Grade : TT8125
CVD coated grade for general turning of steel machining with good combination of wear resistance and toughness

PropertyValue
ISO Range - P/M/K(P15-P30)
ISO Range - H/S/N
HRA91
Coating TypeCVD
Coating LayerTiCN-Al2O3-TiN



Cutting Speed for: CNMX 120508 HB TT8125 - 5523912
ISOMaterialMaterial DescriptionMaterial ConditionCutting Speed Recommendations
P1Non-alloy steel and cast steel, free cutting steel <0.25%C.Annealed :125230-480 m/min
P2Non-alloy steel and cast steel, free cutting steel >=0.25%C.Annealed :190200-420 m/min
P3Non-alloy steel and cast steel, free cutting steel <0.55%C.Quench and tempered. :250160-380 m/min
P4Non-alloy steel and cast steel, free cutting steel >=0.55%C.Annealed :220190-400 m/min
P5Non-alloy steel and cast steel, free cutting steel >=0.55%C.Quenched & tempered. :300150-350 m/min
P6Low alloy & cast steel (less than 5% of alloying elements).Annealed :200170-400 m/min
P7Low alloy & cast steel (less than 5% of alloying elements).Quenched & tempered :275140-250 m/min
P8Low alloy & cast steel (less than 5% of alloying elements).Quenched & tempered :300120-230 m/min
P9Low alloy & cast steel (less than 5% of alloying elements).Quenched & tempered :350110-200 m/min
P10High alloyed steel, cast steel and tool steel.Annealed :200140-280 m/min
P11High alloyed steel, cast steel and tool steel.Quenched & tempered :32570-130 m/min