Chipbreaker and Grade Selection Guide for Turning Stainless Steel
Stainless Steel
Grades
750
High-speed/High-efficiency Cutting
AC6020M
550
Wide Cutting Range AC6030M
350
Heavy Interrupted Cutting AC6040M
For Small Lathes
A
AC1030U
150
Finishing
Roughing
Partially Interrupted
Interrupted
Continuous
Chipbreakers
Negative Type
Positive Type
EEM Type
EEG Type
EMU Type
.240
.160
EEM Type (EMU Type )
EMU Type
EEX Type
ESU Type
.120
EMU Type
.160
EGU Type
EGU Type
.080
ESU Type EGU Type
EEG Type EEX Type EGU Type
EEF Type
ELU Type
ELB Type
.080
ELU Type
.040
EEF Type (ESU Type )
ESU Type
ELB Type
0
.008
.016
.024
0
.008
.016
Feed Rate f (IPR)
Feed Rate f (IPR)
Refer to the Tools for Small Lathes chapter
D7 for the Chipbreaker Selection Guide for ground (G Class) inserts.
Recommended Cutting Conditions
(Red text indicates 1st recommendation)
Cutting Conditions
Cutting Process
Min. - Max.
Workpiece Material
Chipbreaker
Grade
Depth of Cut a
Cutting Speed v
f (IPR)
Feed Rate
p (inch)
c (SFM)
AC6020M
EEF(ESU)
.020 - .080 .002 - .010 .040 - .160 .004 - .015 .060 - .240 .008 - .025 .020 - .080 .002 - .010 .040 - .160 .004 - .015 .060 - .240 .008 - .025 .020 - .080 .002 - .010 .040 - .160 .004 - .015 .060 - .240 .008 - .025 .020 - .080 .002 - .010 .040 - .160 .004 - .015 .060 - .240 .008 - .025 .020 - .080 .002 - .010 .040 - .160 .004 - .015 .060 - .240 .008 - .025
550 - 1000 450 - 900 450 - 450 400 - 900 300 - 750 250 - 650 400 - 900 300 - 750 250 - 650 300 - 650 250 - 600 225 - 525 300 - 525 225 - 500 150 - 400
Finishing
SUS405, SUS410L, SUS430, SUS430F, SUS434, SUS447FJ1 SUS403, SUS410, SUS420J2,SUS420F, SUS440F SSU304, SUS304L, SUS316, SUS316L, SUS303, SUS321
Ferritic
Medium EEG / EGU /EEX AC6030M
AC6040M AC6020M
EEM
Rough
EEF(ESU)
Finishing
Medium EEG / EGU /EEX AC6030M
Martensitic
AC6040M AC6020M
EEM
Rough
EEF(ESU)
Finishing
Medium EEG / EGU /EEX AC6030M
Austenitic
AC6040M AC6020M
EEM
Rough
EEF(ESU)
Finishing
Duplex (Austenitic/ Ferritic) Deposition Hardened Structures
SUS329J1, SUS329J3L, SSU329J4L SUS630, SUS631, SUS632J1
Medium EEG / EGU /EEX AC6030M
AC6040M AC6020M
EEM
Rough
EEF(ESU)
Finishing
Medium EEG / EGU /EEX AC6030M
AC6040M
EEM
Rough
A14
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