1、Designation: B 248M 07METRICStandard Specification forGeneral Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar Metric1This standard is issued under the fixed designation B 248M; the number immediately following the designation indicates the year oforiginal adoptio
2、n or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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. Sc
3、ope*1.1 This specification establishes the general requirementscommon to several wrought product specifications. Unlessotherwise specified in the purchase order or in an individualspecification, these general requirements shall apply to copperand copper-alloy plate, sheet, strip, and rolled bar supp
4、liedunder each of the following product specifications issued byASTM: B 36/B 36M, B 96/B 96M, B 103/B 103M, B 121/B 121M, B 122/B 122M, B 152/B 152M, B 169/B 169M,B 194, B 422, B 465, B 534, B 591, B 592, B 694, B 740,B 747, and B 768.21.2 UnitsThis specification is the companion specificationto inc
5、h-pound Specification B 248.2. Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:3B 36/B 36M Specification for Brass Plate, Sheet, Strip, AndRolled BarB 96/B 96M Speci
6、fication for Copper-Silicon Alloy Plate,Sheet, Strip, and Rolled Bar for General Purposes andPressure VesselsB 103/B 103M Specification for Phosphor Bronze Plate,Sheet, Strip, and Rolled BarB 121/B 121M Specification for Leaded Brass Plate, Sheet,Strip, and Rolled BarB 122/B 122M Specification for C
7、opper-Nickel-Tin Alloy,Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled BarB 152/B 152M Specification for Copper Sheet, Strip, Plate,and Rolled BarB 169/B 169M Specification for Aluminum Bronze Sheet,Strip, and Rolled BarB 193 Test Method for Resistiv
8、ity of Electrical ConductorMaterialsB 194 Specification for Copper-Beryllium Alloy Plate,Sheet, Strip, and Rolled BarB 248 Specification for General Requirements for WroughtCopper and Copper-Alloy Plate, Sheet, Strip, and RolledBarB 422 Specification for Copper-Aluminum-Silicon-CobaltAlloy, Copper-N
9、ickel-Silicon-Magnesium Alloy, Copper-Nickel-Silicon Alloy, Copper-Nickel-Aluminum-MagnesiumAlloy, and Copper-Nickel-TinAlloy Sheet andStripB 465 Specification for Copper-Iron Alloy Plate, Sheet,Strip, and Rolled BarB 534 Specification for Copper-Cobalt-BerylliumAlloy andCopper-Nickel-Beryllium Allo
10、y Plate, Sheet, Strip, andRolled BarB 591 Specification for Copper-Zinc-Tin and Copper-Zinc-Tin-Iron-Nickel Alloys Plate, Sheet, Strip, and Rolled BarB 592 Specification for Copper-Zinc-Aluminum-Cobalt Al-loy, Copper-Zinc-Tin-Iron Alloy Plate, Sheet, Strip, andRolled BarB 694 Specification for Coppe
11、r, Copper-Alloy, Copper-Clad Bronze (CCB), Copper-Clad Stainless Steel (CCS),and Copper-Clad Alloy Steel (CAS) Sheet and Strip forElectrical Cable Shielding1This specification is under the jurisdiction ofASTM Committee B05 on Copperand CopperAlloys and is the direct responsibility of Subcommittee B0
12、5.01 on Plate,Sheet, and Strip.Current edition approved Oct. 1, 2007. Published October 2007. Originallyapproved in 1980. Last previous edition approved in 2006 as B 248M 06.2The UNS system for copper and copper alloys (see Practice E 527) is a simpleexpansion of the former standard designation syst
13、em accomplished by the additionof a prefix “C” and a suffix “00”. The suffix can be used to accommodatecomposition variations of the base alloy.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards v
14、olume information, refer to the standards Document Summary page onthe ASTM website.1*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.B 740 Specification for Copper-Nicke
15、l-Tin Spinodal AlloyStripB 747 Specification for Copper-Zirconium Alloy Sheet andStripB 768 Specification for Copper-Cobalt-BerylliumAlloy andCopper-Nickel-Beryllium Alloy Strip and SheetB 846 Terminology for Copper and Copper AlloysE8M Test Methods for Tension Testing of Metallic Mate-rials MetricE
16、18 Test Methods for Rockwell Hardness of MetallicMaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE50 Practices for Apparatus, Reagents, and Safety Consid-erations for Chemical Analysis of Metals, Ores, andRelated MaterialsE53 Test Method for
17、 Determination of Copper in Unal-loyed Copper by GravimetryE54 Test Methods for Chemical Analysis of SpecialBrasses and Bronzes4E62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E75 Test Methods for Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc AlloysE
18、 106 Test Methods for Chemical Analysis of Copper-Beryllium AlloysE112 Test Methods for Determining Average Grain SizeE118 Test Methods for Chemical Analysis of Copper-Chromium AlloysE 121 Test Methods for Chemical Analysis of Copper-Tellurium AlloysE 255 Practice for Sampling Copper and Copper Allo
19、ys forthe Determination of Chemical CompositionE 478 Test Methods for Chemical Analysis of CopperAlloysE 527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)3. Terminology3.1 For definitions of terms related to copper and copperalloys, refer to Terminology B 846.3.2 Defi
20、nitions of Terms Specific to This Standard:3.2.1 coil, na length of the product wound into a series ofconnected turns. The unqualified term “coil” as applied to “flatproduct” usually refers to a coil in which the product is spirallywound, with the successive layers on top of one another.(Sometimes c
21、alled a “roll.”)3.2.2 lengths, mill, nstraight lengths, including ends, thatcan be conveniently manufactured in the mills. Full lengthpieces are usually 2400, 3000, or 3600 mm and subject toestablished length tolerances.3.2.2.1 lengths, stock, nstraight lengths that are mill cutand stored in advance
22、 of orders. They are usually 2400, 3000,or 3600 mm and subject to established length tolerances.3.2.3 rolled bar, na rolled flat product over 5 mm thickand up to and including 300 mm wide, with sheared, sawed, ormachined edges, in straight lengths or coils (rolls).4. Materials and Manufacture4.1 Mat
23、erialsThe material of manufacture shall be a castbar, cake, slab of such purity and soundness as to be suitablefor processing into the products to the product specificationlisted in Section 1.4.2 Manufacture:4.2.1 The product shall be manufactured by such hot work-ing or cold working and annealing p
24、rocess as to produce auniform wrought structure in the finished product.4.2.2 The product shall be hot or cold worked to the finishedsize and subsequently annealed, when required, to meet thetemper properties specified.4.3 EdgesThe edges shall be slit, shared, sawed, or rollededges, as specified. Sl
25、it edges shall be furnished unlessotherwise specified in the contract or purchase order. See 5.6for edge descriptions and corresponding tables for tolerances.5. Dimensions, Mass, and Permissible Variations5.1 GeneralFor the purpose of determining conformancewith the dimensional requirements prescrib
26、ed in this specifi-cation, any measured value outside the specified limitingvalues for any dimension may be cause for rejection.NOTE 1Blank spaces in the tolerance tables indicate either that thematerial is not available or that no tolerances have been established.5.2 ThicknessThe standard method of
27、 specifying thick-ness shall be in decimal fractions of a millimetre. For material0.50 mm and under in thickness, it is recommended that thenominal thicknesses be stated not closer than the nearest 0.01mm. A list of preferred thicknesses is shown in Appendix X1.The thickness tolerances shall be thos
28、e shown in Tables 1-3 forthe product specification indicated:5.2.1 Table 1Thickness tolerances applicable to Specifi-cations B 36/B 36M, B 103/B 103M, B 121/B 121M, B 152/B 152M, B 465, B 591, B 592, and B 747.5.2.2 Table 2Thickness tolerances applicable to Specifi-cations B 96/B 96M, B 122/B 122M,
29、B 169/B 169M, B 194,B 422, B 534, B 740, and B 768.5.2.3 Table 3Special thickness tolerances applicable toCopper Alloy UNS No. C72500 when ordered to SpecificationB 122/B 122M, and to Specifications B 194, B 534, B 740, andB 768 as noted in the table.5.3 WidthThe width tolerances shall be those show
30、n inTables 4-6 depending on the type 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 metalwith 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 furnish
31、ed in coils orstraight lengths of plate, sheet, strip, or rolled bar as specified.The length tolerances for straight lengths shall be those shownin Tables 7-10 depending on the method of cutting required4Withdrawn.B248M072(see 5.4.1-5.4.4). When ends are permitted, the length andquantity of the ends
32、 shall be in accordance with the schedule inTable 8.5.4.1 Table 7Length tolerances for straight lengths.5.4.2 Table 8Schedule of minimum length and maximumweight of ends for lengths with ends.5.4.3 Table 9Length tolerances for square-sheared metal.5.4.4 Table 10Length tolerances for sawed metal.5.5
33、StraightnessThe straightness tolerances which are themaximum edgewise curvature (depth of arc) in any 1800-mmportion of the total length, shall be those shown in Tables 11-13depending on the type of edge required.5.5.1 Table 11Straightness tolerances for metal as slit, oras slit and straightened, or
34、 as slit and edge-rolled, or metal withdrawn edges.TABLE 1 Thickness Tolerances(Applicable to Specifications B 36/B 36M, B 103/B 103M, B 121/B 121M, B 152/B 152M, B 465, B 591, B 592, and B 747)Thickness, mm Thickness Tolerances, Plus and Minus, mmOver ThroughStrip SheetUp to 200mm, incl, inWidthOve
35、r 200mm to 300mm, incl, inWidthOver 300mm to 600mm, incl, inWidthOver 600mm to 700mm, incl, inWidthOver 700mm to 900mm, incl, inWidthOver 900mm to 1200mm, incl, inWidthOver 1200mm to 1600mm, incl, inWidth0.10 0.007 0.015 . . . . .0.10 0.20 0.01 0.02 0.03 . . . .0.20 0.30 0.015 0.025 0.035 . . . .0.3
36、0 0.40 0.02 0.03 0.045 0.06 0.08 0.09 0.100.40 0.50 0.025 0.035 0.05 0.06 0.08 0.09 0.110.50 0.60 0.03 0.04 0.05 0.08 0.09 0.10 0.120.60 0.70 0.035 0.05 0.06 0.08 0.09 0.10 0.120.70 1.0 0.045 0.05 0.06 0.09 0.10 0.12 0.151.0 1.3 0.05 0.06 0.07 0.10 0.12 0.15 0.171.3 2.0 0.06 0.07 0.08 0.12 0.15 0.17
37、 0.202.0 3.5 0.07 0.08 0.10 0.15 0.17 0.20 0.253.5 5.0 0.08 0.10 0.11 .17 0.20 0.25 0.30Rolled Bar Plate5.0 8.0 0.10 0.11 0.12 0.22 0.25 0.30 0.358.0 13.0 0.11 0.12 0.15 0.30 0.35 0.40 0.4513.0 20.0 0.13 0.17 0.22 0.40 0.45 0.50 0.6020.0 30.0 0.17 0.22 0.27 0.45 0.55 0.60 0.7530.0 40.0 0.55 0.55 0.5
38、5 0.55 0.65 0.75 0.9040.0 60.0 0.65 0.65 0.65 0.65 0.75 0.90 1.1TABLE 2 Thickness Tolerances(Applicable to Specifications B 96/B 96M, B 122/B 122M, B 169/B 169M, B 194, B 422, B 534, B 740, and B 768)Thickness, mm Thickness Tolerances, Plus and Minus, mmOver ThroughStrip SheetUp to 200mm, incl, inWi
39、dthOver 200mm to 300mm, incl, inWidthOver 300mm to 600mm, incl, inWidthOver 600mm to 700mm, incl, inWidthOver 700mm to 900mm, incl, inWidthOver 900mm to 1200mm, incl, inWidthOver 1200mm to 1600mm, incl, inWidth0.10 0.01 0.02 . . . . .0.10 0.20 0.015 0.025 0.035 . . . .0.20 0.30 0.02 0.03 0.05 . . .
40、.0.30 0.40 0.025 0.035 0.06 . . . .0.40 0.50 0.03 0.05 0.06 . . . .0.50 0.60 0.035 0.06 0.07 . . . .0.60 0.70 0.05 0.06 0.07 0.10 0.13 0.15 0.180.70 1.0 0.06 0.07 0.08 0.13 0.15 0.18 0.201.0 1.3 0.07 0.08 0.10 0.15 0.18 0.20 0.251.3 2.0 0.08 0.10 0.11 0.18 0.20 0.25 0.302.0 3.5 0.10 0.11 0.12 0.20 0
41、.25 0.30 0.353.5 5.0 0.11 0.13 0.15 0.25 0.30 0.35 0.40Rolled Bar Plate5.0 8.0 0.13 0.15 0.18 0.30 0.35 0.40 0.458.0 13.0 0.15 0.18 0.20 0.40 0.45 0.50 0.6013.0 20.0 0.20 0.25 0.30 0.50 0.55 0.60 0.7520.0 30.0 0.30 0.40 0.50 0.60 0.65 0.75 0.9530.0 40.0 0.70 0.70 0.70 0.70 0.80 0.95 1.240.0 60.0 0.8
42、5 0.85 0.85 0.85 0.95 1.1 1.4B248M0735.5.2 Table 12Straightness tolerances for square-shearedmetal.5.5.3 Table 13Straightness tolerances for sawed metal.5.6 EdgesWhen rolled edges are required, they may beproduced by either rolling or drawing to one of the followingspecified edge contours:5.6.1 Squa
43、re Edges (Square Corners)Edges shall havecommercially-squared corners with a permissible maximumradius as prescribed in Table 14.5.6.2 Rounded CornersEdges shall have rounded cornersas shown in Fig. 1 with a radius as prescribed in Table 15.5.6.3 Rounded EdgesEdges shall be rounded as shown inFig. 2
44、 with a radius as prescribed in Table 16.5.6.4 Full-Rounded EdgesEdges shall be full-rounded asshown in Fig. 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 sheetand plate applicable to Specifications B 36/B 3
45、6M, B 96/B 96M (Copper Alloy UNS No. C65500), B 103/B 103M,B 122/B 122M, B 152/B 152M, and B 591.5.7.2 The weight of each lot of five or more plates or sheetsof the same type and the same specified dimensions, whenordered to thickness, shall not vary from the theoretical bymore than the amount presc
46、ribed in Table 18 for the productspecification indicated. The weight of any individual plate orsheet may vary from the nominal by not more than one third inexcess of the tolerances prescribed in Table 18 for the productspecification indicated. The tolerances for lots of less than fiveplates or sheet
47、s shall be governed by the tolerances forindividual plates or sheets.5.7.3 For the purpose of calculation, the densities of thematerials covered by these specifications are listed inAppendixX2.6. Workmanship, Finish, and Appearance6.1 The material shall be free of defects, but blemishes of anature t
48、hat do not interfere with the intended application areacceptable. A superficial film of residual light lubricant isnormally present and is acceptable unless otherwise specified.7. Sampling7.1 SamplingThe lot size, portion size, and selection ofsample pieces shall be as follows:7.1.1 Lot SizeAn inspe
49、ction lot shall be 5000 kg or lessmaterial of the same mill form, alloy, temper and nominaldimensions, subject to inspection at one time, or shall be theproduct of one cast bar from a single melt charge, whoseweight shall not exceed 12 000 kg that has been continuouslyprocessed and subject to inspection at one time.7.1.2 Portion SizeA portion shall be two representativesamples taken from the product of one cast bar that has beencontinuously processed to the finished temper and dimensions.7.1.2.1 Chemical AnalysisA sample for chemical analysissh
