
USER GUIDE MATERIALS AND GRADES ISCAR Milling Grades Chart Grade ISO Grade Description Uncoated Layers Uncoated P10-P30 CERMET M10-M20 A tough cermet grade, suitable for machining steels and stainless steel at medium to high cutting speeds and low feeds. Features IC30N excellent surface finish, very good wear resistance and prevents built-up edge. H10-H25 Base A PCBN grade, suitable for finishing operations on hardened K05-K15 IB55 steels (45-65 HRC) and cast iron in continuous cutting and light interrupted cuts. CBN H10-H25 Base K01-K15 A PCBN grade, used for high speed machining of cast iron, IB85 cemented tungsten carbide, sintered metals, and heavy alloys. Excellent for interrupted cutting of hardened steel. S05-S10 H05-H10 Base A PCD brazed tip, suitable for machining aluminum alloys (Si < 12%) and other non-ferrous materials. Features very high wear PCD ID5 resistance with high toughness. N01-N10 Suitable for finishing operations and can be used for semi roughing operations and interrupted cuts. Base A ceramic SiAlON grade for machining high temperature alloys IS35 such as Inconel, Waspaloy and Rene. Provides high hardness with excellent toughness. S15-S25 Base CERAMICS A silicon nitride (Si3N4) grade, suitable for turning and milling K01-K15 IS8 applications. Can be used for interrupted cuts on cast iron and nickel-based alloys. Base A whisker-reinforced ceramic grade for machining high IW7 temperature alloys and hardened steel at high cutting speeds. S10-S20 H05-H25 Base 725