1、Designation: B 927 03Standard 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. Scope1.1 This specification establishes requirements for brass rod(round, hexagonal, and octagonal), bar (rectangular andsquare), and shapes of UNS Alloys C21000, C
3、22000, C23000,C24000, C26000, C26800, C27000, and C27400.1.2 UnitsThe values stated in either inch-pound or SIunits are to be regarded separately as standard. Within the textand tables, the SI units are shown in brackets. The values statedin each system may not be exact equivalents; therefore, eachs
4、ystem shall be used independently of the other. Combiningvalues from the two systems may result in nonconformancewith the standard.2. Referenced Documents2.1 ASTM Standards:B 16/B 16M Specification for Free-Cutting Brass Rod, Barand Shapes for Use in Screw Machines2B 36/B 36M Specification for Brass
5、 Plate, Sheet, Strip, andRolled Bar2B 121/B 121M Specification for Leaded Brass Plate, Sheet,Strip, and Rolled Bar2B 124/B 124M Specification for Copper and Copper AlloyForging Rod, Bar, and Shapes2B 134/B 134M Specification for Brass Wire2B 135 Specification for Seamless Brass Tube2B 249/B 249M Spe
6、cification for General Requirements forWrought Copper and Copper-Alloy Rod, Bar, Shapes andForgings2B 587 Specification for Welded Brass Tube2E 8 Test Methods for Tension Testing of Metallic Materials3E 8M Test Methods for Tension Testing of Metallic Mate-rials (Metric)3E 478 Test Methods for Chemic
7、al Analysis of CopperAlloys43. General Requirements3.1 The following 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 Specim
8、en 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 addition, when a section wit
9、h a title identical to thatreferenced in 3.1 appears in this specification, 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.
10、1.2 Copper Alloy 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
11、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 When material is purchased for agencies of the U.S.government (Specification B 249/B 249M).1This specification is under the jurisdiction of AST
12、M 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 May 10, 2003. Published June 2003.2Annual Book of ASTM Standards, Vol 02.01.3Annual Book of ASTM Standards, Vol 03.01.4Annual Book of ASTM
13、 Standards, Vol 03.06.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.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 (Spe
14、cification B 249/B 249M), and4.2.2 Mill Test Report (Specification B 249/B 249M).5. Materials and 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,soundne
15、ss, and structure to be suitable for processing into thedesired product.5.2 Manufacture:5.2.1 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 c
16、onform to the chemical composi-tional requirements specified in Table 1 for the copper alloyspecified in the ordering information.6.1.1 When all elements specified for a given alloy in Table1 are determined, their sum of results shall be as follows:Alloy UNS Nos.Sum of Results,Percent, MinimumC21000
17、, C22000, C23000, C24000 99.8C26000, C26800, C27000, C27400 99.76.2 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.6.3 Zinc, listed as the “remainder,”
18、is the difference betweenthe sum of results for all elements determined and 100 %.7. 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 (14Hard),7.1.3 H02 (12Hard), and7.1.4 H04 (Hard).7.2 Other tempers, and tem
19、per for other products includingshapes, shall be subject to agreement between the manufacturerand the purchaser.8. Mechanical 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 E 8 orE 8M.
20、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 section of SpecificationB 249/B 249M.10. Dimensions, Mass, and Pe
21、rmissible Variations10.1 The dimensions and tolerances for rod, bar, and shapesdescribed by this specification shall be 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 Ro
22、dTable 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 AnglesAll regular polygonal sections shall havesubstantially exact angl
23、es and, unless otherwise specified,sharp corners.11. Test Methods11.1 Chemical Analysis:11.1.1 Composition shall be determined, 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 determinatio
24、n 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 bar; brass rod; brass shape; copper-alloy rod;C21000; C22000; C23000; C24000; C26000; C26800;C27000; C27400TABLE 1 Chemical Requir
25、ementsCopper 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 remainderC26800 64.0-68.5 0.15 0.05 remainderC27000 63.0-68
26、.5 0.10 0.07 remainderC27400 61.0-64.0 0.10 0.05 remainderB927032TABLE 2 Tensile Requirements (Inch-Pound Units)TemperDiameter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin43 diameter or43 thickness, minCode Name ksi ksi %Cop
27、per Alloy UNS No. C21000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 30 10 25H0114Hard Under1212 to 1, inclover 1363432161412151719H0212Hard Under1212 to 1, inclover 14240372523208911H04 Hard Under1212 to 1, inclover 1 to 2 incl524845403735579Copper Alloy UNS No. C21000 BarBO60 Soft A
28、nneal All sizes 30 10 25H0114Hard Under1212 to 2, incl343214121719Copper Alloy UNS No. C22000 Rod (round, hexagonal, octagonal)060 Soft Anneal All sizes 32 10 25H0114Hard Under1212 to 1, inclover 1393734201715151719H0212Hard Under1212 to 1, inclover 150454030272571012H04 Hard Under1212 to 1, inclove
29、r 1 to 2 incl575550403735579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 32 10 25H0114Hard Under1212 to 2, incl353416151719Copper Alloy UNS No. C23000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 35 10 25H0114Hard Under1212 to 1, inclover 1444240201715151719H0212Hard Under
30、1212 to 1, inclover 150454030272571012H04 Hard Under1212 to 1, inclover 1 to 2 incl636058403735579Copper Alloy UNS No. C23000 BarBO60 Soft Anneal All sizes 35 10 25H0114Hard Under1212 to 1, inclover 1 to 2 incl403836151311192225H0212Hard Under1212 to 1, inclover 1 to 2 incl444240201715151719Copper A
31、lloy UNS No. C24000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 10 30H0114Hard Under1212 to 1, inclover 1474543252018182022H0212Hard Under1212 to 1, inclover 1534843333028101315H04 Hard Under1212 to 1, inclover 1 to 2 incl68656045403581012B927033TABLE 2 ContinuedTemperDiameter orDi
32、stance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin43 diameter or43 thickness, minCode Name ksi ksi %Copper Alloy UNS No. C24000 BarBO60 Soft Anneal All sizes 40 10 30H0114Hard Under1212 to 1, inclover 1 to 2 incl454341201816202225Copp
33、er Alloy UNS No. C26000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 12 30H0114Hard Under1212 to 1, inclover 1504846302520202428H0212Hard Under1212 to 1, inclover 1575450353230152025H04 Hard Under1212 to 1, inclover 1 to 2 incl706560504540101520Copper Alloy UNS No. C26000 BarBO60 So
34、ft Anneal All sizes 40 12 30H0212Hard Under1212 to 1, inclover 1 to 2 incl504540251715102020Copper Alloy UNS No. C26800, C27000, C27400 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 40 12 30H0114Hard Under1212 to 1, inclover 1474543252018182022H0212Hard Under1212 to 1, inclover 15348433
35、33028101315H04 Hard Under1212 to 1, inclover 1 to 2 incl68656045403581012Copper Alloy UNS No. C26800, C27000, C27400 BarBO60 Soft Anneal All sizes 40 12 30H0212Hard Under1212 to 1, inclover 1 to 2 incl504540251715102020AIn any case, a minimum gage length of 1 in. shall be used.BFor rectangular bar,
36、the Distance Between Parallel Surfaces refers to thickness.B927034TABLE 3 Tensile Requirements (SI Units)TemperDiameter orDistance BetweenParallel Surfaces, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load, minElongationAin43 diameter or43 thickness, minCode Name MPa MPa %Copper All
37、oy UNS No. C21000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 205 70 25H0114Hard Under 1212 to 25, inclover 252502352201109585151719H0212Hard Under 1212 to 25, inclover 252902752551701601408911H04 Hard Under 1212 to 25, inclover 25 to 50 incl360330310275255240579Copper Alloy UNS No. C
38、21000 BarBO60 Soft Anneal All sizes 205 70 25H0114Hard Under 1212 to 50, incl23522095851719Copper Alloy UNS No. C22000 Rod (round, hexagonal, octagonal)060 Soft Anneal All sizes 220 70 25H0114Hard Under 1212 to 25, inclover 25270255235140115105151719H0212Hard Under 1212 to 25, inclover 2534531027520
39、518517071012H04 Hard Under 1212 to 25, inclover 25 to 50 incl395380345275255240579Copper Alloy UNS No. C22000 BarBO60 Soft Anneal All sizes 220 70 25H0114Hard Under 1212 to 50, incl2402351101051719Copper Alloy UNS No. C23000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 240 70 25H0114Ha
40、rd Under 1212 to 25, inclover 25305290275140115103151719H0212Hard Under 1212 to 25, inclover 2534531028520518517071012H04 Hard Under 1212 to 25, inclover 25 to 50 incl435415400275255240579Copper Alloy UNS No. C23000 BarBO60 Soft Anneal All sizes 240 70 25H0114Hard Under 1212 to 25, inclover 25 to 50
41、 incl2752602501059075192225H0212Hard Under 1212 to 25, inclover 25 to 50 incl305290275140115105151719Copper Alloy UNS No. C24000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 275 70 30H0114Hard Under 1212 to 25, inclover 25325310295170140125182022H0212Hard Under 1212 to 25, inclover 253
42、65330295230205195101315H04 Hard Under 1212 to 25, inclover 25 to 50 incl47045041531027524081012B927035APPENDIXES(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
43、 is the newton (N), which is defined asthat force which 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 th
44、e General Conference on Weightsand Measures. Since 1 ksi = 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, in.Tensile Strength,minYield Strength at0.5 % ExtensionUnder Load
45、, minElongationAin43 diameter or43 thickness, minCode Name MPa MPa %Copper Alloy UNS No. C24000 BarBO60 Soft Anneal All sizes 275 70 30H0114Hard Under 1212 to 25, inclover 25 to 50 incl310295285140125110202225Copper Alloy UNS No. C26000 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 275
46、85 30H0114Hard Under 1212 to 25, inclover 25345330315205170140202428H0212Hard 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 30H0212Hard Under 1212 to 25, i
47、nclover 25 to 50 incl345310275170115105102020Copper Alloy UNS No. C26800, C27000, C27400 Rod (round, hexagonal, octagonal)O60 Soft Anneal All sizes 275 85 30H0114Hard Under 1212 to 25, inclover 25325310295170140125182022H0212Hard Under 1212 to 25, inclover 25365330295230205195101315H04 Hard Under 12
48、12 to 25, inclover 25 to 50 incl47045041531027524081012Copper Alloy UNS No. C26800, C27000, C27400 BarBO60 Soft Anneal All sizes 275 85 30H0212Hard 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 Dis
49、tance Between Parallel Surfaces refers to thickness.B927036X2. 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 rods, shapes, forgings, and flat products, was can-celled by Rev D, Notice 2, February 28, 1991. ASTMSpecifications B 36/B 36M, B 16/B 16M, B 121/B 121M, andB 124/B 124M were referenced replacements for future pro-curement.X
