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Machining Data for Solid Carbide Drills - IC608 D=.118”-.787”

I N C H
Tensile
Strength Hardness Material
ISO Material Condition [Kpsi] HB No.
< 0.25 %C Annealed 61 125 1
>= 0.25 %C Annealed 94 190 2
Non-alloy steel and cast < 0.55 %C Quenched and tempered 123 250 3
steel, free cutting steel
>= 0.55 %C Annealed 109 220 4
Quenched and tempered 145 300 5
Annealed 87 200 6
P Low alloy steel and cast steel 35 275 7
(less than 5% of alloying elements) Quenched and tempered 145 300 8
174 350 9
High alloyed steel, cast steel, Annealed 99 200 10
and tool steel Quenched and tempered 160 325 11
Stainless steel and Ferritic/martensitic 99 200 12
cast steel Martensitic 119 240 13
M Stainless steel Austenitic 87 180 14
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
Aluminum- Not cureable 60 21
wrought alloy Cured 100 22
<=12% Si Not cureable 75 23
Aluminum-cast, Cured 90 24
alloyed
N >12% Si High temperature 130 25
>1% Pb Free cutting 110 26
Copper alloys Brass 90 27
Electrolitic copper 100 28
Duroplastics, fiber plastics 29
Non-metallic
Hard rubber 30
Fe based Annealed 200 31
Cured 280 32
High temp. alloys Annealed 250 33
S Ni or Co based Cured 350 34
Cast 320 35
58 36
Titanium Ti alloys
Alpha+beta alloys cured 152 37
Hardened 55 HRC 38
Hardened steel
H Hardened 60 HRC 39
Chilled cast iron Cast 400 40
Cast iron Hardened 55 HRC 41
• When using external coolant supply only, reduce cutting speed by 10%
• Use internal coolant supply when machining austenitic stainless steel

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