SUJ2,Overview
Japan,JIS,standard,SUJ2,carbon,chromium,bearing,steel,,corresponding,to,the,country,signs,GCr15
SUJ2,carbon,chromium,bearing,steel,,full,hard,hardness,up,to,HRC58-61,,with,the,wear,resistance,of,the,bearing,,but,also,to,strengthen,the,steel,,good,workability,,and,direct,molding,process,,the,use,of,die,times,higher,than,that,of,SKD-61,(HRC52),full,hardware,2-3,times.,Dimensional,changes,in,the,quenching,and,tempering,small,,anti-fatigue,performance,is,quite,good.
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SUJ2,factory,hardness
Supply,Status:,61,~,64HRC,annealing,of,hot-rolled,(wrought),,not,annealed,,annealed,skinned,steel,,cold,drawn,(rolled),round,steel,,polished,round,steel,,hot-rolled,steel,annealing,skinned,steel,pipe,,cold,drawn,(rolled),steel,pipe,eight,kinds,of,state,delivery
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SUJ2,features
Good,overall,performance.,Quenching,and,tempering,of,high,hardness,,uniform,,high,wear,resistance,and,contact,fatigue,strength.,Hot,workability,good,workability,after,spheroidization,annealing,,but,sensitive,to,the,formation,of,white,spots
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SUJ2,use
,,For,general,plastic,mold,,automotive,,machine,tool,bearings,,ball,,roller,,bush,,cold.
Manufacture,of,internal,combustion,engines.,On,the,drive,shaft,of,motor,vehicles,,machine,tools,,tractors,,rolling,mill,equipment,,drilling,machines,,railway,vehicles,,and,mining,machinery,such,as,ball,,roller,and,sleeve.


SUJ2,heat,treatment
Heat,Treatment,Specification:,850,~,860,℃,quenching,oil,cooling,,160,℃,tempering,2h.
Microstructure:,tempered,martensite