A good cold work steel and also makes very good knives. Grade O1 (UNS T31501) is also available in these other forms - Bar Forging Plate Rod Rounds Sheet Slab Strip Tube ...

0.90% C, 1.0–1.4% Mn, 0.50% Cr, 0.50% Ni, 0.50% W. A good cold work steel and also makes very good knives. Grade O1 (UNS T31501) is also available in these other forms - Bar Drill Rod Plate Rod Rounds ...