Page 291 - Demo

289DEEP HOLE DRILLINGRecommendation for Insert Grade and Chipformer Type SelectionsSelection of an insert grade and chipformer type recommended to perform according to the table belo ISOMaterial ConditionTensileStrength[N/mm2]HardnessHBChipbreakerTroubleshootingFirst Choice Fracure WearPnon-alloy steel and cast steel, free cutting steel<0.25% C annealed 420 125GIC908BGIC806BIC9025%u22650.25% C annealed 650 190<0.55% C quenched and tempered 850 250%u22650.55% Cannealed 750 220quenched and tempered 1000 300low alloy and cast steel (less than 5% of alloying elements)annealed 600 200GIC908BGIC806BIC9025 quenched and tempered930 2751000 3001200 350high alloyed steel, cast steel and tool steelannealed 680 200GIC908BGIC806BIC9025 quenched and tempered 1100 325stainless steel and cast steelferritic / martensitic 680 200 GIC908BGIC806Bmartensitic 820 240 IC9025M stainless steel and cast steel austenitic, duplex 600 180 GIC806BIC908BIC9025Kgray cast iron (GG) ferritic / pearlitic 180GIC908GIC806BIC9025pearlitic / martensitic 260nodular cast iron (GGG)ferritic 160pearlitic 250malleable cast ironferritic 130pearlitic 230Naluminum-wrought alloysnot hardenable 60GIC908GIC806BIC9025hardenable 100aluminumcast alloys%u226412% Sinot hardenable 75hardenable 90>12% Si high temperature 130copper alloys>1% Pb free cutting 110brass 90electrolytic copper 100non metallicduroplastics, fiber plasticshard rubberShigh temperature alloysFe basedannealed 200BIC806BIC908BIC9025hardened 280Ni or Co basedannealed 250hardened 350cast 320titanium alloyspure RM 400alpha+beta alloys, hardened RM 1050Hhardened steelhardenedBIC806BIC908BIC908hardenedchilled cast iron cast 400cast iron hardened