I love this game!
First is CPM S150V (which never left the factory because it was too hard to shape into anything usable!), then CPM MPL-1 (which isn't produced in bar stock form and thus has never been used in a knife, but is an amazing alloy), and more recently I've taken a fancy to Bohler's Vandis 60 (very similar to Rex 76, but should be slightly harder).
That last one should be usable in knives (thank goodness).
First is CPM S150V (which never left the factory because it was too hard to shape into anything usable!), then CPM MPL-1 (which isn't produced in bar stock form and thus has never been used in a knife, but is an amazing alloy), and more recently I've taken a fancy to Bohler's Vandis 60 (very similar to Rex 76, but should be slightly harder).
That last one should be usable in knives (thank goodness).