# # Fitted Curve: Lots of scatter. Fitted curve placed near lower bounds # SAE41B17M (PS19)_ Aisi_It_73 Carburized case, Rc=61 BHN= 665 # ElecFurn. LadleRefined, IngotCast HotRolled 32mm Bar # Inclusions: TypeA 1T 0M, TypeB,C 0, TypeD 1.0T 0.5M, 100% Martensite # saedigcurve_v2.2.f starts. #FileType= strain_life #DataType= fitted #Name= SAE41B17M_(PS19) #Name= Aisi_It_73 #Name= CarburizedCase #Stress_units= MPa #Strain_units= strain #Sy= 1275.0 #Su= 1275.0 #E= 206000 #Changed. Was reported as 208000 #monotonic_K= 2180.0 #monotonic_n= 0.087 #TrueFracture_strain= 0.008 #TrueFracture_stress= 1275. #%RA= 1. #MaterialForm= bar #FailureDef= 50% load drop #BHN= 665 #Hardness, Rockwell C= 61 #Basic Oxygen= False #Electric Furnace= True #Vacuum Degas= False #Ladle Refined= True #Ingot Cast= True #Continuous Cast= False #Martensite, %= 100 #Carbon, %= 0.18 #Manganese, %= 1.13 #Phosphorus, %= 0.017 #Sulfur, %= 0.02 #Silicon, %= 0.26 #Copper, %= 0.18 #Nickel, %= 0.12 #Chromium, %= 0.52 #Molybdenum, %= 0.12 #Vanadium, %= 0.01 #Aluminum, %= 0.036 #Lead, %= 0.000 #Titanium, %= 0.042 #Calcium, %= 0.00 #Cobalt, %= 0.010 #Zirconium, %= 0.000 #Boron, %= 0.0023 #Tin, %= 0.010 #Nitrogen, ppm= 82 # SAE41B17M_ Aisi_It_73 BHN= 665 Fn= 0 # Monotonic Props. Cyclic Props. #ELAS. MOD.= 29878. KSI, 206. GPA K' =2850.8 KSI, 19655.MPA #YIELD,0.2%= 185. KSI, 1275. MPA N' = 0.3292 #ULT. STRG.= 185. KSI, 1275. MPA F. STRG COEF= 360.5 KSI, 2486.MPA #K = 0.0 KSI, 0. MPA F.STRG EXP, b=-0.1360 #N = 0.0000 FAT DUCT COEF= 0.0019 #RED. IN AREA = 1.0 F.DUCT EXP, c=-0.4132 #T. FRAC. STG.= 0.0 KSI, 0. MPA Exp Cyc Yld = 369. Ksi,2541.MPA #T. FRAC. STR.= 0.000 Fit Cyc Yld = 259. Ksi,1788.MPA #No. fatigue data points= 14 # # NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #Stress_Units= MPa # Total Strain 2Nf Stress Mean Plastic Strain Initial # Amp Amp Stress Amp Elastic Mod. 0.008 1 1275. 0. 0.0018 206000. #Fitted_point (tensile test) 0.0065 132 1200 0 0.00018 206000 #Fitted_point Manually. 0.0050 1010 1034 0.0 0.000101 206000 #Fitted_point Manually. .0030 5400 621 0.0 0.00000 206000 #Fitted_point Manually. 0.0020 174000 414 0.0 0.00000 206000 #Fitted_point Manually. 0.0020 10000000 414 0.0 0.00000 206000 #Fitted_point Manually. #