# SAE1538MV as Hot-Rolled, AISI Iter. 131, HRc=30 # Constant Ampl. Axial specimen tests. # Gerdau Ht. 3M74155 ElecFurn, VacDegas, LadleRefine, RotaryCast # Hot Rolled 120mm bar, Specimens cut from As-HotRolled bar. # Chem.: 0.38wt%C 1.40Mn .015P .058S .56Si .14Cu .08Ni .16Cr .02Mo # .092V .002Nb .004Al .001Ti .0008Ca .008Sn 148ppm_N 1.9ppm_H2 # 75%Pearlite, 25%Ferrite. See fatigue Report for Micros. # Inclusion Rating TypeA= 2.50, B=0.25, C=0, D=0.50 # Tested by Z.Lopez UoToledo, 2012 #FileType= strain_life #DataType= raw #Name= SAE1538MV #Name= AsHotRolled #Name= AisiIt.131 #Units= MPa #Sy= 650.3 #Su= 973.4 #E= 197000 average of initial loadings, Tensile E=193200 #eu= 0.10 approx. from partial Tensile curve #monotonic_K= 1480.2 #monotonic_n= 0.142 #MaterialForm= bar #%RA= 28.3 % #%Elongation= 24.9 % #TrueFractureStress= 1039 #TrueFtractureStrain= 0.333 #BHN= 285 #StrAmpl 2Nf StsAmpl So PlsStrAmpl initialEmod 0.02001 246 893 -10 0.01538 190100 0.02008 256 859 -11 0.01563 191700 0.02007 292 917 -11 0.01532 202600 0.01 1386 756 -8 0.00607 194700 0.01 1432 802 -7 0.00587 210900 0.00993 1624 742 -9 0.00609 197900 0.00493 6986 650 3 0.00156 202600 0.00504 8338 660 -6 0.00162 206000 0.005 12446 658 -3 0.00159 187900 0.0035 23820 594 29 0.00042 206000 0.0035 50088 576 5 0.00052 183800 0.0035 74982 575 -36 0.00052 189800 0.0025 304336 500 1 0 197000 0.0025 531938 499 2 0 197000 0.0025 842082 500 1 0 197000 0.002 7672044 400 1 0 197000 0.002 10000000 390 1 0 197000 #runout 0.00175 10000000 338 1 0 197000 #runout #Carbon, %= 0.3800 #Manganese, %= 1.4000 #Phosphorus, %= 0.0150 #Sulfur, %= 0.0580 #Silicon, %= 0.5600 #Copper, %= 0.1400 #Nickel, %= 0.0800 #Chromium, %= 0.1600 #Molybdenum, %= 0.0200 #Vanadium, %= 0.0920 #Columbium/Niobium, %= 0.0020 #Aluminum, %= 0.0040 #Titanium, %= 0.0010 #Calcium, %= 0.0008 #Boron, %= 0.0001 #Tin, %= 0.0080 #Nitrogen, ppm= 148.0000 #Other= 1.9 ppm H2 # #