1、Designation:B22/B22M17Standard Specification forBronze Castings for Bridges and Turntables1This standard is issued under the fixed designation B22/B22M;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A numbe
2、r 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 requirements for bronzecast
3、ings for turntables,movable bridges and bridge parts,andbronze castings suitable for use in bridges and other structuresfor fixed and expansion bearings in which motion is slow andintermittent.The following Copper Alloys are specified:UNSNo.C86300,C90500,C91100,C91300,and C93700.NOTE1Historically,th
4、e alloys in this specification have been used inthe applications listed in Appendix X1.Actual practice may vary.21.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.Within the text,SIunits are shown in brackets.The values stated in each systemmay not
5、 be exact equivalents;therefore,each system shall beused independently of the other.Combining values from thetwo systems may result in non-conformance with the standard.1.3 The following safety hazard caveat pertains only to thetest method(s)described in this specification:1.3.1 This standard does n
6、ot purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.4 This international standard was develo
7、ped 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 Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents
8、2.1 The following documents in the current issue of theBook of Standards form a part of this specification to the extentreferenced herein:2.2 ASTM Standards:3B824 Specification for General Requirements for CopperAlloy CastingsB846 Terminology for Copper and Copper AlloysE8/E8M Test Methods for Tensi
9、on Testing of Metallic Ma-terialsE9 Test Methods of Compression Testing of Metallic Mate-rials at Room TemperatureE10 Test Method for Brinell Hardness of Metallic MaterialsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)3.General Requirements3.1 The following section
10、s of Specification B824 form apart of this specification.In the event of a conflict between thisspecification and Specification B824,the requirements of thisspecification shall take precedence.3.1.1 Terminology,3.1.2 Other Requirements,3.1.3 Dimensions,Mass,and Permissible Variations,3.1.4 Workmansh
11、ip,Finish,and Appearance,3.1.5 Sampling,3.1.6 Number of Tests and Retests,3.1.7 Specimen Preparation,3.1.8 Test Methods,3.1.9 Significance of Numerical Limits,3.1.10 Inspection,3.1.11 Rejection and Rehearing,3.1.12 Certification,3.1.13 Test Report,3.1.14 Product Marking,3.1.15 Packaging and Package
12、Marking,3.1.16 Keywords,and1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.05 onCastings and Ingots for Remelting.Current edition approved April 1,2017.Published May 2017.Originallyapproved in 1936.Las
13、t previous edition approved in 2015 as B0022/B22M-15.DOI:10.1520/B0022_B0022M-17.This specification was prepared in cooperation with representatives of theAmerican Association of State Highway Officials and the American RailwayEngineering Association.2The UNS system for copper and copper alloys(see
14、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 Cust
15、omer 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 194
16、28-2959.United StatesThis international standard was developed in accordance 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.1 3.1.17 Supplementary Requirements.4.Terminology4.1 For definitions of terms related to copper and copperalloys,refer to Terminology B846.5.Ordering Information5.1
