# AISI 20MnCr5 steel Q+T Simul.Carbur.Core (Section Controlled Cooling) HRc= 42 # Constant Ampl. Tests Aisi Iteration 130 # Gerdau Ht-M28513 Elec Furn. VacDegas LadleRefined, ConCast 152x152mm # HotRolled, Control Cooled 15.2mm bar, Simul. Carburized Core Axial Samples. # Bainite= 5% Martensite= 90% Ferrite=5% # Inclusion TypeA 1.5T 0.5H, TypeB 1.0T, 0.5H, TypeC 0T 0H, TypeD 1.0T 0.5H # Original Chem. Gerdau H-M28513: 0.20C 1.22Mn .008P .022S .23Si .18Cu # .09Ni 1.16Cr .05Mo .008V .003Co .029Al .0005Ca .0002B .009Sn 14ppmOxyg. # Tested by M.Yu UWaterloo 2011 revised 2016 #FileType= strain_life #DataType= raw #Name= 20MnCr5 #Name= AisiIter130 #Name= SimulCarbCore #Stress_units= MPa #Strain_units= strain #Sy= 1071 #Su= 1337 #eu= 0.055 engr. strain at Su #E= 194200 #monotonic_K= 1816.0 #monotonic_n= 0.085 #MaterialForm= bar #FailureDef= 50% load drop #TrueFractureStress= 2351. #TrueFractureStrain= 0.74 #%RA= 52 #%Elongation= 10.4 over 0.3inch #BHN= 388 #Hardness, Rockwell C= 42 #StrAmp 2Nf StsAmp So PlsStrAmp Emod 0.020880 284 1252 0.0 0.014420 194200 0.021090 316 1173 0.0 0.015030 194200 0.021090 344 1190 0.0 0.014940 194200 0.010450 1774 1138 0.0 0.004570 194200 0.010630 2020 1078 0.0 0.005060 194200 0.010630 2054 1033 0.0 0.005290 194200 0.005090 33920 871 0.0 0.000590 194200 0.005020 34940 862 0.0 0.000570 194200 0.004920 36800 854 0.0 0.000510 194200 0.004000 74120 743 0.0 0.000160 194200 0.004000 114748 754 0.0 0.000110 194200 0.002980 2583642 551 0.0 0.000140 194200 0.003740 3017370 695 0.0 0.000150 194200 0.003000 5742324 547 0.0 0.000170 194200 0.002810 10000000 533 0.0 0.000060 194200 #Runout 0.002970 10000000 549 0.0 0.000130 194200 #Runout 0.002840 10000000 540 0.0 0.000060 194200 #Runout 0.002810 10000000 526 0.0 0.000090 194200 #Runout # #