1、Designation:B248M07 Designation: B248M 12Standard 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 ofor
2、iginal adoption 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
3、Defense.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
4、rolled bar supplied 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, B591, B592,B694, B740, B747, and , B768, and B888.21.2 UnitsThis specification is the companion specification
5、to inch-pound Specification B248.2. 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:3B36/B36M Specification for Brass Plate, Sheet, Strip, And Rolled BarB96/B96M Sp
6、ecification for Copper-SiliconAlloy Plate, Sheet, Strip, and Rolled Bar for General Purposes and Pressure 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 C
7、opper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel AlloyPlate, Sheet, Strip, 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
8、 of Electrical Conductor MaterialsB194 Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled BarB248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled BarB422 Specification for Copper-Aluminum-Silicon-Cobalt Alloy, Copper-Ni
9、ckel-Silicon-Magnesium Alloy, Copper-Nickel-Silicon Alloy, Copper-Nickel-Aluminum-Magnesium Alloy, 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 A
10、lloy Plate, Sheet, Strip, and Rolled BarB591 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 Copp
11、er, Copper-Alloy, Copper-Clad Bronze (CCB), Copper-Clad Stainless Steel (CCS), 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
12、for Copper-Cobalt-Beryllium Alloy and Copper-Nickel-Beryllium Alloy Strip and SheetB846 Terminology for Copper and Copper Alloys1This 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
13、Strip.Current edition approved Oct.April 1, 2007.2012. Published October 2007.May 2012. Originally approved in 1980. Last previous edition approved in 20062007 asB248M 067. DOI: 10.1520/B0248M-07.10.1520/B0248M-12.2The UNS system for copper and copper alloys (see Practice E527) is a simple expansion
14、 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 at serv
15、iceastm.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 version.
16、 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 section
17、appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.B888 Specification for Copper Alloy Strip for Use in Manufacture of Electrical Connectors or Spring ContactsE8/E8M Test Methods for Tension Testing of
18、 Metallic Materials MetricE18 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
19、aterialsE53 Test Method for Determination 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 an
20、d Copper-Nickel-Zinc AlloysE106 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 Sampli
21、ng 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 Numbering System (UNS)3. Terminology3.1 For definitions of terms related to copper and copper alloys, refer to
22、 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 “flatproduct” usually refers to a coil in which the product is spirally wound, with the successive layers on top
23、 of one another.(Sometimes called a “roll.”)3.2.2 lengths, mill, nstraight lengths, including ends, that can be conveniently manufactured in the mills. Full length piecesare usually 2400, 3000, or 3600 mm and subject to established length tolerances.3.2.2.1 lengths, stock, nstraight lengths that are
24、 mill cut and stored in advance of orders. They are usually 2400, 3000, or 3600mm and subject to established length tolerances.3.2.3 rolled bar, na rolled flat product over 5 mm thick and up to and including 300 mm wide, with sheared, sawed, ormachined edges, in straight lengths or coils (rolls).4.
25、Materials and Manufacture4.1 MaterialsThe: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 product specification listed in Section 1.4.1.2 When specified in the contract or purchase order that the
26、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 or working, cold working and annealing process as to producea uniform wrought structure in the finished product.4.2.2 The produc
27、t shall be hot or cold worked to the finished size and subsequently annealed,annealed when required, to meetthe temper properties specified.4.3 EdgesThe edges shall be slit, shared, sawed, or rolled edges, as specified. Slit edges shall be furnished unless otherwisespecified in the contract or purch
28、ase order. See 5.6 for edge descriptions and corresponding tables for tolerances.5. Dimensions, Mass, and Permissible Variations5.1 GeneralFor the purpose of determining conformance with the dimensional requirements prescribed in this specification,any measured value outside the specified limiting v
29、alues for any dimension may be cause for rejection.NOTE 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 specifying thickness shall be in decimal fractions of a millimetre. For mat
30、erial 0.50 mmand under in thickness, it is recommended that the nominal thicknesses be stated not closer than the nearest 0.01 mm. A list ofpreferred thicknesses is shown in Appendix X1. The thickness tolerances shall be those shown in Tables 1-3 for the productspecification indicated:5.2.1 Table 1T
31、hickness 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,B740, and B768.5.2.3 Table 3Special thickness toleran
32、ces applicable to Copper Alloy UNS No. C72500 when ordered to SpecificationB122/B122M, and to Specifications B194, B534, B740, and B768 as noted in the table.B248M 1225.3 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):
33、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 of plate, sheet, strip, or rolled bar as specified
34、. 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 Table 8.5.4.1 Table 7Length tolerances for straight l
35、engths.5.4.2 Table 8Schedule of minimum length and maximum weight of ends for lengths with ends. Schedule of minimumTABLE 1 Thickness Tolerances(Applicable to Specifications B36/B36M, B103/B103M, B121/B121M, B152/B152M, B465, B591, B592, and B747 and B888)Thickness, mm Thickness Tolerances, Plus and
36、 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 0.007 0.015 . . . . .0.10 0.2
37、0 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 0.12 0.151.0 1.3 0.05 0.06
38、 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 0.30Rolled 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
39、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, B534, B740, and B768)Thickness, mm Thickness Tolerances, Plus and Minu
40、s, 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 0.01 0.02 . . . . .0.10 0.20 0.015
41、 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 0.18 0.20 0.251.3 2.0 0.08 0.10 0.
42、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 0.40 0.50 0.60 0.65 0.75 0.9530.0
43、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 123length and maximum weight of ends for mill lengths, specific lengths with ends, and stock lengths with ends.5.4.3 Table 9Length tolerances for square-sheared metal. Length tolerances for square-sheared metal in
44、all widths 3000mm 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 1800-mmportion of the total length, shall be those shown in Tables 11-13 depending on the type of edge required.5.5.1
45、 Table 11Straightness tolerances for metal as slit, or as slit and straightened, or as slit and edge-rolled, or metal withdrawn edges.TABLE 3 Special Thickness TolerancesThickness, mmTolerances Applic-able to Copper AlloyUNS No. C72500,SpecificationsB122/B122M andB740 Tolerances,Plus andMinus,Amm fo
46、rStrip 200 mm andUnder in WidthTolerances Applica-ble to SpecificationsB194, B534, B740, andB768 Tolerances, Plusand Minus,Ammfor Strip 100 mmand Under inWidth0.10 and under 0.005 0.005Over 0.10 to 0.16, incl 0.008 0.008Over 0.016 to 0.22, incl 0.010 0.013Over 0.22 to 0.35, incl 0.013 0.015Over 0.35
47、 to 0.45, incl 0.018 0.018Over 0.45 to 0.55, incl 0.020 0.020Over 0.55 to 0.60, incl 0.025 0.025Over 0.65 to 0.80, incl 0.033 0.025Over 0.80 to 1.2, incl 0.038 .AIf tolerances are specified as all plus or all minus, double the values given.TABLE 4 Width Tolerances for Slit Metal and Slit Metal with
48、Rolled Edges(Applicable to all specifications listed in 1.1)Width, mmWidth Tolerances,APlus and Minus, mmFor Thicknesses0.102 to 0.80 mm, inclFor ThicknessesOver 0.80 to 3.2 mm, inclFor ThicknessesOver 3.2 to 5.0 mm, inclFor ThicknessesOver 5.0 to 12.0 mm, incl50.8 and under 0.13 0.25 0.30 0.38Over
49、50.8 to 200, incl 0.20 0.33 0.38 0.38Over 200 to 600, incl 0.40 0.40 0.40 0.79Over 600 to 1270, incl 0.79 0.79 0.79 1.19AIf tolerances are specified as all plus or all minus, double the values given.TABLE 5 Width Tolerances for Square-Sheared Metal(Applicable to all specifications listed in 1.1)NOTE 1All lengths up to 3.05 m, inclusive.Width, mmWidth Tolerances,APlus and Minus, mm1.59 mmand Underin Thick-nessOver 1.5 mmto 3.5 mm,incl, inThicknessOver 3.5mm inThickness500 and under 0.79 1.2 1.6Over 500 to 900, incl 1.2 1.2 1.6Over 900 to 3000, incl 1.6
