New to knife application alloy technology. Looking for a high end metal for making higher order knife craftsman bayonette. Looking at the molecular compostion of 154cm or hitachi ATS 34 and 440c in comparison, it lookis like the 154cm will cut sharper and better edge wear than 440c. The higher Molydemun and mangnese content of 440c may integrate function more than the cutting function of Si and wavy matricier of Cr. The higer rockwell of 154cm should offset the greater inate alloy of 440c with the higher mn and mo content. The aligning function of C and it conductivity should be about the same. Looks like 154cm is a better inate blade material for sharper cutting and when heat treated and hardened should cut pound for pound than 440c which may when treated maybe ultimately breakage stronger than 154cm. My opinion-science specialist.