# # SAE4620 Thru-Carburized HRc=54, 100%Martensite, AISI Iter 54 # ElecFurnace, ConCast(175mm Billet), HotRoll to 47.6mmBar, Carburize # Chem.: 0.20wt%C .67Mn .008P .030S .20Si .19Cr 1.60Ni # .24Mo .16Cu .006Sn .027Al # ASTM grainSize=4to5, Inclusins: TypeA=2to2.5Thin, TypeB,C,D=none # Suspect lots of Retained Austenite transforming given the So. # Test: UoToledo, F.Yin, A.Fatemi, Aug.2002 #FileType= strain_life #DataType= raw #Name= SAE4620 #Name= AISIiter54 #Name= ThruCarburized #Strain_units= strain #Units= MPa #Sy= 1200 (differs from table) #Su= 1500 (differs from table) #eu= 0.012 strain at Su (avrg. of 2) #E= 210300 (avg. of 10) #TrueFractureStrain= 0.012 from graph #TrueFractureStress= 1500. from graph #%RA= 1.4 % #MaterialForm= bar #FailureDef= 50% load drop #BHN= 543 HRc= 54 #StrAmpl 2Nf StsAmp So PlasStrAmp IniEmod 0.0122 16 2108 -255.9 0.00215 209000 #IGL 0.0123 26 2125 -201.4 0.00216 212000 #IGL 0.0110 92 1998 -227.4 0.00146 209000 #IGL 0.0110 112 2102 -219.2 0.00138 209000 #IGL 0.00902 294 1766 -226.9 0.00062 210000 #IGL 0.00916 296 1866 -235.5 0.00029 213000 #IGL 0.00897 306 1758 -211.3 0.00061 206000 #IGL 0.00694 4836 1401 -210.5 0.00027 209000 #IGL 0.00697 5008 1404 -181.3 0.00029 216000 #IGL 0.00698 8590 1414 -276.7 0.00025 210000 #IGL #The Emods below are average of above 0.00500 63852 1034 0.0 0.00000 210300 #IGL 0.00500 81236 1034 0.0 0.00000 210300 #IGL 0.00500 82184 1042 0.0 0.00000 210300 #IGL 0.00400 189906 827 0.0 0.00000 210300 #IGL 0.00400 1005066 827 0.0 0.00000 210300 #IGL 0.00325 10000000 672 0.0 0.00000 210300 #Runout 0.00325 10000000 672 0.0 0.00000 210300 #Runout 0.00325 10000000 672 0.0 0.00000 210300 #Runout #Basic Oxygen= False #Electric Furnace= False #Vacuum Degas= False #Ladle Refined= False #Ingot Cast= False #Continuous Cast= False # #