# 16MnCr5steel Carburized to DeepCase+core HRc=61.8 surface # 4-Point Bending Specimen ! AISI Bar Group Iteration 194 # Gerdau Ht.M54353 ElecFurn VacDegas LadleRef Concast HotRollBar 31mm # Original Chem.: 0.16C wt% 1.22Mn .018P .034S .07Si .23Cu .11Ni # 1.06Cr .040Mo .002V .002Columb .02Al # Note!: Bending Stress computed using Stress= Mc/I # where c=0.125in. I=0.00065104 in^4 # One subsurface initation spec. at 2Nf=465554 # U.Waterloo, Diogo Gaia, 2016 #FileType= strain_life #DataType= raw #Name= 16MnCr5 #Name= AISI-Iter194 #Name= DeepCase+Core #Stress_units= ksi #Strain_units= strain #Sy= 0. #Su= 0. #E= 30000 ksi !! estimated bending stress/strain #TrueFractureStrain= 0 #TrueFractureStress= 0 #%RA= 0 #MaterialForm= bar #FailureDef= 50% load drop #BHN= 688 #HRc= 62. #Note: Stresses below are bending stress = Mc/I #StrAmpl 2Nf StsAmp So PlsStr Sts/Str # ksi ksi 0.00753 686 202.1 0 0 26837 0.00729 10378 221.7 0 0 30417 0.00740 4330 229.2 0 0 30969 0.00737 3204 151.5 0 0 20557 0.00476 2000000 199.9 0 0 42002 #runout ?bad Emod 0.00630 7922 198.3 0 0 31470 #retest 0.00630 16908 200.6 0 0 31848 0.00630 21142 164.2 0 0 26066 0.00520 517778 173.1 0 0 33286 0.00553 465554 172.6 0 0 31213 #fisheye subsurf. init. 0.00551 178904 153.9 0 0 27932 0.00483 1906594 144.8 0 0 29977 0.00453 2000000 143.6 0 0 31699 #runout 0.00448 2000000 145.5 0 0 32482 #runout 0.00453 4000000 175.0 0 0 38629 #runout 0.00551 207960 154.4 0 0 28020 #runout 0.00483 2244114 235.9 0 0 48839 # ? bad emod 0.00752 2114 195.4 0 0 25981 0.00629 12016 191.8 0 0 30488 0.006 10026 185.3 0 0 30883 0.00581 25574 187.0 0 0 32184 0.00584 17510 202.1 0 0 34603 # #