# # SAE8615 Thru Hard Simulated Core. AISI Iter.155 Axial Samples, HRc=20 # Quench+Temper to simulate Core of a carburized specimen/component. # Gerdau Ht.M35300 ElecFurn, VacDegas, LadleRefined, ConCast HotRoll 31.8mm bar # Bainite 40% Martensite= 50% Ferrite= 10% # Chem.: 0.11C .84Mn .009P .035S .300Si .14Cu .40Ni # .60Cr .20Mo .005V .002Cb .030Al .007Sn 15ppm_O # Inclusion Rating: Type A=(sulfide) 2.5T 0.5H B=1.0T 0.0H C=0.5T 0.0H D=1.5T 0.5H # Tested by Yikai Yin U.Dearborn Apr.2014 #FileType= strain_life #DataType= raw #Name= SAE8615 #Name= Quench+Temper #Name= aisiIt_155 #Stress_units= mpa #Strain_units= strain #Sy= 753.2 #Su= 1011.0 #eu= 0.10 ?guestimated. engr strain at Su. Tensile curve shown is only a partial. #E= 204900 average initial loading. #monotonic_K= 1516.3 #monotonic_n= 0.109 #%RA= 61.5 #%Elongation= 36.5 % #TrueFractureStrain= 0.953 #TrueFractureStress= 1438 #MaterialForm= bar #FailureDef= 50% load drop #BHN= 226 #Hardness, Rockwell B= 97 #Hardness, Rockwell C= 19.6 #StrAmp 2Nf StsAmp So PlasStr Modulus 0.019880 456 888 -18.5 0.015500 203000 #IGL 0.019910 594 908 -17.7 0.015490 206000 #IGL 0.009880 2186 734 -14.2 0.006180 203000 #IGL 0.009770 3146 739 -14.2 0.006270 200000 #IGL 0.005990 12038 690 -15.1 0.002610 204000 #IGL 0.005980 12044 676 -14.2 0.002670 204000 #IGL 0.003990 39995 577 -23.4 0.001170 205000 #IGL 0.003990 47324 586 -24.5 0.001160 207000 #IGL 0.003000 69168 561 -20.1 0.000270 206000 #IGL 0.003000 107068 564 -20.6 0.000270 207000 #IGL 0.002500 263450 500 -4.3 0.000040 204000 #IGL 0.002500 277104 506 -5.5 0.000040 206000 #IGL 0.002000 10000000 403 0.0 0.000000 206000 #Runout 0.002000 10000000 403 0.0 0.000000 202000 #Runout #Carbon, %= 0.1100 #Manganese, %= 0.8400 #Phosphorus, %= 0.0090 #Sulfur, %= 0.0350 #Silicon, %= 0.3000 #Copper, %= 0.1400 #Nickel, %= 0.4000 #Chromium, %= 0.6000 #Molybdenum, %= 0.2000 #Vanadium, %= 0.0050 #Columbium/Niobium, %= 0.0020 #Aluminum, %= 0.0300 #Tin, %= 0.0070 #Oxygen, ppm= 15.0000 # #