# # SAE4140 Rc=49.5 Source: ElecFurnace ConCast, Normalized 1650F # Forged at 2150F reduced 83%, Quenched from 1550F in 150F oil # Tempered 500F, 100%Martensite, Inclu.: TypeA 0.5Thin, TypeD 1.0Heavy # Test: UoToledo #FileType= strain_life #DataType= raw #Name= SAE4140 #Name= AisiIt_76 #Stress_units= MPa #Strain_units= strain #Sy= 1669.2 #Su= 1924.3 #E= 206000 (avg. of 10) Reported was: 213000 #monotonic_K= 2625.9 #monotonic_n= 0.071 #FractureStrain= 0.163 #FractureStress= 1859. #%RA= 15.7 #MaterialForm= bar #FailureDef= 50% load drop #BHN= 477 #Hardness, Rockwell C= 49.5 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0199 44 1735 -36.3 0.01179 204000 #IGL (inside G.L.) 0.0199 48 1716 -33.2 0.01187 201000 #IGL 0.0199 64 1734 -37.1 0.01177 206000 #IGL 0.0099 402 1415 -27.3 0.00327 203000 #IGL 0.0099 562 1432 -26.9 0.00319 203000 #IGL 0.0099 608 1427 -17.3 0.00322 204000 #IGL 0.0065 3090 1248 8.5 0.00061 215000 #IGL 0.0065 3232 1251 83.6 0.00060 212000 #IGL 0.0065 4286 1256 -28.2 0.00059 205000 #IGL 0.0050 16228 1014 0.0 0.00000 0000 #IGL 0.0050 17166 1014 0.0 0.00000 202000 #IGL 0.0050 19234 1014 0.0 0.00000 0000 #IGL 0.0039 34458 804 0.0 0.00000 0000 #IGL 0.0039 63502 804 0.0 0.00000 0000 #IGL 0.0033 107000 679 0.0 0.00000 0000 #IGL 0.0033 132000 679 0.0 0.00000 0000 #IGL 0.0033 1618878 679 0.0 0.00000 0 #AKP knife edge 0.0033 3051802 679 0.0 0.00000 0000 #IGL 0.0028 10000000 575 0.0 0.00000 0000 #Runout 0.0028 10000000 575 0.0 0.00000 0000 #Runout #Basic Oxygen= False #Electric Furnace= True #Vacuum Degas= False #Ladle Refined= False #Ingot Cast= False #Continuous Cast= True #Martensite, %= 100 #Carbon, %= 0.41 #Manganese, %= 0.94 #Phosphorus, %= 0.01 #Sulfur, %= 0.012 #Silicon, %= 0.28 #Copper, %= 0.17 #Nickel, %= 0.15 #Chromium, %= 1.01 #Molybdenum, %= 0.22 #Aluminum, %= 0.028 #Tin, %= 0.010 #Nitrogen, ppm= 94 # #