Over 600 individual tests were conducted over 4 years comparing Friction Forged® blades against the exact same blade style but made up of 13 different steels. These other test steels were 1095, BG42, AISI 01, AISI A2, 5160, 52100, 154CM, ZDP-189, 440C, D2, CPMS90V, CPMS30, and Talonite. It is far beyond the scope of this introduction to Friction Forging® to report all these results. We will however, show results comparing Friction Forged® blades to "best processed" D2, CPM90V and CPMS30 as the S90 and S30 were the steels that came the closest to Friction Forged® blade performance. Our definition for “best processed” is we obtained and followed mill heat-treat and tempering data sheets for each material. The D2 steel results were included to show the dramatic performance increase in that steel due to Friction Forging®. The D2, S90 and S30 all had HRc values between 59-61 and all had cryogenic "deep freeze" treatments.