# AISI 20MnCr5 steel Q+T Simul.Carbur.Core (Section Controlled Cooling) HRc= 42 # NOTE!: Periodic Overload Tests for long life tests Aisi Iter 154 # Gerdau Ht.M28513 Elec Furn. VacDegas LadleRefined, ConCast 152x152mm # HotRolled, Control Cooled 15.2mm bar, Simul. Carb. 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. Chemistry revised 2016 #FileType= strain_life #DataType= raw #Name= 20MnCr5_POL #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 #Data pts above are Constant ampl. Iter 130 #Data pts below are from Periodic overload tests, iter.154 0.003 136154 581 0 0 194200 0.00286 313450 554 0 0 194200 0.00216 438238 419 0 0 194200 0.00188 798750 365 0 0 194200 0.00174 1027098 338 0 0 194200 0.0016 725184 311 0 0 194200 0.00146 1269674 284 0 0 194200 0.0014 7263596 270 0 0 194200 0.00133 2744538 257 0 0 194200 0.00126 6856716 243 0 0 194200 # #