1、Designation:B24807 Designation: B248 12Standard Specification forGeneral Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar1This standard is issued under the fixed designation B248; the number immediately following the designation indicates the year oforiginal adopt
2、ion or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. S
3、cope*1.1 This specification establishes the general requirements common to several wrought product specifications. Unless otherwisespecified in the purchase order or in an individual specification, these general requirements shall apply to copper and copper-alloyplate, sheet, strip, and rolled bar s
4、upplied under each of the following product specifications issued by ASTM: B36/B36M,B96/B96M, B103/B103M, B121/B121M, B122/B122M, B152/B152M, B169/B169M, B194, B422, B465, B534, B543, B591,B592, B694, B740, B747, and , B768, and B888.2Note1A complete metric companion to Specification B248 has beende
5、velopedB248M; therefore no metric equivalents are presented in this specification.1.2 UnitsThis specification is the companion specification to SI Specification B248M; therefore, no SI equivalents are shownin this specification.2. Referenced Documents2.1 The following documents of the issue in effec
6、t on date of material purchase form a part of this specification to the extentreferenced herein:2.2 ASTM Standards:3B36/B36M Specification for Brass Plate, Sheet, Strip, And Rolled BarB96/B96M Specification for Copper-SiliconAlloy Plate, Sheet, Strip, and Rolled Bar for General Purposes and Pressure
7、 VesselsB103/B103M Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled BarB121/B121M Specification for Leaded Brass Plate, Sheet, Strip, and Rolled BarB122/B122M Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel AlloyPlate, Sheet, St
8、rip, and Rolled BarB152/B152M Specification for Copper Sheet, Strip, Plate, and Rolled BarB169/B169M Specification for Aluminum Bronze Sheet, Strip, and Rolled BarB193 Test Method for Resistivity of Electrical Conductor MaterialsB194 Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and
9、Rolled BarB248M Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar(Metric)B422 Specification for Copper-Aluminum-Silicon-Cobalt Alloy, Copper-Nickel-Silicon-Magnesium Alloy, Copper-Nickel-Silicon Alloy, Copper-Nickel-Aluminum-Magnesium Allo
10、y, and Copper-Nickel-Tin Alloy Sheet and StripB465 Specification for Copper-Iron Alloy Plate, Sheet, Strip, and Rolled BarB534 Specification for Copper-Cobalt-Beryllium Alloy and Copper-Nickel-Beryllium Alloy Plate, Sheet, Strip, and Rolled BarB543Specification for Welded Copper and Copper-Alloy Hea
11、t Exchanger TubeB591 Specification for Copper-Zinc-Tin and Copper-Zinc-Tin-Iron-Nickel Alloys Plate, Sheet, Strip, and Rolled BarB592 Specification for Copper-Zinc-Aluminum-Cobalt Alloy, Copper-Zinc-Tin-Iron Alloy Plate, Sheet, Strip, and Rolled BarB694 Specification for Copper, Copper-Alloy, Copper
12、-Clad Bronze (CCB), Copper-Clad Stainless Steel (CCS), and Copper-Clad Alloy Steel (CAS) Sheet and Strip for Electrical Cable Shielding1This specification is under the jurisdiction of the ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
13、Sheet, and Strip.Current edition approved Oct.April 1, 2007.2012. Published October 2007.May 2012. Originally approved in 1951. Last previous edition approved in 20062007 asB248 067. DOI: 10.1520/B0248-07.10.1520/B0248-12.2The UNS system for copper and copper alloys (see Practice E527) is a simple e
14、xpansion of the former standard designation system accomplished by the addition of aprefix “C” and a suffix “00”.“00.” The suffix can be used to accommodate composition variations of the base alloy.3For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service
15、 at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This 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
16、version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends 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
17、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.B740 Specification for Copper-Nickel-Tin Spinodal Alloy StripB747 Specification for Copper-Zirconium Alloy Sheet and StripB768 Specification f
18、or Copper-Cobalt-Beryllium Alloy and Copper-Nickel-Beryllium Alloy Strip and SheetB846 Terminology for Copper and Copper AlloysB888 Specification for Copper Alloy Strip for Use in Manufacture of Electrical Connectors or Spring ContactsE88/E8M Test Methods for Tension Testing of Metallic MaterialsE18
19、 Test Methods for Rockwell Hardness of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE50 Practices forApparatus, Reagents, and Safety Considerations for ChemicalAnalysis of Metals, Ores, and Related MaterialsE53 Test Method for D
20、etermination of Copper in Unalloyed Copper by GravimetryE54 Test Methods for Chemical Analysis of Special Brasses and BronzesE62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc AlloysE1
21、06 Test Methods for Chemical Analysis of Copper-Beryllium AlloysE112 Test Methods for Determining Average Grain SizeE118 Test Methods for Chemical Analysis of Copper-Chromium AlloysE121 Test Methods for Chemical Analysis of Copper-Tellurium AlloysE255 Practice for Sampling Copper and Copper Alloys f
22、or the Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper AlloysE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)3. Terminology3.1 For definitions of terms related to copper and copper alloys, see Terminology B846.3.2 Definitions
23、of Terms Specific to This Standard:3.2.1 coil, na length of the product wound into a series of connected turns. The unqualified term “coil” as applied to “flatproduct” usually refers to a coil in which the product is spirally wound, with the successive layers on top of one another.(Sometimes called
24、a “roll.”)3.2.2 lengths, mill, nstraight lengths, including ends, that can be conveniently manufactured in the mills. Full-length piecesare usually 8, 10, or 12 ft and subject to established length tolerances.3.2.3 lengths, stock, nstraight lengths that are mill cut and stored in advance of orders.
25、They are usually 8, 10, or 12 ft andsubject to established length tolerances.3.2.4 rolled bar, na rolled flat product over 0.188 in. thick and up to and including 12 in. wide, with sheared, sawed, ormachined edges, in straight lengths or coils (rolls).4. Materials and Manufacture4.1 Materials:4.1.1
26、The material of manufacture shall be a cast bar, cake, or slab of such purity and soundness as to be suitable for processinginto the products to the product specification listed in Section 1.4.1.2In the event heat identification or traceability is required, the purchaser shall specify the details de
27、sired.4.1.2 When specified in the contract or purchase order that heat identification or traceability is required, the purchaser shallspecify the details desired.4.2 Manufacture:4.2.1 The product shall be manufactured by such hot-working orhot-working, cold-working and annealing processes as toprodu
28、ce a uniform wrought structure in the finished product.4.2.2 The product shall be hot or cold-worked to the finished size and subsequently annealed when required, to meet the temperproperties specified.4.3 EdgesThe edges shall be slit, sheared, sawed, or rolled edges, as specified. Slit edges shall
29、be furnished unless otherwisespecified in the contract or purchase order. See 5.6 for edge descriptions and corresponding tables for tolerances.5. Dimensions, Weights, and Permissible Variations5.1 GeneralFor the purpose of determining conformance with the dimensional requirements prescribed in this
30、 specification,any measured value outside the specified limiting values for any dimension may be cause for rejection.NOTE2Blank 1Blank spaces in the tolerance tables indicate either that the material is not available or that no tolerances have been established.5.2 ThicknessThe standard method of spe
31、cifying thickness shall be in decimal fractions of an inch. For material 0.021 in. andunder in thickness, it is recommended that the nominal thicknesses be stated not closer than the nearest half-thousandth. (Forexample, specify 0.006 or 0.0065 in., but not 0.0063 in.) For material over 0.021 in. in
32、 thickness, it is recommended that thenominal thicknesses be stated not closer than the nearest thousandth. (For example, specify 0.128 or 0.129 in., but not 0.1285 in.)Alist of preferred thicknesses is shown inAppendix X1. The thickness tolerances shall be those shown in Tables 1-3 for the products
33、pecification indicated:B248 1225.2.1 Table 1Thickness tolerances applicable to Specifications B36/B36M, B103/B103M, B121/B121M, B152/B152M,B465, B591, B592, and , B747, and B888.5.2.2 Table 2Thickness tolerances applicable to Specifications B96/B96M, B122/B122M, B169/B169M, B194, B422, B534,B543, B7
34、40, and B768.5.2.3 Table 3Special thickness tolerances applicable to Copper Alloy UNS No. C72500 when ordered to SpecificationB122/B122M, and to Specifications B194, B534, B543, B740, and B768 as noted in the table.5.3 WidthThe width tolerances shall be those shown in Tables 4-6, depending on the ty
35、pe of edge required (see 5.3.1, 5.3.2,and 5.3.3):5.3.1 Table 4Width tolerances for slit metal and slit metal with rolled edges.5.3.2 Table 5Width tolerances for square-sheared metal.5.3.3 Table 6Width tolerances for sawed metal.5.4 LengthThe material shall be furnished in coils or straight lengths o
36、f plate, sheet, strip, or rolled bar as specified. The lengthtolerances for straight lengths shall be those shown in Tables 7-10, depending on the method of cutting required (see 5.4.1-5.4.4).When ends are permitted, the length and quantity of the ends shall be in accordance with the schedule in Tab
37、le 8.5.4.1 Table 7Length tolerances, for straight lengths.5.4.2 Table 8Schedule of minimum length and maximum weight of ends for lengths with ends. Schedule of minimumlength and maximum weight of ends for mill lengths specific lengths with ends, and stock lengths with ends.5.4.3 Table 9Length tolera
38、nces for square-sheared metal. Length tolerances for square-sheared metal in all widths 120 in.and under.5.4.4 Table 10Length tolerances for sawed metal.5.5 StraightnessThe straightness tolerances, which are the maximum edgewise curvature (depth of arc) in any 72-in. portionof the total length, shal
39、l be those shown in Tables 11-13, depending on the type of edge required.5.5.1 Table 11Straightness tolerances for metal as slit, or as slit and straightened, or as slit and edge-rolled, or metal withdrawn edges.5.5.2 Table 12Straightness tolerances for square-sheared metal.5.5.3 Table 13Straightnes
40、s tolerances for sawed metal.5.6 EdgesWhen rolled edges are required, they may be produced by either rolling or drawing to one of the following specifiededge contours:5.6.1 Square Edges (Square Corners)Edges shall have commercially-squared corners and with a maximum corner radius asprescribed in Tab
41、le 14.5.6.2 Rounded CornersEdges shall have rounded corners as shown in Fig. 1 with a radius as prescribed in Table 15.5.6.3 Rounded EdgesEdges shall be rounded as shown in Fig. 2 with a radius as prescribed in Table 16.TABLE 1 Thickness Tolerances(Applicable to Specifications B36/B36M, B103/B103M,
42、B121/B121M, B152/B152M, B465, B591, B592, and B747, and B888)Thickness, in.Thickness Tolerances, plus and minus,Ain.Strip Sheet8 in. andUnder in WidthOver 8to12 in.,incl, inWidthOver 12 to14 in.,incl, in WidthOver 14 to20 in.,incl, in WidthOver 20 to24 in.,incl, in WidthOver 24 to28 in.,incl, in Wid
43、thOver 28 to36 in.,incl, in WidthOver 36 to48 in.,incl, in WidthOver 48 to60 in.,incl, in Width0.004 and under 0.0003 0.0006 0.0006 . . . . . . . . . . . . . . . . . .Over 0.004 to 0.006, incl 0.0004 0.0008 0.0008 0.0013 . . . . . . . . . . . . . . .Over 0.006 to 0.009, incl 0.0006 0.0010 0.0010 0.0
44、015 . . . . . . . . . . . . . . .Over 0.009 to 0.013, incl 0.0008 0.0013 0.0013 0.0018 0.0025 0.0025 0.003 0.0035 0.004Over 0.013 to 0.017, incl 0.0010 0.0015 0.0015 0.002 0.0025 0.0025 0.003 0.0035 0.0045Over 0.017 to 0.021, incl 0.0013 0.0018 0.0018 0.002 0.003 0.003 0.0035 0.004 0.005Over 0.021 t
45、o 0.026, incl 0.0015 0.002 0.002 0.0025 0.003 0.003 0.0035 0.004 0.005Over 0.026 to 0.037, incl 0.002 0.002 0.002 0.0025 0.0035 0.0035 0.004 0.005 0.006Over 0.037 to 0.050, incl 0.002 0.0025 0.0025 0.003 0.004 0.004 0.005 0.006 0.007Over 0.050 to 0.073, incl 0.0025 0.003 0.003 0.0035 0.005 0.005 0.0
46、06 0.007 0.008Over 0.073 to 0.130, incl 0.003 0.0035 0.0035 0.004 0.006 0.006 0.007 0.008 0.010Over 0.130 to 0.188, incl 0.0035 0.004 0.004 0.0045 0.007 0.007 0.008 0.010 0.012Rolled Bar PlateOver 0.188 to 0.205, incl 0.0035 0.004 0.004 0.0045 0.007 0.007 0.008 0.010 0.012Over 0.205 to 0.300, incl 0
47、.004 0.0045 0.0045 0.005 0.009 0.009 0.010 0.012 0.014Over 0.300 to 0.500, incl 0.0045 0.005 0.005 0.006 0.012 0.012 0.013 0.015 0.018Over 0.500 to 0.750, incl 0.0055 0.007 0.007 0.009 0.015 0.015 0.017 0.019 0.023Over 0.750 to 1.00, incl 0.007 0.009 0.009 0.011 0.018 0.018 0.021 0.024 0.029Over 1.0
48、0 to 1.50, incl 0.022 0.022 0.022 0.022 0.022 0.022 0.025 0.029 0.036Over 1.50 to 2.00, incl 0.026 0.026 0.026 0.026 0.026 0.026 0.030 0.036 0.044AWhen tolerances are specified as all plus or all minus, double the values given.B248 1235.6.4 Full-Rounded EdgesEdges shall be full rounded as shown in F
49、ig. 3 with a radius as prescribed in Table 17.5.7 Weight Tolerances for Hot-Rolled Material:5.7.1 Table 18Lot weight tolerances for hot-rolled sheet and plate applicable to Specifications B36/B36M, B96/B96MTABLE 2 Thickness Tolerances(Applicable to Specifications B96/B96M, B122/B122M, B169/B169M, B194, B422, B534, B543, B740, and B768)Thickness, in.Thickness Tolerances, Plus and Minus,Ain.Strip Sheet8 in. and Underin WidthOver 8 to 12in., incl, inWidthOver 12 to 14in., incl, inWidthOver 14 to 20in., incl, inWidthOver 20 to 24in., incl, inWidthO
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