# # SAE4140 Quench+Temper HRc=40 # MacSteel:ElecFurn RotaryCast, HorRolled to 31.8mm Quench+Tempered # Martensite, %= 100 # Chem.: 0.42wt%C .93Mn .011P .021S .24Si .13Cu .25Ni .88Cr # .19Mo 0V .01Nb .024Al 0Ca .01Sn 90ppm_N # InclusionRating TypeA,B,C= 0, TypeD= 1.5 # Tested by A.A.Rteil UoWaterloo, 2003 #FileType= strain_life #DataType= raw #Name= SAE4140 #Name= Quench+Tempered #Name= AisiIt_65 #Stress_units= MPa #Strain_units= strain #Sy= 1305.6 #Su= 1400.5 #eu= 0.06 engr. strain at Su #E= 200300 #monotonic_K= 1680.2 #monotonic_n= 0.041 #FractureStress= 2057 #FractureStrain= 0.66 #%RA= 48.2 % #%Elongation= 22 % over 0.3inch #MaterialForm= bar #FailureDef= 50% load drop #Hardness, Rockwell C= 40 avg. of 3 #BHN= 375 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.01030 1780 898 0.0 0.00581 200000 #None 0.01021 1820 926 0.0 0.00558 203000 #None 0.01029 1960 910 0.0 0.00575 198000 #None 0.00619 5360 845 0.0 0.00197 201000 #None 0.00487 11200 859 0.0 0.00062 198000 #None 0.00491 16280 789 0.0 0.00093 200000 #None 0.00487 20800 825 0.0 0.00075 200000 #None 0.00394 59040 728 0.0 0.00031 203000 #None 0.00394 77200 783 0.0 0.00003 202000 #None 0.00392 94000 720 0.0 0.00032 196000 #None 0.00347 147200 691 0.0 0.00003 201000 #None 0.00346 152660 675 0.0 0.00009 200000 #None 0.00348 285520 693 0.0 0.00001 200000 #None 0.00317 360000 601 0.0 0.00017 203000 #None 0.00317 1409142 628 0.0 0.00003 200000 #None 0.00291 10000000 577 0.0 0.00000 202000 #Runout 0.00317 10000000 610 0.0 0.00012 198000 #Runout 0.00292 10000000 587 0.0 0.00000 199000 #Runout 0.00291 10000000 573 0.0 0.00000 203000 #Runout #Carbon, %= 0.42 #Manganese, %= 0.83 #Phosphorus, %= 0.011 #Sulfur, %= 0.021 #Silicon, %= 0.24 #Copper, %= 0.13 #Nickel, %= 0.25 #Chromium, %= 0.88 #Molybdenum, %= 0.19 #Vanadium, %= 0.00 #Columbium/Niobium, %= 0.01 #Aluminum, %= 0.024 #Calcium, %= 0.00 #Tin, %= 0.010 #Nitrogen, ppm= 90 #Here is the bottom part of the html graph/calc wrapper----------- # #