# # SAE5140 Q+T HRc=32.8 Bhn=305 AISI Iter. 31 # ElecFurn. ConCast(150x150mm), Heat Treated 1600F Quenched in Oil # 0.88inch bar. 100%Martensite, # Chem.: 0.43wt%C .81Mn .015P .033S .25Si .16Cu .09Ni .81Cr # .06V .0Nb .003Al 0Pb .002Ti 0Ca .78Co 0Zr 0B .010Sn # Inclusions: TypeA=2-2.5Thin, TypeB,C,D=none # Test: UoToledo F.Yin, A.Fatemi, July 2000. # #FileType= strain_life #DataType= raw #Name= SAE5140_QT #Name= AisiIt_31 #Stress_units= MPa #Strain_units= strain #Sy= 956.7 #Su= 1039.2 #eu= 0.058 engr. strain at Su #E= 209600 average of 17, initial reported=218000 #monotonic_K= 1276.1 #monotonic_n= 0.053 #MaterialForm= bar #FractureStrain= 0.80 #FractureStress= 1445. #%RA= 52.7 % #%Elongation= 28.3 % #FailureDef= 50% load drop #BHN= 305 #Hardness, Rockwell C= 32.8 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0198 564 892 -10.0 0.01572 211000 #IGL 0.0202 578 876 8.4 0.01615 209000 #IGL 0.0201 604 905 -6.7 0.01596 215000 #IGL 0.0099 2328 789 -9.9 0.00631 201000 #IGL 0.0099 2332 775 -7.1 0.00635 206000 #IGL 0.0100 2476 772 0.8 0.00641 201000 #IGL 0.0060 8094 706 -33.8 0.00273 215000 #IGL 0.0060 8826 692 -5.3 0.00281 208000 #IGL 0.0059 9332 716 -6.2 0.00265 211000 #IGL 0.0035 51820 621 15.9 0.00064 202000 #IGL 0.0035 55242 635 1.6 0.00058 210000 #IGL 0.00349 66512 639 -19.7 0.00055 214000 #IGL 0.00297 165908 602 57.7 0.00020 215000 #IGL 0.00275 305028 584 1.8 0.00006 214000 #IGL 0.00274 347718 574 24.8 0.00010 209000 #IGL 0.00201 10000000 424 0.0 0.00006 209600 #Runout 0.00201 10000000 424 4.6 0.00006 205000 #Runout 0.00201 10000000 424 0.0 0.00006 209600 #Runout #Martensite, %= 100 #Carbon, %= 0.43 #Manganese, %= 0.81 #Phosphorus, %= 0.015 #Sulfur, %= 0.033 #Silicon, %= 0.25 #Copper, %= 0.16 #Nickel, %= 0.09 #Chromium, %= 0.81 #Molybdenum, %= 0.04 #Vanadium, %= 0.06 #Columbium/Niobium, %= 0.00 #Aluminum, %= 0.003 #Lead, %= 0.000 #Titanium, %= 0.002 #Calcium, %= 0.00 #Cobalt, %= 0.780 #Zirconium, %= 0.000 #Boron, %= 0 #Tin, %= 0.010 # #