Каталог Iscar вращающийся инструмент 2017 - страница 498

USER GUIDE INDEXABLE DRILLS Material Groups Tensile Strength Hardness Material ISO Material Condition [N/mm2] HB No. < 0.25 %C Annealed 420 125 1 >= 0.25 %C Annealed 650 190 2 Non-alloy steel and cast steel, < 0.55 %C Quenched and tempered 850 250 3 free cutting steel >= 0.55 %C Annealed 750 220 4 Quenched and tempered 1000 300 5 P Annealed 600 200 6 Low alloy steel and cast steel 930 275 7 (less than 5% of alloying elements) Quenched and tempered 1000 300 8 1200 350 9 High alloyed steel, cast steel, Annealed 680 200 10 and tool steel Quenched and tempered 1100 325 11 Ferritic/pearlitic 180 15 Grey cast iron (GG) Pearlitic 260 16 Ferritic 160 17 K Nodular cast iron (GGG) Pearlitic 250 18 Ferritic 130 19 Malleable cast iron Pearlitic 230 20 • When using external coolant supply only, reduce cutting speed by 10%. • Use internal coolant supply when machining austenitic stainless steel. 494 ISCAR