Table 3, F.A.Conle PhD Thesis:

G40.21-50A Steel, Smooth Specimen Tests using SAE (Keyhole) Full Length Histories tested in Strain Control. |Strain_max| is set to +-999 value in the histories.


History        |Strain_maxima|   Blocks to Failure
---------         ---------        -----------


Ford Suspension     0.0100          97.8
    "                 "             76
    "               0.0080         153
    "                 "            208
    "                 "            146

    "               0.0070         321
    "                 "            384
    "               0.0060         452
    "               0.0050         524
    "                 "            799
    "                 "            882
    "                 "           1256
    "               0.0045        1535
    "                 "           1429
    "                 "            882


Deere Transmission  0.0100          58
    "                 "             47
    "               0.0075         141
    "               0.0050         557
    "                 "            264
    "                 "            350
    "               0.0040         803
    "               0.0035        1826
    "               0.0030        3019
    "                 "          12619
    "                 "           5526

GM Bracket          0.0100           9.1
    "               0.0070          20.1
    "               0.0050          70.2
    "               0.0040         173
    "                 "            145
    "                 "            168
    "               0.0030         761

For a copy of the test histories used here: