SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# SAE8620 Thru Carburized 100%Bainite, HRc=49
# MacSteel Ht M10367ElecFurn, LadleRef, ConCast(152x152mm) HotRoll 29.7mm bar.
# Specimens machined from the cylindrical bars and case carburized then
# reaustenitized and isothermally transformed at 600F for 240min.
# to achieve 0% martensite and 100%Bainite. No apparent Retained Aust.
# Original Chem.= 0.21wt%C .93Mn .009P .032S .25Si .15Cu .46Ni .50Cr
# .20Mo 0V 0Nb .024Al 0Pb .002Ti 0Ca .01Co 0Zr .0003B .01Sn
# 9ppm_O 63ppm_N
# Inclusions: TypeA=1.2T, TypeB=0.5T 0.3H, TypeC= 0.2T, TypeD=1.5T 0.5H
# Hardness traverse: Rc=51.8 near surface Rc=50 in core.
# Test: UoWaterloo, A.Rteil and T.Topper Nov.2006

#FileType= strain_life
#DataType= raw
#Name= SAE8620
#Name= ThruCarburized
#Name= AisiIt_95
#Stress_units= MPa
#Strain_units= strain
#Sy= 1566.0
#Su= 1785.0
#eu= 0.05 engr. strain at Su
#E= 196378   average of runout and near runout  Stress/Strain
#reported was #E= 207800  ?tensile test?
#monotonic_K= 2242.0
#monotonic_n= 0.058
#FractureStrain= 0.49 
#FractureStress= 2409.
#%RA= 39. %
#MaterialForm= bar
#FailureDef= 50% load drop
#Hardness, Rockwell C= 49
#BHN= 469
#Emod and Pls Strain updated  Jan 28 2017

#StrAmp     2Nf    StsAmp  So CalcPlasStr InitialModulus
0.0099        2326   1280   0   0.00338   196378  #7
0.00993       2436   1291   0   0.00336   196378  #8
0.00795       4822   1228   0   0.00170   196378  #5
0.00802       5072   1239   0   0.00171   196378  #4
0.00799       5654   1228   0   0.00174   196378  #6
0.00502      27048    977   0   0.00004   196378  #2
0.00501      51950    968   0   0.00008   196378  #1
0.00498      61980    966   0   0.00006   196378  #3
0.00399     137242    795   0   0.00000   196378  #9
0.004       300360    781   0   0.00002   196378  #11
0.00398     319090    778   0   0.00002   196378  #10
0.00274     468500    537   0   0.00001   195985  #16
0.00351    3202590    684   0   0.00003   194872  #13
0.00349    3620610    685   0   0.00000   196275   #12
0.003      8063888    592   0   0.00000   197333   #14
0.00251   10000000    496   0   0.00000   197610 #runout #19
0.00275   10000000    535   0   0.00003   194545 #runout #15
0.00248   10000000    492   0   0.00000   198387 #runout #17
0.00251   10000000    492   0   0.00000   196016 #runout #18

#Bainite, %= 100

#Carbon, %= 0.21
#Manganese, %= 0.83
#Phosphorus, %= 0.009
#Sulfur, %= 0.032
#Silicon, %= 0.25
#Copper, %= 0.15
#Nickel, %= 0.46
#Chromium, %= 0.5
#Molybdenum, %= 0.2
#Vanadium, %= 0.00
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.024
#Lead, %= 0.001
#Titanium, %= 0.002
#Calcium, %= 0.00
#Cobalt, %= 0.006
#Zirconium, %= 0.001
#Boron, %= 0.0003
#Tin, %= 0.006
#Oxygen, ppm= 9
#Nitrogen, ppm= 63
#
#