Nominal cutting speed for grooving

P Material
HB
 Condition External
Cutting speed m/min.		 Internal/axial
Cutting speed m/min.		 Specific
cutting force
 
  TIN30 PM25 KM15 TIN30 PM25 KM15

Kc0,4
Unalloyed steel 125
150
200		 C=0,15%
C=0,35%
C=0,60%

200-150
190-140
170-120

 160-120
150-110		  

140-105
135-100
120-85

 110-85
105-80
90-60		   1900
2100
2250
Low alloyed steel 180
275
300
350

Annealed
Hardened
Hardened
Hardened

 180-130
160-110
150-100
140-90		 140-100
120-80
110-70
90-60
125-90
110-80
105-70
100-60		 100-70
85-55
80-50
60-45
2100
2600
2700
2850
High alloyed steel 200
325		 Annealed
Hardened		 110-90
70-50		 70-60
45-30
   80-60
80-35		 50-45
32-20		   2600
3900
Stainless steel 200 Martensitic/Ferritic 170-120 130-90   120-85 90-60   2300
Steel castings 180
200
225		 Unalloyed
Low alloyed
High alloyed		 130-90
115-75
100-60		 100-60
90-50
80-40		   90-60
80-50
70-45		 70-45
60-35
55-30		   2000
2500
2700

M Material HB Condition External
Cutting speed m/min.		 Internal/axial
Cutting speed m/min.		 Specific
cutting force
     

TIN30

 PM25 KM15

TIN30

 PM25 KM15

Kc0,4
Stainless steel annealed 180 Austenitic Ni>8% Cr 12-25%
 170-120 130-90 100-60 120-85 90-60 70-45 2450
Heat resistant alloys 200
280
250
350
320

Annealed (iron base)
Aged (iron base)
Annealed (Ni or Co base)
Aged (Ni or Co base)
Cast (Ni or Co base)

     50-30
40-20
30-20
20-10
20-10		     50-30
40-20
30-20
20-10
20-10		 3000
3050
3500
4150
4150
Titanium alloys 400
950
1050		 Ti
Cast a, almost a and a+ß
Aged cast a+ß 		            1530
1675
1690

K Material HB Condition External
Cutting speed m/min.		 Internal/axial
Cutting speed m/min.		 Specific
cutting force
     

TIN30

 PM25 KM15

TIN30

 PM25 KM15

Kc0,4
Hardened steel 220
250		 Hardened steel
Manganese steel 12%		             4500
3600
Malleable cast iron 130
230

Ferritic
Pearlitic

140-110
100-70		   100-80
70-50		 100-80
70-50		   100-80
70-50		 1100
1100
Cast iron 180
260		 Low tensile strength
High tensile strength		 110-85
100-70		   80-60
70-50		 80-60
70-50		   80-60
70-50		 1100
1500
Nodular SG iron 160
250		 Ferritic
Pearlitic 		100-70
85-60		   70-50
60-40		 70-50
60-45		   70-50
60-40		 1100
1800
Chilled cast iron 400               3000
Aluminium alloys 60
100		 Non heat treatable
Heat treatable		 1500
500		     1050
350		 1050
350		 700
300		 500
800
Aluminium alloys (cast) 75
90		 Non heat treatable
Heat treatable		 1500
750		 1500
750		 1000
650		 1050
525		 1050
525		 700
460		 750
900
Bronze-Brass alloys 110
90

100		 Lead alloys, Pb>1%
Brass, red brass
Bronze and lead-free copper, Inc.electrolytic copper		 300
200

150		 300
200

150		 300
200

150
 210
140
105		 210
140
105		 210
140
105		 700
750
1750
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