# # SAE4140 Q+T .021 Sulfur, Periodic Overload Tests! HRc=42.5 # Forged the Quenched from 1550F into 150F Oil, Temp 750F # MacSteel Ht.M17300 ElecFurn, ConCast, Normalized 1650, Forged 2150 82% REDUC. # Chem.: 0.41wt%C .94Mn .01P .021S .28Si .17Cu .15Ni 1.01Cr # 0.22Mo .028Al .010Sn 94ppm_N 100%Martensite # Inclus.: TypeA 0.5T OH, TypeB 0T OH, TypeC 0T 0H, TypeD(glob.) 1.0T 1.0H # File is a combination Iter.80 short life+ Iter.117 # Test: J.Lindsey UoToledo 2011 #FileType= strain_life #DataType= raw #Name= SAE4140-POL #Name= AisiIt_117+80 #Stress_units= MPa #Strain_units= strain #Sy= 1290.7 #Su= 1380.4 #E= 209420 avrg of 10 initial. Reported 206400 from tensile. #eu= 0.042 engr. strain at Su #monotonic_K= 1628.5 #monotonic_n= 0.038 #LowerYield= 1282.2 #UpperYield= 1287.9 #FractureStrain= 26.9 #FractureStress= 1385. #%RA= 23.6 % #%Elongation- 23 % over 0.3inch gauge. #MaterialForm= bar #FailureDef= 50% load drop #BHN= 394 #Hardness, Rockwell C= 42.5 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0199 166 1197 -19.8 0.01406 210000 #IGL 0.0199 200 1184 -19.0 0.01414 210000 #IGL 0.0100 700 1057 -16.2 0.00488 213000 #IGL 0.0100 1490 988 -12.3 0.00518 214000 #IGL 0.0100 1732 978 -11.2 0.00521 207000 #IGL 0.0064 4564 894 -1.7 0.00211 210000 #IGL 0.0050 11054 865 46.8 0.00080 207000 #IGL 0.0049 12850 840 27.0 0.00087 210000 #IGL 0.0050 16194 858 -50.1 0.00083 207000 #IGL 0.0038 52070 776 0.0 0.00000 209420 #IGL avg E 0.0038 58158 776 0.0 0.00000 209420 #IGL avg E 0.0038 64596 776 0.0 0.00000 208000 #IGL #0.0033 100142 672 0.0 0.00000 209420 #IGL avg E, Not used in POL #0.0033 116410 672 0.0 0.00000 209420 #IGL avg E, Not used in POL #0.0033 193972 672 0.0 0.00000 209420 #IGL avg E, Not used in POL #0.0028 2808070 569 0.0 0.00000 209420 #IGL avg E, Not used in POL #0.0028 10000000 563 0.0 0.00000 209420 #Runout, Not used in POL #Tests above are from Const. Ampl. Iter.80 #Tests below are from POL Iter.117 .00332 10668 653 195 .00016 209420 #IGL .00325 59356 653 195 .00009 209420 #IGL ,00322 53632 653 195 .00006 209420 #IGL .00322 88234 653 195 .00006 209420 #IGL .00211 102424 413 435 .00011 209420 #IGL .00207 108778 413 435 .00007 209420 #IGL .00106 501668 207 642 .00005 209420 #IGL .00106 540812 206 642 .00006 209420 #IGL .00062 5774516 123 727 .00003 209420 #IGL .00062 8544508 123 727 .00002 209420 #IGL .00062 50078804 124 728 .00002 209420 #IGL #Electric Furnace= True #Continuous Cast= True #Martensite, %= 100 #Carbon, %= 0.41 #Manganese, %= 0.94 #Phosphorus, %= 0.01 #Sulfur, %= 0.012 #Silicon, %= 0.28 #Copper, %= 0.17 #Nickel, %= 0.15 #Chromium, %= 1.01 #Molybdenum, %= 0.22 #Aluminum, %= 0.028 #Tin, %= 0.010 #Nitrogen, ppm= 94 #Here is the bottom part of the html graph/calc wrapper----------- # #