Application Guide P M K N S H Carbon Steels AlloyList No.Low10101018Med.10351045HighSteelsDie10654140Steels4340Stainless SteelsCastIron30040017-4 PHAluminumNickelAlloyTitaniumHardened Steels60617075CastingInconel6Al4V(30 HRC)~35HRC35-4545-5050-70HRCHRCHRC ≤5D 6610 6510 5210 5610 5955Ni 5171 5320 HP245 HP255 215 220D 233 200 1950 2000 1700 1800 1650 1500 1600 good best WWW.OSGTOOL.COM Illustrated Index/Application Guide 55