ASTM_B_179_-_14.pdf

Designation:B17914Standard Specification forAluminum Alloys in Ingot and Molten Forms for Castingsfrom All Casting Processes1This standard is issued under the fixed designation B179;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 covers commercial aluminum alloysin ingot form for remelting and molten form for the manufac-ture of castings.The specific gravity of these alloys does notexceed 3.0 and they are designated as shown in Table 1.NOTE1Throughout this specification the use of“ingot”in a generalsense includes sow,T-bar,T-ingot,and pig.1.2 Alloy designations are in accordance with ANSI H35.1/H35.1(M).The equivalent Unified Numbering System alloydesignations are in accordance with Practice E527.NOTE2Supplementary data pertaining to the alloys covered by thisspecification when used in the form of castings are given in SpecificationsB26/B26M,B85/B85M,B108/B108M,B618/B618M,B686/B686M,andB955/B955M.1.3 Unless the order specifies the“M”specificationdesignation,the material shall be furnished to the inch-poundunits.1.4 For acceptance criteria for inclusion of new aluminumand aluminum alloys in this specification,see Annex A1.1.5 The values stated in inch-pound units are to be regardedas standard.No other units of measurement are included in thisstandard.1.6 This standard does not 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.2.Referenced Documents2.1 ASTM Standards:2B26/B26M Specification for Aluminum-Alloy Sand Cast-ingsB85/B85M Specification for Aluminum-Alloy Die CastingsB108/B108M Specification for Aluminum-Alloy PermanentMold CastingsB618/B618M Specification for Aluminum-Alloy InvestmentCastingsB666/B666M Practice for Identification Marking of Alumi-num and Magnesium ProductsB686/B686M Specification for Aluminum Alloy Castings,High-StrengthB985 Practice for Sampling Aluminum Ingots,Billets,Cast-ings and Finished or Semi-Finished Wrought AluminumProducts for Compositional AnalysisB955/B955M Specification forAluminum-Alloy CentrifugalCastingsB969 Specification for Aluminum-Alloy Castings Producedby the Squeeze Casting,Thixocast and Rheocast Semi-Solid Casting ProcessesE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base AlloysE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)E607 Test Method for Atomic Emission SpectrometricAnalysis 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 Spectrochemical AnalysisE1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Spark Atomic Emission Spectrometry2.2 ANSI Standard:H35.1/H35.1(M)American National Standard Alloy andTemper Designation Systems for Aluminum41This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 1946.Last previous edition approved in 2011 as B179 111.DOI:10.1520/B0179-14.2For 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 referenced onwww.astm.org.4Available from Aluminum Association,Inc.,1525 Wilson Blvd.,Suite 600,Arlington,VA 22209,http:/www.aluminum.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 States1 TABLE 1 Chemical Composition Limits of Aluminum Alloys in Ingot and Molten Forms for All Casting ProcessesA,BThis Table has been reprinted by the permission of the Aluminum Association,Inc.Only composition limits which are identical to those listed herein or are registered with the Aluminum Association should be designated as“AA”alloys.NOTE1Where single units are shown,these indicate the maximum amounts permitted.NOTE2Analysis shall be made for those elements for which limits are shown in this table.NOTE3The following applies to all specified limits in the table:For purposes of acceptance or rejection an observed