More information on MagnaCut:
MagnaCut is a powder metallurgy stainless steel which has high edge retention, toughness, and corrosion resistance. It contains vanadium and niobium which form carbides to allow edge retention and toughness simultaneously, two properties that are typically inversely corellated. I choose to heat treat my MagnaCut to 62-63 HRC to maximize the toughness and the hardness of my blades. Since the edge retention mainly comes from the carbides, lowering the hardness from 64 HRC+ to 62.5 doesn’t effect the edge retention too much, but improves the toughness significantly. This results in an extremely balanced blade that can keep its edge for a very long time while also being resistance to chipping.