# # SAE8620 Thru Carburized AISI Iter. 38 HRc=59 # Ispat Inland:BasicOxy. LadleRef. ConCast(381x508mm), # HotRolled to 82.6mm bar, Specimens machined, # thru carburized quenched from 1650F,tempered at 350, polished. # 100%Matensite # Chem.: 0.23wt%C .82Mn .011P .027S .25Si .02Cu .48Ni .50Cr # .18Mo .01V 0Nb .001Pb .003Ti .003Sn 40ppm_N # Inclusions: TypeD= 1 Thin, TypeA,B,C=none # Test: UoWaterloo, M.Khalil, T.Topper Jan.2001 #FileType= strain_life #DataType= raw #Name= SAE8620 #Name= AisiIt_38 #Name= ThruCarburized #Stress_units= MPa #Strain_units= strain #Sy= 920.0 #Su= 1202.0 #E= 202000 #eu= 0.011 strain at Su #monotonic_K= 2335.0 #monotonic_n= 0.122 #FractureStrain= 0.011 #FractureStress= 1150. #%RA= 1. #MaterialForm= bar #FailureDef= 50% load drop #BHN= 583 #Hardness, Rockwell C= 59 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0042 60 739 0.0 0.00056 201000 #None 0.0066 200 995 0.0 0.00166 202000 #None 0.0045 3284 827 0.0 0.00040 203000 #None 0.00175 6010 374 0.0 0.00000 214000 #None 0.0050 26272 883 0.0 0.00060 198000 #None 0.0040 29060 717 0.0 0.00044 200000 #None 0.0040 40000 725 0.0 0.00039 199000 #None 0.0030 105578 641 0.0 0.00000 201000 #None 0.0035 222640 606 0.0 0.00000 202000 #None 0.0030 291834 619 0.0 0.00000 203000 #None 0.0025 312856 506 0.0 0.00000 203000 #None 0.0027 346658 564 0.0 0.00000 195000 #None 0.0019 4597712 385 0.0 0.00000 207000 #None 0.0022 4710310 468 0.0 0.00000 213000 #None 0.0020 5109802 418 0.0 0.00000 209000 #None 0.00175 10000000 335 0.0 0.00000 192000 #Runout 0.00200 10000000 402 0.0 0.00000 201000 #Runout 0.00185 10000000 374 0.0 0.00000 202000 #Runout 0.00185 10000000 363 0.0 0.00000 196000 #Runout #Martensite, %= 100 #Carbon, %= 0.23 (prior to carburize) #Manganese, %= 0.82 #Phosphorus, %= 0.011 #Sulfur, %= 0.027 #Silicon, %= 0.25 #Copper, %= 0.02 #Nickel, %= 0.48 #Chromium, %= 0.5 #Molybdenum, %= 0.18 #Vanadium, %= 0.01 #Columbium/Niobium, %= 0.00 #Lead, %= 0.001 #Titanium, %= 0.003 #Tin, %= 0.003 #Nitrogen, ppm= 40 # #