GENERAL TECHNICAL INFORMATION INSERT GRADES COATED CARBIDE, CERMET AND CARBIDE GRADES Grades ISO Application • For high speed turning of cast iron and steel. TT1300 K05 − K15 • Thick aluminum oxide coating on a high wear resistant substrate. CVD Coated • First choice for machining cast iron (Rough and Finish). TT7310 K05 − K15 • First choice for machining of ductile cast iron and cast iron. CVD Coated P05 − P15 • Special coating and though substrate for the best wear resistance. • High speed turning of steel. TT8115 P10 − P25 • Very high wear resistance. CVD Coated • First choice for finishing. • For high speed cutting in stainless steel. TT9215 M10 − M25 • Very high wear resistance. CVD Coated • First choice for finishing, particularly in continuous cuts. • Steel turning application. TT8125 P15 − P35 • Very good combination of wear resistance and toughness. CVD Coated • For finish to medium turning of steel. TT9225 M05 − M35 • For a wide range of turning in stainless steel. PVD Coated • Excellent combination of wear resistance & fracture toughness. TT5030 S05 − S20 • For a wide range of turning of high-temp alloys. PVD Coated M05 − M20 • Very hard submicron substrate with good fracture toughness. TT9020 P15 − P30 • For medium speed turning of stainless steel, exotic alloys and low carbon steel. TT9030 S15 − S25 M20 − M30 • Good combination of toughness and wear resistance. PVD Coated M15 − M35 • For a wide range of turning of sticky materials such as stainless steel and low carbon steel. TT5100 S15 − S35 • Excellent chipping resistance and sticking resistance. CVD Coated P20 − P40 • For finish and medium machining on stainless steel and low carbon steel. • For interrupted cutting of stainless steel. TT9235 M30 − M45 • Ideal grade for unstable conditions or low cutting speeds. CVD Coated • Very good fracture toughness. • Low speed turning of steel and stainless steel. TT7100 M25 M40 • Very tough substrate. CVD Coated P25 − P45 • For heavy roughing with interrupted cut. 1147