# # SAE1050M Hardened Typical Axle Shaft Case. HRc=54 # USS/Kobe Axles: BasicOxygen, LadleRef., ConCast(310x372mm) then # HotForged to 44mmBar, cold extruded to 31mm, Induc. Hardened. # specimens cut from close to surface of axle. i.e. Case # Chem.: 0.52%C .86Mn .021P .024S .27Si .01Cu .01Ni .05Cr .01Mo # .039Al .001Ti .01Ca .0024B 14ppm_O # Inclusions: TypeA=0.5, Type B,C,D=0, 100%Martensite, # Test: UoWaterloo, A.Varvani-Farahani, T.Topper May 1998 #FileType= strain_life #DataType= raw #Name= SAE1050M #Name= AisiIt_05 #Name= Induc.Hardened #Stress_units= MPa #Strain_units= strain #Sy= 2100.0 #Su= 2360.0 #eu= 0.045 engr. strain at Su #E= 220000 #monotonic_K= 3045.0 #monotonic_n= 0.072 #LowerYield= 1090 #UpperYield= 2050 #FractureStrain= 0.20 #FractureStress= 2115. #%RA= 14.7 #MaterialForm= bar #FailureDef= 50% load drop #BHN= 536 #Hardness, Rockwell C= 54 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0100 688 1745 0.0 0.00212 221000 #None 0.0100 1000 1745 0.0 0.00212 220000 #None 0.0100 1108 1723 0.0 0.00222 220000 #None 0.0065 8194 1350 0.0 0.00038 219000 #None 0.0065 8362 1387 0.0 0.00022 219000 #None 0.0065 8628 1365 0.0 0.00032 219000 #None 0.0060 10892 1296 0.0 0.00013 220000 #None 0.0060 15054 1287 0.0 0.00017 220000 #None 0.0060 20319 1261 0.0 0.00029 220000 #None 0.0050 42172 1061 0.0 0.00019 219000 #None 0.0050 55646 1101 0.0 0.00000 219000 #None 0.0050 63562 1066 0.0 0.00017 219000 #None 0.0045 227180 1105 0.0 0.00000 220000 #None 0.0045 246060 953 0.0 0.00017 220000 #None 0.0045 500000 955 0.0 0.00016 220000 #None 0.0040 5052800 860 0.0 0.00009 220000 #None 0.0040 8607800 857 0.0 0.00011 220000 #None 0.0040 10000000 835 0.0 0.00021 219000 #Runout #Martensite, %= 100 #Carbon, %= 0.52 #Manganese, %= 0.86 #Phosphorus, %= 0.021 #Sulfur, %= 0.024 #Silicon, %= 0.27 #Copper, %= 0.01 #Nickel, %= 0.01 #Chromium, %= 0.05 #Molybdenum, %= 0.01 #Vanadium, %= 0.00 #Columbium/Niobium, %= 0.00 #Aluminum, %= 0.039 #Titanium, %= 0.001 #Calcium, %= 0.01 #Boron, %= 0.0024 #Oxygen, ppm= 14 # #