Somta - page 50

40
†
Speed
m/min
*Type
of
Feed
TYPE GRADE
CARBON
STEEL
&
ALLOY
STEEL
FREE CUTTING
0.3 to 0.4% Carbon
0.3 to 0.4% Carbon
0.4 to 0.7% Carbon
0.4 to 0.7% Carbon
HARD
NESS
BRINELL
TONS
PER
SQ IN.
(MAX)
N/mm²
(MAX)
150
170
248
206
286
35
40
59
47
67
525
600
900
700
1000
248
330
380
59
75
87
900
1125
1300
STAINLESS
STEEL
Martensitic
Free Cutting
Martensitic
Std. Grade
Austenitic
Free Cutting
Austenitic Std. Grade
12-15
7-10
5-8
M-H
M
L
7-10
5-8
2-4
5-8
2-5
M
L-M
5-8
2-5
L-M
L-M
AsSupplied
380 54 810
TITANIUM
TitaniumComm:Pure
Titanium Comm: Pure
Titanium Comm: Pure
Titanium Alloyed
Titanium Alloyed
NIMONIC
ALLOYS
Wrought
Cast
300
350
67
78
1000
1200
2-5 L
170
200
275
340
380
40
43
65
76
85
600
650
975
1140
1275
7-10 M
2-4 L-M
TOOL
STEEL
HSSStandard
Grades
HSS Cobalt Grades
Hot Working Steel
Cold Working Steel
225
225
48
54
720
800
7-10 M
REAMER TECHNICAL DATA
†SeeSpeedConversionChartonpage16/17. contonpage41
*See tableonpage39.
M
M
L
TYPICAL PHYSICAL
PROPERTIES