ASTM_B_248_-_12.pdf

Designation:B24812Standard 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 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 U.S.Department of Defense.1.Scope*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 suppliedunder each of the following product specifications issued byASTM:B36/B36M,B96/B96M,B103/B103M,B121/B121M,B122/B122M,B152/B152M,B169/B169M,B194,B422,B465,B534,B591,B592,B694,B740,B747,B768,andB888.21.2 UnitsThis specification is the companion specificationto SI Specification B248M;therefore,no SI equivalents areshown in this specification.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:3B36/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 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 Alloy Plate,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 of Electrical ConductorMaterialsB194 Specification for Copper-BerylliumAlloy Plate,Sheet,Strip,and Rolled BarB248M Specification for General Requirements for WroughtCopper and Copper-Alloy Plate,Sheet,Strip,and RolledBar(Metric)B422 Specification for Copper-Aluminum-Silicon-CobaltAlloy,Copper-Nickel-Silicon-Magnesium Alloy,Copper-Nickel-SiliconAlloy,Copper-Nickel-Aluminum-Magnesium Alloy,and Copper-Nickel-Tin Alloy Sheetand StripB465 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 BarB592 Specification for Copper-Zinc-Aluminum-CobaltAlloy,Copper-Zinc-Tin-IronAlloy Plate,Sheet,Strip,andRolled BarB694 Specification for Copper,Copper-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-Cobalt-Beryllium Alloy andCopper-Nickel-Beryllium Alloy Strip and Sheet1This specification is under the jurisdiction of the ASTM Committee B05 onCopper and Copper Alloys and is the direct responsibility of Subcommittee B05.01on Plate,Sheet,and Strip.Current edition approved April 1,2012.Published May 2012.Originallyapproved in 1951.Last previous edition approved in 2007 as B248 07.DOI:10.1520/B0248-12.2The UNS system for copper and copper alloys(see Practice E527)is a simpleexpansion of the former standard designation system 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 volume information,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 States1 B846 Terminology for Copper and Copper AlloysB888 Specification for Copper Alloy Strip for Use in Manu-facture of Electrical Connectors or Spring ContactsE8/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-erations 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