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