Page 644 - Iscar

USER GUIDE
DEEP HOLE DRILLING

Recommended Machining Conditions

Tensile
Strength Hardness Material
ISO Material Condition [N/mm ] HB No. (1)
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
18
250
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
Free cutting
110
26
>1% Pb
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
400
Cast
Cast iron Hardened 55 HRC 41

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