Grooving & Parting TUNGALOY GROOVE ACCELERATED PARTING AND GROOVING S TA N D A R D CUTTING CONDITIONS Cutting speed Feed: f (mm/rev) ISO Workpiece material Hardness Grade Vc (m/min) QGM QGS SteelsC45, 34CrMo4, etc. < 300 HB AH7025 50 - 180 0.05 - 0.35 0.04 - 0.2 Stainless steelX10CrNiS18-9, etc.< 200 HB AH7025 50 - 120 0.05 - 0.35 0.04 - 0.2 Gray cast ironGG25, 250, etc. - AH7025 50 - 180 0.05 - 0.35 0.04 - 0.2 Ductile cast ironsGGG45, 450-10S, etc.- AH7025 50 - 120 0.05 - 0.35 0.04 - 0.2 SuperalloysInconel718, etc. < HRC 40 AH7025 20 - 60 0.05 - 0.35 0.04 - 0.2 Titanium alloysTi-6Al-4V, etc. < HRC 40 AH7025 20 - 80 0.05 - 0.35 0.04 - 0.2 Tungaloy 19