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Grade : IC8250

A tough substrate with a cobalt enriched layer combined with MTCVD TiCN and a thick alpha Al2O3 CVD coating. Recommended for general use machining of steel in a wide range of conditions, featuring high toughness and wear resistance.

PropertyValue
ISO Range - P/M/K(P10-P35)(M05-M20)
ISO Range - N/S/H

PropertyValue
Grade or Coating TypeCVD
Coating Layers TiCN+Al2O3+TiN


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Cutting Speed for: GIPI 4.00E-0.40 IC8250 - 6405214
ISOMaterialMaterial DesignationMaterial ConditionHardnessCutting Speed Recommendations (Vc)
P1Non-alloy steel and cast steel, free cutting steel <0.25% CAnnealed125 HB195-260 m/min
P2Non-alloy steel and cast steel, free cutting steel >=0.25% CAnnealed190 HB170-235 m/min
P3Non-alloy steel and cast steel, free cutting steel <0.55% CQuenched and tempered250 HB135-200 m/min
P4Non-alloy steel and cast steel, free cutting steel >=0.55% CAnnealed220 HB145-220 m/min
P5Non-alloy steel and cast steel, free cutting steel >=0.55% CQuenched and tempered.300 HB115-185 m/min
P6Low alloy and cast steel (less than 5% of alloying elements)Annealed200 HB125-195 m/min
P7Low alloy and cast steel (less than 5% of alloying elements)Quenched and tempered275 HB115-195 m/min
P8Low alloy and cast steel (less than 5% of alloying elements)Quenched and tempered300 HB115-185 m/min
P9Low alloy and cast steel (less than 5% of alloying elements)Quenched and tempered350 HB105-170 m/min
P10High alloyed steel, cast steel and tool steelAnnealed200 HB170-235 m/min
P11High alloyed steel, cast steel and tool steelQuenched and tempered325 HB105-170 m/min
P12Stainless steel and cast steelFerritic/martensitic200 HB80-145 m/min
P13Stainless steel and cast steelMartensitic240 HB75-140 m/min
M14Stainless steel and cast steelAustenitic180 HB45-90 m/min
K15Grey cast iron (GG)Pearlitic/ferritic180 HB125-225 m/min
K16Grey cast iron (GG)Pearlitic/martensitic260 HB105-155 m/min
K17Nodular cast iron (GGG)Ferritic160 HB110-190 m/min
K18Nodular cast iron (GGG)Pearlitic250 HB90-150 m/min
K19Malleable cast ironFerritic130 HB140-235 m/min
K20Malleable cast ironPearlitic230 HB115-190 m/min

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