A myth in the knife world is that out there somewhere there is a super-steel with high performance cutting ability that doesn’t rust. A steel foundry in Japan made the myth a reality by intoducing H-1 steel. H1 steel is a PH steel meaning it is a precipitation-hardened steel. It’s naturally hard without heat-treating and with 1% nitrogen instead of carbon it cannot rust. H1 holds a sharpened cutting edge equivalent to many premium carbon steels but without developing rust or pitting.