GENERAL TECHNICAL INFORMATION CUTTING DATA CUTTING SPEED RANGE BY WORKPIECE MATERIAL AND CARBIDE GRADES Coated / Revêtu Uncoated / Non revêtu BrinellHB TT7010 TT9030 TT8010 CermetCT3000 Material Hardness Cutting speed / Vitesse de coupe (SFM) Carbon steel 0.2 %C 150 520 590 340 610 0.45%C 190 490 520 320 580 0.83%C 250 430 460 280 500 Alloy steel <200 430 430 280 500 200 - 250 390 390 260 460 275 - 325 310 330 200 360 325 - 375 260 260 170 310 375 - 425 200 200 130 230 Stainless steel Mart. 175 - 225 490 520 320 580 275 - 325 340 360 170 310 135 - 175 260 330 220 403 Aust. 375 - 425 230 260 150 270 Cast steel Carbon <150 490 560 320 580 150 - 200 360 360 240 420 Alloyed 200 - 250 330 330 210 380 Allié 250 - 300 260 160 170 310 Malleable iron Short chip / Copeau court 110 - 145 260 Long chip / Copeau long 200 - 250 330 Cast iron Low tensile /Forte résis. tract 180 430 Fonte grise High tensile / Faible résis. tract 250 330 Nodular iron Ferritic / Ferrite 160 430 Fonte modulaire Pearlitic / Perrique 250 330 Chilled cast iron 400 70 Fonte blanche Bronze alloy / Alliage bronze 120 - 200 390 Lead alloy / Alliage plomb 80 - 150 490 Brass & red / Lation & alliage rouge 60 - 110 390 Phosphor bronze / Bronze au phosphore 85 - 110 330 Aluminum alloys / Alliages d'aluminium 150 - 200 820 Aluminum alloys, cast / Alliages d'aluminium 980 GRADE INFORMATION GRADE NAME ISO CLASS GRADE DESCRIPTION P30 P20 - P30 Carbide grade for carbon and cast steels, works well at medium to low cutting speeds K10 or UF10 K10 - K30 Carbide grade for non ferrous metals, aluminum and cast iron TT6010 K10 - K20P10 ~ P25PVD TiN coated micrograin for free cutting untreated alloy steels (below 30 HRc), for stainless steels and cast iron TT7010 P15 - P35 PVD TiN coated grade for treated and hard alloy steels (25 HRc & up) at medium to low cutting speeds TT8010 P30 - P50K25 - K40PVD TiN coated grade for low cutting speed. Works well with wide range of stainless steels TT9030 P20 - P40 PVD TiAlN coated sub-micrograin grade for variety of materials. First choice grade. Works particularly well in stainless steelsK20 - K30and exotic materials at medium to high cutting speeds 1266