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USER GUIDE
MILLING INSERTS Cutting Speed Recommendations for Indexable Milling Cutters 2 Hardness Material

Tensile
Strength
HB
No.
Condition
ISO
[N/mm ]
Material
< 0.25 %C
125
420
1
Annealed
>= 0.25 %C
Annealed
190
650
2
Non-alloy steel and cast steel,
Quenched and tempered
850
< 0.55 %C
free cutting steel
Annealed
>= 0.55 %C
220
750
Quenched and tempered
300
200
Annealed 1000 250 3 4 5 6
600
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 Cast iron nodular (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,
alloyed Cured 90 24
N >12% Si High temperature 130 25
26
110
Free cutting
>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
Cast
400
40
Cast iron Hardened 55 HRC 41

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