# # SAE86B20 Simulated Carburized Core. Rc=43 100%Martensite # Material cyclically softens somewhat. # ElecFurnace, ConCast(184.2mm billet), HotRolled to 53.2mm bar. Spec. machined # then heated in vacuum to 1800F then Quenched +tempered # ASTM GrainSize T-T=11to 12, L-T= 10 to 11 # Inclusions: TypeA=2.5Thin, TypeBC=0 TypeD=1.5thin # Test: UoToledo, N.Cyril and A.Fatemi June2006 #FileType= strain_life #DataType= raw #Name= SAE86B20 #Name= SimulatedCore #Name= AisiIt_82 #Stress_units= MPa #Strain_units= strain #Sy= 1198.0 #Su= 1502.0 #E= 208600 avg. or 13 obsv. Initially reported 205900. #monotonic_K= 2192.8 #monotonic_n= 0.092 #FractureStrain= .909 #FractureStress= 3000 guestimated. Reported value of 968. seems too low. #%RA= 59.7 #MaterialForm= bar #FailureDef= 50% load drop #Hardness, Rockwell C= 43 #BHN= 401 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0199 328 1293 -24.3 0.01360 208000 #IGL 0.0199 366 1344 -29.2 0.01333 209000 #IGL 0.0199 374 1338 -27.8 0.01336 211000 #IGL 0.0100 2014 1160 -14.8 0.00436 206000 #IGL 0.0100 2130 1181 -16.4 0.00425 214000 #IGL 0.0100 2332 1164 -11.8 0.00435 208000 #IGL 0.0060 9650 1019 3.4 0.00108 210000 #IGL 0.0060 10778 1003 29.2 0.00113 209000 #IGL 0.0060 11798 1004 -5.5 0.00112 206000 #IGL 0.00449 25486 894 7.9 0.00015 207000 #None 0.00449 35712 891 -62.3 0.00016 208000 #IGL 0.00349 70000 725 64.9 0.00000 206000 #IGL 0.00350 102000 716 0.0 0.00000 208600 #IGL 0.00275 285402 562 0.0 0.00000 208600 #IGL 0.00225 9761216 459 0.0 0.00000 208600 #IGL 0.00225 10000000 459 0.0 0.00000 208600 #Runout #Basic Oxygen= False #Electric Furnace= True #Vacuum Degas= False #Ladle Refined= False #Ingot Cast= False #Continuous Cast= True #Martensite, %= 100 #Carbon, %= 0.19 #Manganese, %= 0.9 #Phosphorus, %= 0.018 #Sulfur, %= 0.029 #Silicon, %= 0.24 #Copper, %= 0.24 #Nickel, %= 0.36 #Chromium, %= 0.58 #Molybdenum, %= 0.2 #Aluminum, %= 0.021 #Titanium, %= 0.034 #Calcium, %= 0.00 #Boron, %= 0.002 #Tin, %= 0.010 #Oxygen, ppm= 12 #Nitrogen, ppm= 65 # #