1、Designation: B248M 17Standard Specification forGeneral Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)1This standard is issued under the fixed designation B248M; the number immediately following the designation indicates the year oforiginal adoption or,
2、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 U.S. Department of Defense.1. Scop
3、e*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 suppli
4、edunder each of the following product specifications issued byASTM: B19, B36/B36M, B96/B96M, B103/B103M, B121/B121M, B122/B122M, B130, B152/B152M, B169/B169M,B194, B422/B422M, B465, B534, B591, B592, B694, B740,B747, B768, B888/B888M, and B936.21.2 UnitsThis specification is the companion specificat
5、ionto inch-pound Specification B248.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Tra
6、de Organization TechnicalBarriers to Trade (TBT) Committee.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:3B19 Specification for Cartridge Brass Sheet, Strip, Pl
7、ate,Bar, and DisksB36/B36M Specification for Brass Plate, Sheet, Strip, AndRolled BarB96/B96M Specification for Copper-Silicon Alloy Plate,Sheet, Strip, and Rolled Bar for General Purposes andPressure VesselsB103/B103M Specification for Phosphor Bronze Plate,Sheet, Strip, and Rolled BarB121/B121M Sp
8、ecification 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 Alloy Plate, Sheet, Strip, and Rolled BarB130 Specification for Commercial Bronze Strip for BulletJacketsB152/B152M Specific
9、ation for Copper Sheet, Strip, Plate,and Rolled BarB169/B169M Specification for Aluminum Bronze Sheet,Strip, and Rolled BarB193 Test Method for Resistivity of Electrical ConductorMaterialsB194 Specification for Copper-BerylliumAlloy Plate, Sheet,Strip, and Rolled BarB248 Specification for General Re
10、quirements for WroughtCopper and Copper-Alloy Plate, Sheet, Strip, and RolledBarB422/B422M Specification for Copper-Aluminum-Silicon-Cobalt Alloy, Copper-Nickel-Silicon-Magnesium Alloy,Copper-Nickel-Silicon Alloy, Copper-Nickel-Aluminum-Magnesium Alloy, and Copper-Nickel-Tin Alloy Sheetand StripB465
11、 Specification for Copper-IronAlloy Plate, Sheet, Strip,and Rolled BarB534 Specification for Copper-Cobalt-Beryllium Alloy andCopper-Nickel-Beryllium Alloy Plate, Sheet, Strip, andRolled BarB591 Specification for Copper-Zinc-Tin and Copper-Zinc-Tin-Iron-Nickel Alloys Plate, Sheet, Strip, and Rolled
12、BarB592 Specification for Copper-Zinc-Aluminum-CobaltAlloy, Copper-Zinc-Tin-Iron Alloy Plate, Sheet, Strip, andRolled Bar1This specification is under the jurisdiction ofASTM Committee B05 on Copperand CopperAlloys and is the direct responsibility of Subcommittee B05.01 on Plate,Sheet, and Strip.Curr
13、ent edition approved Oct. 1, 2017. Published November 2017. Originallyapproved in 1980. Last previous edition approved in 2012 as B248M 12. DOI:10.1520/B0248M-17.2The UNS system for copper and copper alloys (see Practice E527) is a simpleexpansion of the former standard designation system accomplish
14、ed 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 volume informa
15、tion, refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accorda
16、nce with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1B694 Specification for Copper, Cop
17、per-Alloy, Copper-CladBronze (CCB), Copper-Clad Stainless Steel (CCS), andCopper-Clad Alloy Steel (CAS) Sheet and Strip forElectrical Cable ShieldingB740 Specification for Copper-Nickel-Tin Spinodal AlloyStripB747 Specification for Copper-Zirconium Alloy Sheet andStripB768 Specification for Copper-C
18、obalt-Beryllium Alloy andCopper-Nickel-Beryllium Alloy Strip and SheetB846 Terminology for Copper and Copper AlloysB888/B888M Specification for Copper Alloy Strip for Usein Manufacture of Electrical Connectors or Spring Con-tactsB936 Specification for Copper-Chromium-Iron-TitaniumAlloy Plate, Sheet,
19、 Strip and Rolled BarE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE50 Practices for Apparatus, Reagents, and Safety Consid-e
20、rations for Chemical Analysis of Metals, Ores, andRelated MaterialsE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE54 Test Methods for Chemical Analysis of Special Brassesand Bronzes (Withdrawn 2002)4E62 Test Methods for Chemical Analysis of Copper andCopperAlloys (Photo
21、metric Methods) (Withdrawn 2010)4E75 Test Methods for Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc Alloys (Withdrawn 2010)4E106 Test Methods for Chemical Analysis of Copper-Beryllium Alloys (Withdrawn 2011)4E112 Test Methods for Determining Average Grain SizeE118 Test Methods for Chemica
22、l Analysis of Copper-Chromium Alloys (Withdrawn 2010)4E121 Test Methods for Chemical Analysis of Copper-Tellurium Alloys (Withdrawn 2010)4E255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper AlloysE527 Pract
23、ice 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 B846.3.2 Definitions of Terms Specific to This Standard:3.2.1 lengths, mill, nstraight lengths, including ends, thatcan be conve
24、niently manufactured in the mills. Full lengthpieces are usually 2400, 3000, or 3600 mm and subject toestablished length tolerances.3.2.1.1 lengths, stock, nstraight lengths that are mill cutand stored in advance of orders. They are usually 2400, 3000,or 3600 mm and subject to established length tol
25、erances.3.2.2 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 Materials:4.1.1 The material of manufacture shall be a cast bar, cake,slab of such purity a
26、nd soundness as to be suitable forprocessing into the products to the product specification listedin Section 1.4.1.2 When specified in the contract or purchase order thatthe heat identification or traceability is required, the purchasershall specify the details desired.4.2 Manufacture:4.2.1 The prod
27、uct shall be manufactured by such hot-working, cold-working, and annealing process as to produce auniform wrought structure in the finished product.4.2.2 The product shall be hot- or cold-worked to thefinished size and subsequently annealed, when required, tomeet the temper properties specified.4.3
28、EdgesThe edges shall be slit, shared, sawed, or rollededges, as specified. Slit 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
29、 purpose of determining conformancewith the dimensional requirements prescribed in thisspecification, 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 t
30、hat no tolerances have been established.5.2 ThicknessThe standard method of 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 nearest0.01 mm. A list of preferred
31、 thicknesses is shown in AppendixX1. The thickness tolerances shall be those shown in Tables1-3 for the product specification indicated:5.2.1 Table 1Thickness tolerances applicable to Specifi-cations B36/B36M, B103/B103M, B121/B121M, B152/B152M, B465, B591, B592, B747, and B888/B888M.5.2.2 Table 2Th
32、ickness tolerances applicable to Specifi-cations B96/B96M, B122/B122M, B169/B169M, B194, B422/B422M, B534, B740, and B768.5.2.3 Table 3Special thickness tolerances applicable toCopper Alloy UNS No. C72500 when ordered to SpecificationB122/B122M, and to Specifications B194, B534, B740, andB768 as not
33、ed in the table.5.3 WidthThe width tolerances shall be those shown 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.4The last approved version of this historical standard is referenced onwww.
34、astm.org.B248M 1725.3.2 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 orstraight lengths of plate, sheet, strip, or rolled bar as specified.The length tolerances for straight lengths shall be those sh
35、ownin Tables 7-10 depending on the method of cutting required(see 5.4.1 5.4.4). When ends are permitted, the length andquantity of the ends 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
36、 of ends for mill lengths, specific lengths with ends, andstock lengths with ends.5.4.3 Table 9Length tolerances for square-sheared metalin all widths 3000 mm and under.5.4.4 Table 10Length tolerances for sawed metal.5.5 StraightnessThe straightness tolerances which are themaximum edgewise curvature
37、 (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.TABLE 1 Thickness Tolerances(Applicable to Specifications B36/B36M, B103/B103M, B121/B121M, B152/B152M, B465, B591, B592, B747, B888/B888M, and B936)Thickness, mm Thi
38、ckness Tolerances, Plus and Minus, mmOver ThroughStrip SheetUp to 200mm, incl, inWidthOver 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.
39、007 0.015 . . . . .0.10 0.20 0.01 0.02 0.03 . . . .0.20 0.30 0.015 0.025 0.035 . . . .0.30 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
40、 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 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 0.17 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
41、.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 0.55 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 B96/B96M, B122/B122M, B169/B169M, B194, B422/B422M, B534, B740, and B768)Thickness, mm T
42、hickness Tolerances, Plus and Minus, mmOver ThroughStrip SheetUp to 200mm, incl, inWidthOver 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
43、0.01 0.02 . . . . .0.10 0.20 0.015 0.025 0.035 . . . .0.20 0.30 0.02 0.03 0.05 . . . .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
44、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 0.25 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
45、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 0.85 0.85 0.85 0.85 0.95 1.1 1.4B248M 1735.5.1 Table 11Straightness tolerances for metal as slit, oras slit and straightened, or as slit and edge-rolled, or metal withdrawn edges.5.5.2 Table 12Straightness tolerances f
46、or 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 Square Edges (Square Corners)Edges shall havecommercially-squared corners with a
47、 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 with a radius as prescribed in Table 16.5.6.4 Full-Rounded EdgesEdges shall
48、 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 B36/B36M, B96/B96M(Copper Alloy UNS No. C65500), B103/B103M, B122/B122M, B152/B152M,
49、 and B591.5.7.2 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 prescribed 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 tol
