USER GUIDE MATERIALS AND GRADES Milling Materials Grades Chart Grade ISO Grade Description Coating Layers Coating Color* P25-P45 A PVD coated tough grade followed by a special SUMOTEC IC845 surface treatment. Designed for milling alloyed steel, especially TiN when used for interrupted cuts and heavy operations. AlTiN Base M25-M40 A grade with a tough substrate, a with PVD coating and a special surface treatment. Designed for machining austenitic stainless TiSiN IC882 steel, Titanium and high temperature alloys, particularly under TiAlSiN S20-S30 hard cutting conditions. AlTiN Base P15-P30 M20-M30 A tough submicron grain size with a PVD coating coated grade. K20-K30 Suitable for medium to high cutting speeds. Designed for IC900 machining various materials like steel, stainless steel, Titanium, S10-S25 and heat resistant alloys. AlTiN H20-H30 Base P05-P15 M10-M15 Ultra-fine carbide grain, PVD coated with high resistance to K05-K15 IC902 abrasive wear, suitable for machining various materials including PVD COATED hard steel and cast iron, at high cutting speeds. S05-S10 AlTiN H05-H15 Base P10-P20 M15-M25 Ultra-fine carbide grain, PVD coated with high wear resistance K10-K20 and toughness. High speed, medium feed. Used for up to 62 IC903 HRC hardened steel, Titanium, nickel-based alloys and stainless S10-S20 steel. AlTiN H10-H20 Base P15-P30 M20-M30 A tough submicron grain size substrate with PVD coating, recommended for general use in a large variety of operations and K20-K30 IC908 materials such as steels, alloy steels, austenitic stainless steel and high temperature alloys at moderate cutting speeds. S10-S25 Features high wear resistance and chipping durability. TiAlN H20-H30 Base P15-P30 K15-K35 A PVD coated grade. First choice for milling gray and nodular cast IC910 iron at medium to high cutting speeds. AlTiN Base P20-P40 M25-M35 A tough substrate with PVD coating, suitable for machining steel and stainless steel at low to medium cutting speeds IC928 and moderate to high feeds. The grade is recommended for S15-S30 interrupted cuts and machining under unstable conditions. AlTiN Base * For coated grades 815