These are some common tool steels used in knife production. The numbers for edge retention, toughness, and corrosion resistance are relative numbers drawn from various sources, including articles, reference sources, and various persons considered industry experts and influencers. The ratings are from 0-10 with 10 being the best. P/I stands for Powder or Ingot formed steels. Steel Edge Tough Corr P/I MFG Misc D2 5 4.5 4.5 Semi Stainless CPM-3V 5 8.5 5.5 P Crucible, USA CPM-4V 5 7 4 P Crucible, USA CPM-10V 8.5 5 4 P Crucible, USA CPM-15V 10 4 4 P Crucible, USA CPM-M4 8 6.5 3 P Crucible, USA Maxamet 10 1.5 5 P Carpenter, USA Cruwear 8 5 5 P Crucible, USA K390 8 5 4 P Bohler, Austria
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Performance Rankings of Blade Tool Steels
Posted by Don Farmer on