# AISI 20MoCr4 steel Simul. Carbur.Case (Vacuum 36hrs) HRc= 60 # NOTE!! : Periodic Overload tests at long lives. # Gerdau H-M11652 Elec Furn. VacDegas LadleRefined, ConCast 152x152mm # Axial spec. from 30mm bar # Martensite= 100% # Original Chem. 0.21wt%C .75Mn .011P .026S .30Si .19Cu # .09Ni .48Cr .44Mo .005V .002Co .028Al .0008Ca .008Sn 98ppmNi # Tested by Yikai Yin UMDearborn, 2014 #FileType= strain_life #DataType= raw #Name= 20MoCr4_POL #Name= AisiIter142 #Name= SimulCarbCase #Stress_units= MPa #Strain_units= strain #Sy= 0 eu is below 0.2% offset #Su= 964.8 #eu= 0.006 strain at ultimate #E= 202700 #monotonic_K= 3998. #monotonic_n= 0.212 #FailureDef= 50% load drop #TrueFactureStress= 964 #TrueFactureStrain= 0.006 #BHN= 653 from Rockwell C= 60 #StrAmp 2Nf StsAmp So PlasStr IniEmod 0.004900 1836 908 -8.4 0.000000 203000 #IGL 0.003990 10334 813 -2.6 0.000000 204000 #IGL #Constant ampl test are shown above #Periodic overload tests are shown below 0.00175 31694 353.8 0 0 200400 0.00111 44096 226.1 0 0 205800 0.002 146152 408.7 0 0 204200 0.00105 138958 211.3 0 0 200600 # #