Indexable milling Recommended cutting data Indexable milling – group 3 (FMR01/02/03/04) A Starting values for cutting speed vc [m/min] Machining group HC (CVD) Material group Composition / structure / heat treatment HB YBC302 YBC401 ae / D ae / D 1/1 | 3/4 1/5 1/20 1/1 | 3/4 1/5 1/20 Turning approx. 0,15 % C annealed 125 1 260 300 390 225 260 340 approx. 0,45 % C annealed 190 2 225 255 335 195 225 295 Unalloyed steel approx. 0,45 % C tempered 250 3 210 240 315 180 210 275 approx. 0,75 % C annealed 270 4 185 210 275 160 185 245 approx. 0,75 % C tempered 300 5 170 195 255 150 170 225 P annealed 180 6 225 255 335 195 225 295 tempered 275 7 185 210 275 160 185 245 B Low-alloyed steel tempered tempered 300 350 8 9 170 145 195 165 255 215 150 125 170 145 225 190 High-alloyed steel and high-alloyed annealed 200 10 130 150 195 115 130 170 tool steel hardened and tempered 325 11 95 105 140 80 95 125 ferritic/martensitic annealed 200 12 Milling martensitic tempered 240 13 M Stainless steel austenitic quench hardened 180 14 austenitic-ferritic 230 15 perlitic/ferritic 180 16 Grey cast iron perlitic (martensitic) 260 17 ferritic 160 18 K Cast iron with spheroidal graphite perlitic 250 19 C Malleable cast iron ferritic perlitic 130 230 20 21 cannot be hardened 60 22 Aluminium wrought alloys hardenable hardened 100 23 ≤ 12 % Si, cannot be hardened 75 24 Cast aluminium alloys ≤ 12 % Si, hardenable hardened 90 25 Drilling N > 12 % Si, cannot be hardened 130 26 machining steel, PB> 1% 110 27 Copper and copper alloys CuZn, CuSnZn 90 28 (bronze/brass) CuSn, Pb-free copper, electrolytic copper 100 29 annealed 200 30 Fe-based alloys hardened 280 31 Heat-resistant alloys annealed 250 32 D S Ni or Co bass hardened cast 350 320 33 34 pure titanium Rm 400 35 Titanium alloys α and β alloys hardened Rm 1050 36 Information Hardened steel hardened and tempered 55 HRC 37 Technical hardened and tempered 60 HRC 38 H Hard cast iron cast 400 39 Hardened cast iron hardened and tempered 55 HRC 40 Thermoplasts 41 Thermosetting plastics 42 Plastic, glass-fibre reinforced GFRP 43 X Non-metallic materials Plastic, carbon fibre reinforced CFRP 44 E Graphite Wood 45 46 Note: The given cutting values are guide values, which were determined under ideal conditions. The values have to be adapted in individual cases. Feed rate recommendations on page B248. For examples of material for cutting tool groups view page D22. Index B 232