1、Designation: B 927 08Standard Specification forBrass Rod, Bar, and Shapes1This standard is issued under the fixed designation B 927; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses
2、 indicates the year of last reapproval. Asuperscript epsilon (e) 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 C21000,
3、C22000, C23000,C24000, C26000, C26800, C27000, and C27400.1.2 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 the other.Combinin
4、g values from the two systems may result in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:2B 16/B 16M Specification for Free-Cutting Brass Rod, Barand Shapes for Use in Screw MachinesB 36/B 36M Specification for Brass Plate, Sheet, Strip, AndRolled BarB 121/B 121M Speci
5、fication for Leaded Brass Plate, Sheet,Strip, and Rolled BarB 124/B 124M Specification for Copper and Copper AlloyForging Rod, Bar, and ShapesB 134/B 134M Specification for Brass WireB 135 Specification for Seamless Brass TubeB 249/B 249M Specification for General Requirements forWrought Copper and
6、Copper-Alloy Rod, Bar, Shapes andForgingsB 587 Specification for Welded Brass TubeE8 Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic Mate-rials Metric3E 478 Test Methods for Chemical Analysis of CopperAlloys3. General Requirements3.1 The followi
7、ng sections of Specification B 249/B 249Mconstitute 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
8、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 addition, when a section with a title identical to thatreferenced in 3.1 appears in this speci
9、fication, it containsadditional requirements that supplement those that appear inSpecification B 249/B 249M.4. Ordering Information4.1 Include the following information in orders for product: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 sect
10、ion (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, length),4.1.7 Type of edge (square corners, rounded edg
11、e, full-rounded edge),4.1.8 How furnished (specific lengths with or without ends),and4.1.9 When material is purchased for agencies of the U.S.government (Specification B 249/B 249M).4.2 The following requirements are available to this speci-fication and should be specified in the contract or purchas
12、eorder when required: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 15, 2008. Published May 2008. Originallyapproved in 2003. La
13、st previous edition approved in 2003 as B 927 03.2For 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 website.3Withdrawn.1
14、*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.2.1 Certification (Specification B 249/B 249M), and4.2.2 Mill Test Report (Specification B 249/B 249M).5. Materials an
15、d Manufacture5.1 Material:5.1.1 The material shall be made from cast billets, logs, orrods of Copper Alloy UNS Nos. C21000, C22000, C23000,C24000, C26000, C26800, C27000, or C274000 of such purity,soundness, and structure to be suitable for processing into thedesired product.5.2 Manufacture:5.2.1 Th
16、e 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 composi-tional requirements specified in Table 1 for the copper alloyspec
17、ified in the ordering information.6.1.1 When all elements specified for a given alloy in Table1 are determined, their sum shall be as follows:Alloy UNS Nos.Sum,Percent, MinimumC21000, C22000, C23000, C24000 99.8C26000, C26800, C27000, C27400 99.76.2 These composition limits do not preclude the prese
18、nceof other elements. Limits may be established and analysisrequired for unnamed elements by agreement between themanufacturer and the purchaser.6.3 Zinc, listed as the “remainder,” is the difference betweenthe sum of results for all elements determined and 100 %.7. Temper7.1 The standard tempers fo
19、r 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 other products includingshapes, shall be subject to agreement between the manufacturerand the purchaser.8. M
20、echanical Property Requirement8.1 Tensile Strength Requirements:8.1.1 Product shall conform to the requirements of Tables 2and 3 when tested in accordance with Test Methods E8orE8M.9. Purchases for U.S. Government9.1 When specified in the contract or purchase order,product purchased for agencies of
21、the U.S. government shallconform to the special government requirements stipulated inthe Supplementary Requirements section of SpecificationB 249/B 249M.10. Dimensions, Mass, and Permissible Variations10.1 The dimensions and tolerances for rod, bar, and shapesdescribed by this specification shall be
22、 as specified in Specifi-cation B 249/B 249M with particular reference to the followingtables in that specification: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 toagreement between the manuf
23、acturer and the purchaser.10.1.3 LengthTables 13 and 14.10.1.4 StraightnessTable 16General Use section.10.1.5 AnglesAll regular polygonal sections shall havesubstantially exact angles and, unless otherwise specified,sharp corners.11. Test Methods11.1 Chemical Analysis:11.1.1 Composition shall be det
24、ermined, in case of disagree-ment, as follows:Element Test MethodCopper E 478Lead E 478 (AA)Iron E 478Zinc E 478 (Titrametric)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 o
25、rsupplier and the purchaser.12. Keywords12.1 brass bar; brass rod; brass shape; copper-alloy rod;C21000; C22000; C23000; C24000; C26000; C26800;C27000; C27400TABLE 1 Chemical RequirementsCopper AlloyUNS No.Composition, %Copper Lead, max Iron, max ZincC21000 94.0-96.0 0.05 0.05 remainderC22000 89.0-9
26、1.0 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 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 remainderB927082TABLE 2 Tensile Requirements (Inch-Pound Units)TemperD
27、iameter 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,
28、inclover 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,
29、 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, inclover 1 to 2 incl575550403735579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 32 10 25H0114 Hard Under1212
30、 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 Under1212 to 1, inclover 150454030272571012H04 Hard Under1212 to 1, inclover 1 to 2 incl636058403735579Copper Alloy
31、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 incl444240201715151719Copper Alloy UNS No. C24000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 10 30H0114 Hard Under1212 t
32、o 1, inclover 1474543252018182022H0212 Hard Under1212 to 1, inclover 1534843333028101315H04 Hard Under1212 to 1, inclover 1 to 2 incl68656045403581012B927083TABLE 2 ContinuedTemperDiameter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElon
33、gationAin43 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 Unde
34、r1212 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 Allo
35、y UNS No. C26800, C27000, C27400 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 UNS No. C26800,
36、 C27000, C27400 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.B927084TABLE 3 Tensile Requirements (SI U
37、nits)TemperDiameter orDistance BetweenParallel Surfaces, in.Tensile 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 sizes 205 70 25H0114 Hard Und
38、er 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 50, incl23522095851719Copper
39、 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 incl395380345275255240579Copper Alloy
40、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 Under 1212 to 25, inclover
41、 2534531028520518517071012H04 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 25 to 50 incl3052902751401
42、15105151719Copper 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 to 50 incl4704504153102752
43、4081012B927085APPENDIXES(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 which when applied to a body having a
44、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 ksi = 6 894 757 Pa the metric equiv
45、a-lents are expressed as megapascal (MPa), which is the same asMN/m2and N/mm2.TABLE 3 ContinuedTemperDiameter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin43 diameter or43 thickness, minCode Name MPa MPa %Copper Alloy UNS No.
46、 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 25345330315205170140202428H0212 Hard Under 1
47、212 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 Alloy UNS No. C26800, C27000, C2
48、7400 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
49、, C27000, C27400 BarBO60 Soft Anneal All sizes 275 85 30H0212 Hard Under 1212 to 25, inclover 25 to 50 incl345310275170115105102020AIn any case, a minimum gage length of 25 mm shall be used.BFor rectangular bar, the Distance Between Parallel Surfaces refers to thickness.B927086X2. RATIONALE (COMMENTARY)X2.1 This specification is a new Standard Specification forBrass Rod, Bar, and Shapes. Federal Specification QQ-B-626,which covered a number of binary brass and leaded brassalloys in
