1、Designation:B955/B955M18Standard Specification forAluminum-Alloy Centrifugal Castings1This standard is issued under the fixed designation B955/B955M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number i
2、n parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers aluminum-alloy centrifugalcastings designated as shown in Table 1.1.2 This specification is for aluminum-alloy centrifu
3、galcastings used in general purpose applications.It may notaddress the mechanical properties,integrity testing,and veri-fication required for highly loaded or safety critical applica-tions.1.3 Alloy and temper designations are in accordance withANSI H35.1/H35.1(M).1.4 Unless the order specifies the“
4、M”specificationdesignation,the material shall be furnished to the inch-poundunits.1.5 For acceptance criteria for inclusion of new aluminumand aluminum alloys and their properties in this specification,see Annex A1 and Annex A2.1.6 UnitsThe values stated in either SI units or inch-pound units are to
5、 be regarded separately as standard.Thevalues stated in each system may not be exact equivalents;therefore,each system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the standard.1.7 This standard does not purport to address all of t
6、hesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.8 This international standard was developed in accor-dan
7、ce 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 Documents2.1 The followin
8、g documents of the issue in effect on thedate of casting purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B179 Specification for Aluminum Alloys in Ingot and Mol-ten Forms for Castings from All Casting ProcessesB275 Practice for Codification of Certain Zi
9、nc,Tin and LeadDie CastingsB557 Test Methods for Tension Testing Wrought and CastAluminum-and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought and CastAluminum-and Magnesium-Alloy Products(Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB666/B666M P
10、ractice for Identification Marking of Alumi-num and Magnesium ProductsB881 Terminology Relating to Aluminum-and Magnesium-Alloy ProductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesB985 Practice for Sampling Aluminum Ingots,Billets,Cast-ings and Finished or Sem
11、i-Finished Wrought AluminumProducts for Compositional AnalysisD3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base Alloys(Withdrawn 2017)3E94 Guide
12、for Radiographic Examination Using IndustrialRadiographic FilmE155 Reference Radiographs for Inspection of Aluminumand Magnesium CastingsE165 Practice for Liquid Penetrant Examination for GeneralIndustryE607 Test Method for Atomic Emission Spectrometric1This specification is under the jurisdiction o
13、f ASTM Committee B07 on LightMetals and Alloysand is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.Current edition approved May 15,2018.Published June 2018.Originallyapproved in 2007.Last previous edition approved in 2014 as B955/B955M 14.DOI:10.1520/B0955_B09
14、55M-18.2For 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.3The last approved version of this historical standard is r
15、eferenced onwww.astm.org.*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 accordance with internationally recognized principles on
16、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 Analysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere(Withdrawn 2011)3E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spark Atomic Emission Spec-trometryE1251 Test Method for Analysis