Turning
Grade Application Guide
Turning grade application
Materials
PVD coated
CVD coated Uncoated
Material classification
Tensile strength ( N/mm 2 )
Hardness (HB)
ISO
AP301U
AP330M AC230P AW100K
● ● ● ● ● ● ● ● ◐ ◐ ◐
● ● ● ● ● ● ● ●
● ● ● ● ●
<600
<180
-
Unalloyed steel
<950
<280
-
700-950
200-280
-
P
Alloyed steel
950-1200
280-355
-
1200-1400
355-415
-
Duplex stainless steel
778
230
-
-
Austenitic stainless steel
675
200
-
-
M
Precipitation-hardening stainless steel
1013
300
-
-
● ● ●
Grey cast iron
700
220
-
-
K
Nodular cast iron
880
260
-
-
Malleable cast iron
800
250
-
-
● ●
Aluminum
260
75
-
-
-
N
Aluminum alloy
447
130
-
-
-
Fe-based alloy
943
280
-
-
-
-
Co-based alloy
1076
320
-
-
-
-
S
Ni-based alloy
1177
350
-
-
-
-
Ti-alloy
1262
370
-
-
-
-
Hardened steel
-
50-60HRC
-
-
-
-
H
Chilled cast iron
-
55HRC
-
-
-
-
● 1st choice ◐ 2nd choice -
Inapplicable
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