composition limits do not preclude the presence of other elements. By agreement between the manufacturer and thepurchaser, limits may be established and analysis requ
20、ired for unnamed elements.TABLE 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 0.05 remainderC24000 78.5-81.5 0.05 0.05 remainderC26000 68.5-71.5 0.07 0.05 remainderC2
21、6800 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 remainderTABLE 1 Chemical RequirementsCopper AlloyUNS No.Composition, %Copper Lead, max Iron,max Phosphorous ZincC21000 94.0-96.0 0.05 0.05 . remainderC22000 89.0-91.0
22、 0.05 0.05 . remainderC23000 84.0-86.0 0.05 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 . remainderC27451 61.0-
23、65.0 0.25 0.35 0.05-0.20 remainderB927/B927M 1326.3 For alloys in which zinc is listed as “remainder,” either copper or zinc may be taken as the difference between the sum ofresults of all other elements determined and 100 %.6.4 When all elements specified for a given alloy in Table 1 are determined
24、, 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 99.5C27450, C27451 99.57. Temper7.1 The standard tempers for rod and bar described in this specification are giv
25、en 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 to agreement between the manufacturer and the purchaser.8. Mechanical Property Requirements8.1 Tensile Strength Requirements : Requirem
26、ents:8.1.1 Product furnished under this specification shall conform to the tensile requirements prescribed in Tables 2 and 3, whentested in accordance with Test Methods E8E8/E8M or E8M.9. Purchases for U.S. Government9.1 When specified in the contract or purchase order, product purchased for agencie
27、s of the U.S. government shall conform tothe special government requirements stipulated in the Supplementary Requirements section of Specification B249/B249M.10. Dimensions and Permissible Variations10.1 The dimensions and tolerances for rod, bar, and shapes described by this specification shall be
28、as specified in SpecificationB249/B249M with particular reference to the following tables 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 subject to agreement between the manufac
29、turer 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 composition using the following methods:Element Test MethodCopper E478Lead E478
30、 (AA)Iron E478Zinc E478 (Titrimetric)11.1.2 Test methods to be followed for the determination of elements resulting from contractual or purchase order agreementshall be as agreed upon between the manufacturer or supplier and the purchaser.12. Keywords12.1 brass bar; brass rod; brass shape; copper-al
31、loy rod; C21000; C22000; C23000; C24000; C26000; C26800; C27000;C27400; C27450C27450; C27451B927/B927M 133TABLE 2 Tensile Requirements (Inch-Pound Units)TemperDiameter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationA in4 diameter
32、or4 thickness, minCode Name ksi ksi %Copper Alloy UNS No. C21000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 30 10 25H01 14 Hard Under 1212 to 1, inclover 1363432161412151719H02 12 Hard Under 1212 to 1, inclover 14240372523208911H04 Hard Under 1212 to 1, inclover 1 to 2 incl5248454037
33、35579Copper Alloy UNS No. C21000 BarBO60 Soft Anneal All sizes 30 10 25H01 14 Hard Under 1212 to 2, incl343214121719Copper Alloy UNS No. C22000 Rod (round, hexagonal, octagonal)060 Soft Anneal All sizes 32 10 25H01 14 Hard Under 1212 to 1, inclover 1393734201715151719H02 12 Hard Under 1212 to 1, inc
34、lover 150454030272571012H04 Hard Under 1212 to 1, inclover 1 to 2 incl575550403735579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 32 10 25H01 14 Hard Under 1212 to 2, incl353416151719Copper Alloy UNS No. C23000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 35 10 25H01 14 Ha
35、rd Under 1212 to 1, inclover 1444240201715151719H02 12 Hard Under 1212 to 1, inclover 150454030272571012H04 Hard Under 1212 to 1, inclover 1 to 2 incl636058403735579Copper Alloy UNS No. C23000 BarBO60 Soft Anneal All sizes 35 10 25H01 14 Hard Under 1212 to 1, inclover 1 to 2 incl403836151311192225H0
36、2 12 Hard Under 1212 to 1, inclover 1 to 2 incl444240201715151719Copper Alloy UNS No. C24000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 10 30H01 14 Hard Under 1212 to 1, inclover 1474543252018182022H02 12 Hard Under 1212 to 1, inclover 1534843333028101315H04 Hard Under 1212 to 1,
37、inclover 1 to 2 incl68656045403581012Copper Alloy UNS No. C24000 BarBO60 Soft Anneal All sizes 40 10 30H01 14 Hard Under 1212 to 1, inclover 1 to 2 incl454341201816202225Copper Alloy UNS No. C26000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 12 30H01 14 Hard Under 1212 to 1, inclov
38、er 1504846302520202428B927/B927M 134TABLE 2 ContinuedTemperDiameter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationA in4 diameter or4 thickness, minCode Name ksi ksi %H02 12 Hard Under 1212 to 1, inclover 1575450353230152025H04 Ha
39、rd Under 1212 to 1, inclover 1 to 2 incl706560504540101520Copper Alloy UNS No. C26000 BarBO60 Soft Anneal All sizes 40 12 30H02 12 Hard Under 1212 to 1, inclover 1 to 2 incl504540251715102020Copper Alloy UNS No. C26800, C27000, C27400, C27450 Rod (round, hexagonal, octagonal)Copper Alloy UNS No. C26
40、800, C27000, C27400, C27450, C27451 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 12 30H01 14 Hard Under 1212 to 1, inclover 1474543252018182022H02 12 Hard Under 1212 to 1, inclover 1534843333028101315H04 Hard Under 1212 to 1, inclover 1 to 2 incl68656045403581012Copper Alloy UNS No.
41、 C26800, C27000, C27400, C27450 BarBCopper Alloy UNS No. C26800, C27000, C27400, C27450, C27451 BarBO60 Soft Anneal All sizes 40 12 30H02 12 Hard Under 1212 to 1, inclover 1 to 2 incl504540251715102020A In any case, a minimum gage length of 1 in. shall be used.B For rectangular bar, the Distance Bet
42、ween Parallel Surfaces refers to thickness.B927/B927M 135TABLE 3 Tensile Requirements (SI Units)TemperDiameter orDistance BetweenParallel Surfaces, mmTensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationA in4 diameter or4 thickness, minCode Name MPa MPa %Copper Alloy UNS No.
43、C21000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 205 70 25H01 14 Hard Under 1212 to 25, inclover 252502352201109585151719H02 12 Hard Under 1212 to 25, inclover 252902752551701601408911H04 Hard Under 1212 to 25, inclover 25 to 50 incl360330310275255240579Copper Alloy UNS No. C21000 B
44、arBO60 Soft Anneal All sizes 205 70 25H01 14 Hard Under 1212 to 50, incl23522095851719Copper Alloy UNS No. C22000 Rod (round, hexagonal, octagonal)060 Soft Anneal All sizes 220 70 25H01 14 Hard Under 1212 to 25, inclover 25270255235140115105151719H02 12 Hard Under 1212 to 25, inclover 25345310275205
45、18517071012H04 Hard Under 1212 to 25, inclover 25 to 50 incl395380345275255240579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 220 70 25H01 14 Hard Under 1212 to 50, incl2402351101051719Copper Alloy UNS No. C23000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 240 70 25H01 14
46、 Hard Under 1212 to 25, inclover 25305290275140115103151719H02 12 Hard 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 25H01 14 Hard Under 1212 to 25, inclover 2
47、5 to 50 incl2752602501059075192225H02 12 Hard Under 1212 to 25, inclover 25 to 50 incl305290275140115105151719Copper Alloy UNS No. C24000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 275 70 30H01 14 Hard Under 1212 to 25, inclover 25325310295170140125182022H02 12 Hard Under 1212 to 25,
48、 inclover 25365330295230205195101315H04 Hard Under 1212 to 25, inclover 25 to 50 incl47045041531027524081012Copper Alloy UNS No. C24000 BarBO60 Soft Anneal All sizes 275 70 30H01 14 Hard Under 1212 to 25, inclover 25 to 50 incl310295285140125110202225Copper Alloy UNS No. C26000 Rod (round, hexagonal
49、, octagonal)O60 Soft Anneal All sizes 275 85 30B927/B927M 136APPENDIXES(Nonmandatory Information)X1. METRIC EQUIVALENTSX1.1 The SI unit for strength properties now shown is in accordance with the International System of Units (SI). The derived SIunit for force is the newton (N), which is defined as that force which when applied to a body having a mass of one kilogram givesit an acceleration of one metre per second squared (N = kgm/s2). The derived SI unit for pressure or
