1、Designation: B248M 12B248M 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 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 U.S. Department of Defense
3、.1. Scope*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
4、bar supplied under each of the following product specifications issued by ASTM: B19, B36/B36M,B96/B96M, B103/B103M, B121/B121M, B122/B122M, B130, B152/B152M, B169/B169M, B194, B422B422/B422M, B465,B534, B591, B592, B694, B740, B747, B768, B888/B888M, and B888B936.21.2 UnitsThis specification is the
5、companion specification to inch-pound Specification B248.1.3 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issue
6、dby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extentreferenced herein:2.2 ASTM Standards:3B19 Specification for Cartridge Bra
7、ss Sheet, Strip, Plate, Bar, and DisksB36/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 VesselsB103/B103M Specification for Phosphor Bronze Plate, Sheet, Strip, and
8、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, Strip, and Rolled BarB130 Specification for Commercial Bronze Strip for Bullet J
9、acketsB152/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 Rolled BarB24
10、8 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled BarB422B422/B422M Specification for Copper-Aluminum-Silicon-Cobalt Alloy, Copper-Nickel-Silicon-Magnesium Alloy,Copper-Nickel-Silicon Alloy, Copper-Nickel-Aluminum-Magnesium Alloy, and Copper
11、-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 BarB591 Specification for Copper-Zinc-Tin and Copper-Zinc-Tin-Iron-Nicke
12、l Alloys Plate, Sheet, Strip, and Rolled Bar1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,Sheet, and Strip.Current edition approved April 1, 2012Oct. 1, 2017. Published May 2012Novembe
13、r 2017. Originally approved in 1980. Last previous edition approved in 20072012 asB248M 07.B248M 12. DOI: 10.1520/B0248M-12.10.1520/B0248M-17.2 The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition
14、 of aprefix “C” and a suffix “00.” The suffix can be used to accommodate composition variations of the base alloy.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the
15、 standardsstandards Document Summary page on the ASTM website.This 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 version. Becauseit may not be technically possible to adequately depict all ch
16、anges 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 section appears at the end of this standardCopyright ASTM International, 100 B
17、arr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1B592 Specification for Copper-Zinc-Aluminum-Cobalt Alloy, Copper-Zinc-Tin-Iron Alloy Plate, Sheet, Strip, and Rolled BarB694 Specification for Copper, Copper-Alloy, Copper-Clad Bronze (CCB), Copper-Clad Stainless Steel (C
18、CS), and Copper-Clad Alloy Steel (CAS) Sheet and Strip for Electrical Cable ShieldingB740 Specification for Copper-Nickel-Tin Spinodal Alloy StripB747 Specification for Copper-Zirconium Alloy Sheet and StripB768 Specification for Copper-Cobalt-Beryllium Alloy and Copper-Nickel-Beryllium Alloy Strip
19、and SheetB846 Terminology for Copper and Copper AlloysB888B888/B888M Specification for Copper Alloy Strip for Use in Manufacture of Electrical Connectors or Spring ContactsB936 Specification for Copper-Chromium-Iron-Titanium Alloy Plate, Sheet, Strip and Rolled BarE8/E8M Test Methods for Tension Tes
20、ting of Metallic MaterialsE18 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 M
21、aterialsE53 Test Method for Determination of Copper in Unalloyed Copper by GravimetryE54 Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)4E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)4E75 Test Methods for C
22、hemical Analysis of Copper-Nickel and 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 Chemical Analysis of Copper-Chromium Alloys (Withdrawn 2010)4
23、E121 Test Methods for Chemical Analysis of Copper-Tellurium Alloys (Withdrawn 2010)4E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper AlloysE527 Practice for Numbering Metals and Alloys in the Unified Nu
24、mbering System (UNS)3. Terminology3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.3.2 Definitions 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 “fla
25、tproduct” usually refers to a coil in which the product is spirally wound, with the successive layers on top of one another.(Sometimes called a “roll.”)3.2.1 lengths, mill, nstraight lengths, including ends, that can be conveniently manufactured in the mills. Full length piecesare usually 2400, 3000
26、, or 3600 mm and subject to established length tolerances.3.2.1.1 lengths, stock, nstraight lengths that are mill cut and stored in advance of orders. They are usually 2400, 3000, or 3600mm and subject to established length tolerances.3.2.2 rolled bar, na rolled flat product over 5 mm thick and up t
27、o 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 and soundness as to be suitable for processinginto the products to the p
28、roduct specification listed in Section 1.4.1.2 When specified in the contract or purchase order that the 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, cold working hot-worki
29、ng, cold-working, and annealing processas to produce a uniform wrought structure in the finished product.4.2.2 The product shall be hothot- or cold worked cold-worked to the finished size and subsequently annealed, when required,to meet the temper properties specified.4.3 EdgesThe edges shall be sli
30、t, shared, sawed, or rolled edges, as specified. Slit edges shall be furnished unless otherwisespecified in the contract or purchase order. See 5.6 for edge descriptions and corresponding tables for tolerances.5. Dimensions, Mass, and Permissible Variations5.1 GeneralFor the purpose of determining c
31、onformance with the dimensional requirements prescribed in this specification,any measured value outside the specified limiting values for any dimension may be cause for rejection.4 The last approved version of this historical standard is referenced on www.astm.org.B248M 172NOTE 1Blank spaces in the
32、 tolerance tables indicate either that the material is not available or that no tolerances have been established.5.2 ThicknessThe standard method of specifying thickness shall be in decimal fractions of a millimetre. For material 0.50 mmand under in thickness, it is recommended that the nominal thic
33、knesses be stated not closer than the nearest 0.01 mm. 0.01 mm.A list of preferred thicknesses is shown in Appendix X1. The thickness tolerances shall be those shown in Tables 1-3 for theproduct specification indicated:5.2.1 Table 1Thickness tolerances applicable to Specifications B36/B36M, B103/B10
34、3M, B121/B121M, B152/B152M,B465, B591, B592, B747, and B888B888/B888M.5.2.2 Table 2Thickness tolerances applicable to Specifications B96/B96M, B122/B122M, B169/B169M, B194, B422B422/B422M, B534, B740, and B768.5.2.3 Table 3Special thickness tolerances applicable to Copper Alloy UNS No. C72500 when o
35、rdered to SpecificationB122/B122M, and to Specifications B194, B534, B740, and B768 as noted in the table.5.3 WidthThe width tolerances shall be those shown in Tables 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 metal w
36、ith 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 of plate, sheet, strip, or rolled bar as specified.The lengthtolerances for straight lengths shall be those sho
37、wn 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 Table 8.5.4.1 Table 7Length tolerances for straight lengths.5.4.2 Table 8Schedule of minimum length and maximum wei
38、ght of ends for mill lengths, specific lengths with ends, and stocklengths with ends.5.4.3 Table 9Length tolerances for square-sheared metal in all widths 3000 mm and under.5.4.4 Table 10Length tolerances for sawed metal.5.5 StraightnessThe straightness tolerances which are the maximum edgewise curv
39、ature (depth of arc) in any 1800-mmportion of the total length, shall 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 12Straigh
40、tness tolerances for square-sheared metal.5.5.3 Table 13Straightness 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:TABLE 1 Thickness Tolerances(Applicable to Specifications B36/B36M
41、, B103/B103M, B121/B121M, B152/B152M, B465, B591, B592, B747, B888/B888M, and B888B936)Thickness, mm Thickness 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 700
42、mm 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 . . . .0.30 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
43、 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 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 0.303.5 5.0 0.08 0.10 0
44、.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 0.22 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 1.1B
45、248M 1735.6.1 Square Edges (Square Corners)Edges shall have commercially-squared corners with a permissible maximum radius asprescribed in Table 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 round
46、ed as shown in Fig. 2 with a radius as prescribed in Table 16.5.6.4 Full-Rounded EdgesEdges shall be full-rounded as shown 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 sheet and plate applicable to
47、Specifications B36/B36M, B96/B96M(Copper Alloy UNS No. C65500), B103/B103M, B122/B122M, B152/B152M, and B591.5.7.2 The weight of each lot of five or more plates or sheets of the same type and the same specified dimensions, when orderedto thickness, shall not vary from the theoretical by more than th
48、e amount prescribed in Table 18 for the product specificationindicated. The weight of any individual plate or sheet may vary from the nominal by not more than one third in excess of thetolerances prescribed in Table 18 for the product specification indicated. The tolerances for lots of less than fiv
49、e plates or sheetsshall be governed by the tolerances for individual plates or sheets.5.7.3 For the purpose of calculation, the densities of the materials covered by these specifications are listed in Appendix X2.TABLE 2 Thickness Tolerances(Applicable to Specifications B96/B96M, B122/B122M, B169/B169M, B194, B422B422/B422M, B534, B740, and B768)Thickness, mm Thickness 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, inW
