Grade : IC20

Used for semi finishing, finishing and semi roughing of aluminum, cast iron and stainless steel. An uncoated carbide grade.

PropertyValue
ISO Range - P/M/K(M10-M25)(K10-K20)
ISO Range - N/S/H (H05-H15)(S05-S20)(N05-N25)

PropertyValue
Grade or Coating TypeUncoated
Coating Layers Uncoated


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Cutting Speed for: GFN 4 IC20 - 6000320
ISOMaterialMaterial DesignationMaterial ConditionHardnessCutting Speed Recommendations (Vc)
P1Non-alloy steel and cast steel, free cutting steel <0.25%C.Annealed125 HB220-290 m/min
P2Non-alloy steel and cast steel, free cutting steel >=0.25%C.Annealed190 HB190-260 m/min
P3Non-alloy steel and cast steel, free cutting steel <0.55% CQuenched and tempered250 HB140-220 m/min
P4Non-alloy steel and cast steel, free cutting steel >=0.55% CAnnealed220 HB160-240 m/min
P5Non-alloy steel and cast steel, free cutting steel >=0.55% CQuenched and tempered.300 HB130-210 m/min
P6Low alloy and cast steel (less than 5% of alloying elements)Annealed200 HB160-240 m/min
P7Low alloy and cast steel (less than 5% of alloying elements)Quenched and tempered275 HB130-220 m/min
P8Low alloy and cast steel (less than 5% of alloying elements)Quenched and tempered300 HB130-210 m/min
P9Low alloy and cast steel (less than 5% of alloying elements)Quenched and tempered350 HB110-190 m/min
P10High alloyed steel, cast steel and tool steelAnnealed200 HB190-260 m/min
P11High alloyed steel, cast steel and tool steelQuenched and tempered325 HB110-190 m/min
P12Stainless steel and cast steelFerritic/martensitic200 HB120-250 m/min
P13Stainless steel and cast steelMartensitic240 HB110-230 m/min
M14Stainless steel and cast steelAustenitic, duplex180 HB100-220 m/min
K15Grey cast iron (GG)Pearlitic/ferritic180 HB60-105 m/min
K16Grey cast iron (GG)Pearlitic/martensitic260 HB45-75 m/min
K17Nodular cast iron (GGG)Ferritic160 HB55-95 m/min
K18Nodular cast iron (GGG)Pearlitic250 HB45-75 m/min
K19Malleable cast ironFerritic130 HB65-95 m/min
K20Malleable cast ironPearlitic230 HB55-85 m/min
N21Aluminum-wrought alloysNot hardenable60 HB335-965 m/min
N22Aluminum-wrought alloysHardenable100 HB250-670 m/min
N23Aluminum-cast alloys <=12% SiNot hardenable75 HB270-845 m/min
N24Aluminum-cast alloys <=12% SiHardenable90 HB185-515 m/min
N25Aluminum-cast alloys >12% SiHigh temperature130 HB175-315 m/min
N26Copper alloys >1% PbFree cutting110 HB165-315 m/min
N27Copper alloysBrass90 HB130-240 m/min
N28Copper alloysElectrolytic copper100 HB90-165 m/min
N29Non metallic.Duro& fiber plastics50-200 m/min
S31High temp. alloys Fe basedAnnealed200 HB25-35 m/min
S32High temp. alloys Fe basedHardened280 HB20-35 m/min
S33High temp. alloys Ni or Co basedAnnealed250 HB20-25 m/min
S34High temp. alloys. Ni or Co basedHardened350 HB15-20 m/min
S35High temp. alloys. Ni or Co basedCast320 HB15-20 m/min
S36Titanium (pure)Pure190 HB75-105 m/min
S37Titanium alloysAlpha+beta alloys, hardened310 HB20-45 m/min
H38Hardened steelHardened55 HRC20-35 m/min
H39Hardened steelHardened60 HRC20-30 m/min
H40Chilled cast ironCast400 HB25-45 m/min
H41Cast ironHardened55 HRC25-35 m/min

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