Page 88 of Bore Line Hole Making by Ingersoll Cutting Tools

i ingersoll iso material groups cont iso material condition tensile strength kpsi 61 94 123 109 145 87 135 145 174 99 160 99 119 87 hardness hb 125 190 250 220 300 200 275 300 350 200 325 200 240 180 180 260 160 250 130 230 60 100 75 90 130 110 90 100 material number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 non alloy steels steel castings free machining steel p <0.25 c 0.25 c <0.55 c 0.55 c 0.55 c low alloy steels and steel castings less than 5 of alloying elements annealed annealed quenched tempered annealed quenched tempered annealed quenched tempered m k high alloy steels steel castings tool steels stainless steels and stainless steel castings nodular cast iron ggg grey cast iron gg malleable cast iron aluminum wrought alloy cast aluminum alloyed 12 si 12 si copper alloys non metallic fe based n s high temp alloys ni or co based titanium and ti alloys annealed quenched tempered ferritic/martensitic martensitic austenitic p.h ferritic pearlitic pearlitic ferritic pearlitic ferritic pearlitic as cast forged as cast forged high temperature free cutting brass electrolitic copper duroplastics fiberplastics hard rubber annealed cured annealed cured cast alpha+beta alloys cured 200 280 250 350 320 58 152 55 hrc 60 hrc 400 55 hrc hardened steel h =p chilled cast iron cast iron =m =k =n =s =h cast hardened 88

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