# # SAE4620 Q+T to HRc=29.6 Simulated Core of Carburized process. # MacSteel: ElecFrunace, RotaryCast(175mmBillet), HotRoll to 48mmBar, # Machine to 0.5inch bar, Heat treat, Final machine, polish # Chem.: 0.20wt%C .67Mn .008P .03S .20Si .16Cu 1.6Ni # .19Cr .24Mo .027Al .010Sn # 50% Bainite, 50%Martensite, ASTMgrainSize=4to5, # Inclusions: TypeA=2.5Thin, TypeB,C,D=none # Test: UoToledo, F.Yin, A.Fatemi, March 2002 #FileType= strain_life #DataType= raw #Name= SAE4620 #Name= AisiIt_53 #Stress_units= MPa #Strain_units= strain #Sy= 891.5 #Su= 963.7 #eu= 0.05 engr. strain at Su #E= 208000 (avg. of 17) original reported=211000 #monotonic_K= 1199.8 #monotonic_n= 0.056 #FractureStrain= 0.97 #FractureStress= 1652 #%RA= 62. % #%Elongation= 43 % #MaterialForm= bar #FailureDef= 50% load drop #BHN= 289 #Hardness, Rockwell C= 29.6 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0199 244 887 6.7 0.01573 207000 #IGL 0.0197 358 860 -11.5 0.01566 204000 #IGL 0.0199 394 834 -9.5 0.01594 210000 #IGL 0.0096 1874 727 -4.5 0.00612 215000 #IGL 0.0099 2280 712 -3.8 0.00654 209000 #IGL 0.0099 2356 731 -5.8 0.00644 209000 #IGL 0.0060 7270 672 -4.8 0.00283 209000 #IGL 0.0060 7604 654 -2.1 0.00288 206000 #IGL 0.0060 8428 649 -1.4 0.00292 210000 #IGL 0.0040 20892 628 0.2 0.00102 207000 #IGL 0.0040 24888 628 0.1 0.00101 204000 #IGL 0.0040 29828 602 26.0 0.00112 203000 #IGL 0.0030 92200 575 29.6 0.00026 209000 #IGL 0.0030 127746 573 19.9 0.00027 211000 #IGL 0.0030 129972 563 85.2 0.00031 209000 #IGL 0.0023 10000000 466 0.0 0.00000 208000 #Runout 0.0023 10000000 467 1.4 0.00004 203000 #Runout Typo in So 0.0023 10000000 466 0.0 0.00000 208000 #Runout #ASTM Grain Size No. (Min to Max)= 4 to 5 #Carbon, %= 0.2 #Manganese, %= 0.67 #Phosphorus, %= 0.008 #Sulfur, %= 0.03 #Silicon, %= 0.2 #Copper, %= 0.16 #Nickel, %= 1.6 #Chromium, %= 0.19 #Molybdenum, %= 0.24 #Aluminum, %= 0.027 #Tin, %= 0.010 # #