SAE-J444-2005

SAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.Copyright©2005SAEInternationalAllrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofSAE.TOPLACEADOCUMENTORDER:Tel:[phone](insideUSAandCanada)Tel:[phone](outsideUSA)Fax:[phone]Email:[e-mail]:—ThisSAERecommendedPracticepertainstoblastcleaningandshotpeeningandprovidesforstandardcastshotandgritsizenumbers.Forshot,thisnumbercorrespondswiththeopeningofthenominaltestsieve,intenthousandthsofinches1,precededbyanS.Forgrit,thisnumbercorrespondswiththesievedesignationofthenominaltestsievewiththeprefixGadded.ThesesievesareinaccordancewithASTME11.Theaccompanyingshotandgritclassificationsandsizedesignationswereformulatedbyrepresentativesofshotandgritsuppliers,equipmentmanufacturers,andautomotiveusers.1.1Rationale—ThisdocumenthasbeenreaffirmedtocomplywiththeSAE5-YearReviewpolicy.2.References2.1ApplicablePublication—Thefollowingpublicationformsapartofthisspecificationtotheextentspecifiedherein.2.1.1ASTMPUBLICATION—AvailablefromASTM,100BarrHarborDrive,WestConshohocken,PA19428-2959.ASTME11—StandardSpecificationsforWireClothSievesforTestingPurposes2.2RelatedPublications—Thefollowingpublicationsareprovidedforinformationpurposesonlyandarenotarequiredpartofthisdocument.ThelatestissueofSAEpublicationsshallapply.2.2.1SAEPUBLICATIONS—AvailablefromSAE,400CommonwealthDrive,Warrendale,PA15096-0001.SAEJ445—MetallicShotandGritMechanicalTesting—ForInformationonShotDurabilityDeterminationSAEJ827—CastSteelShot—ForInformationonCompositionandShapesSAEJ1993—CastSteelGrit—ForInformationonCompositionandShapesSAEJ2175—LowCarbonSteelShot—ForInformationonCompositionandShapes1.Example:S-550indicatesacaststeelshotidentifiedbyanominalsieveopeningof0.0555in.SAEJ444ReaffirmedJUL2005-2-3.TestingProcedure—SieveAnalysis3.1Equipment3.1.1Arotatingandtappingtypeoftestingmachineshallbeused.3.1.1.1Theshakingspeedshallbe275to295rpm.3.1.1.2Thetapsperminuteshallbe145to160whentappingmachinesareused.3.2Sieves3.2.1ThetestingsievesshallbeinaccordancewithASTME11.Theyshallbeofthe203mm(8in)diameterseries,ofeither25mm(1in)or51mm(2in)height.3.3Procedure3.3.1A100gsampleoftheshotorgritshallbeobtainedfromarepresentativequantity.3.3.2Thesampleshallbeplacedonthetopsieveofastackofthreeorfoursieves,dependingonmediaandsize(Figures1and2).Nesttheselectedsievesandfitapantothebottomsieve.3.3.3Thesampleshallberuninthetestingmachinefor5min±5sforsizesusingsievedesignation35orcoarserand10min±5sforsizesusingsievedesignationfinerthan35.3.3.4Thestackofsievesshallberemovedfromthetestingmachineandthepercentageoftotalweightshallberecordedforthemediaremainingoneachsieve.3.4Anyalternatemethodagreeduponbythesupplierandtheuserwhichgivesequivalentresultswillbeacceptable.PREPAREDBYTHESAESURFACEENHANCEMENTDIVISIONOFTHESAEFATIGUEDESIGNANDEVALUATIONEXECUTIVECOMMITTEESAEJ444ReaffirmedJUL2005-3-FIGURE1—CASTSHOTSPECIFICATIONSFORSHOTPEENINGORBLASTCLEANINGSAEJ444ReaffirmedJUL2005-4-FIGURE2—CASTGRITSPECIFICATIONSFORBLASTCLEANING