Page 588 - Iscar

USER GUIDE
SOLID CARBIDE DRILLS

Machining Data for Solid Carbide Drills D=0.8-2.9 mm
Tensile
Strength Hardness Material
ISO Material Condition [N/mm ] HB No.
2
< 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
Annealed 600 200 6
P 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
Stainless steel and Ferritic/martensitic 680 200 12
cast steel Martensitic 820 240 13
M Stainless steel Austenitic 600 180 14

Ferritic/pearlitic 180 15
Grey cast iron (GG)
Pearlitic 260 16
Ferritic
K Nodular cast iron (GGG) Pearlitic 160 17
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
26
110
Free cutting
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
RM 400 36
Titanium Ti alloys
Alpha+beta alloys cured RM 1050 37
Hardened 55 HRC 38
Hardened steel
H Chilled cast iron Hardened 60 HRC 39
40
Cast
400
Cast iron Hardened 55 HRC 41
• For drill with lengh to diameter ratio larger than 6xD, reduce feed by 20%
• If the RPM exceeds 10,000, a dynamic balance should be done to the system
• Maximal radial and axial runout should not exceed 0.01 mm
(1) For workpiece materials list, see pages 1008-1043

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