Page 676 - Iscar

USER GUIDE
GUNDRILLS ISO Material Condition Strength Hardness Material

Tensile
2
[N/mm ]
No.
HB
< 0.25 %C
Annealed
190
650
Annealed
Non-alloy steel and cast steel, >= 0.25 %C Quenched and tempered 420 125 1 2 3
< 0.55 %C
250
850
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
K Nodular cast iron (GGG) Pearlitic 160 17
Ferritic
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
26
>1% Pb
Free cutting
110
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
Cast
400
40
Cast iron Hardened 55 HRC 41
(1) For workpiece materials list, see pages 1008-1043

672 ISCAR