A new evidence for the relationship between plastic strain range and cycles to failure under strain controlled cycling condition was reported in the previous paper. It was a divergence from Manson's linear relationship. In the present investigation analyses are undertaken from the various points of view, such as geometry of the specimen, hysteresis loop, dynamic strain hardening exponent, structural change of material and fractographic aspect. Following test conditions were used smooth and hour glass shaped specimen, completely reversed strain controlled condition, and triangular wave form. It was realized so far that the shape of hysteresis loop should be considered rather than accumulated plastic hysteresis energy to evaluate the low cycle fatigue life of high strength steel. The stress concentration factor of specimen and the phase transformation of material during fatigue test don't seem to be important factors in dealing with this phenomena.