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Machining Data for Solid Carbide Threading Endmills (MTECK, MTECM, MTECBF) ISOMaterial Condition Tensile Strength [ksi] Hardness HB Material Group No. Cutting Speed(m/min)Cutting DiameterFeed in/tooth2/16 1/8 1/6 1/4 1/3 1/3 3/8 1/2 5/8 3/4 1 1.25Pnon-alloy steel and cast steel, free cutting steel<0.25% C annealed 61 125 1 100-250 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079%u22650.25% C annealed 94 190 2 80-210 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079<0.55% Cquenched and tempered123 250 3 65-170%u22650.55% Cannealed 109 220 4 110-180 .0400 .0023 .0023 .0039 .0047 .0055 .0063 .0066 .0040 .0078 .0078 .0078quenched and tempered145 300 5 95-160 .0400 .0023 .0023 .0039 .0047 .0055 .0063 .0066 .0040 .0078 .0078 .0078low alloy and cast steel (less than 5% of alloying elements)annealed 87 200 6 90-160 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078quenched and tempered135 275 7 65-200 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078145 300 8 70-210 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078174 350 9 95-160 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078high alloyed steel, cast steel and tool steelannealed 99 200 10 130-170 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078quenched and tempered160 325 11 75-100 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078stainless steel and cast steelferritic / martensitic 99 200 12 110-170 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078martensitic 119 240 13 70-155 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078M stainless steel and cast steelaustenitic, duplex 87 180 14 85-110 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078Kgray cast iron (GG) ferritic / pearlitic 180 15 120-160 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079pearlitic / martensitic 260 16 75-160 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079nodular cast iron (GGG) ferritic 160 17 70-150 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079pearlitic 250 18 110-140 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079malleable cast iron ferritic 130 19 120-160 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079pearlitic 230 20 110-140 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0079 .0078 .0078 .0079Naluminumwrought alloysnot hardenable 60 21 160-300 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079hardenable 100 22 120-280 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079aluminumcast alloys%u226412% Sinot hardenable 75 23 150-350 .0023 .0031 .0031 .0047 .0055 .0063 .0066 .0078 .0078 .0078 .0078 .0079hardenable 90 24 130-320 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078>12% Si high temperature 130 25 100-250 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078copper alloys>1% Pb free cutting 110 26 110-280 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078brass 90 27 110-260 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078electrolytic copper100 28 90-200 .0400 .0400 .0023 .0023 .0031 .0039 .0039 .0047 .0055 .0063 .0040 .0078non metallicduroplastics, fiber plastics70 Shore D29 100-400 .0039 .0047 .0055 .0066 .0040 .0078 .0078 .0078 .0078 .0078 .0079 .0078hard rubber55 Shore D30 120-200 .0039 .0047 .0055 .0066 .0040 .0078 .0078 .0078 .0078 .0078 .0079 .0078Shigh temperature alloysFe based annealed 200 31 40-60 .0400 .0400 .0400 .0023 .0023 .0023 .0023 .0031 .0031 .0031 .0039 .0039hardened 280 32 30-50 .0400 .0400 .0400 .0023 .0023 .0023 .0023 .0031 .0031 .0031 .0039 .0039Ni or Co basedannealed 250 33 25-65 .0400 .0400 .0400 .0023 .0023 .0023 .0023 .0031 .0031 .0031 .0039 .0039hardened 350 34 25-60 .0400 .0400 .0400 .0023 .0023 .0023 .0023 .0031 .0031 .0031 .0039 .0039cast 320 35 20-40 .0400 .0400 .0400 .0023 .0023 .0023 .0023 .0031 .0031 .0031 .0039 .0039titanium alloyspure 58 190 36 25-63 .0400 .0400 .0400 .0023 .0023 .0023 .0023 .0031 .0031 .0031 .0039 .0039alpha+beta alloys, hardened152 310 37 20-80 .0400 .0400 .0400 .0023 .0023 .0023 .0023 .0031 .0031 .0031 .0039 .0039steelstainless steelcast ironnon-ferrous metalssuperalloys and titanium39MILLING