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T6200 & AH6200 series

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Latest grade series for stainless steel turning with exceptional reliability

Latest grade series that provide solutions for all your machining challenges in stainless steel

Applications & Features

Applications

Internal turningExternal turning

Features

1. Application range

2. Grade feature

Versatile PVD-coated grade

Ti-enriched coating

– Thick Ti-enriched PVD coating for enhanced thermal shock resistance
– Reduced crater wear

High Ti-content nano-structured multilayer coating

The outer layer consists of a high Ti-content nano-structured multilayer made possible by Tungaloy’s latest coating technology. Its high hardness and nano structure provides the grade with a good balance of wear and fracture resistance, enhancing tool life and predictability.

Dedicated carbide substrate

Thanks to high thermal conductivity of the substrate, heat generated during machining is dissipated, efficiently reducing temperature on the cutting edge. This provides edge toughness, while reducing plastic deformation of the cutting edge. Ideal for continuous cuts.

AH6235 incorporates a tough substrate that provides process security during interrupted machining. This tough substrate provides the grade with added reliability during interrupted cuts.

Superior wear resistance

Enhanced hardness of outer layer

– Hard outer layer coating significantly reduces flank wear.

Strong adhesion of Al2O3 layers

– Tungaloy’s latest Al2O3 coating technology enhances the grade’s adhesion of coating, preventing edge chipping and coating delamination.

Thick coating

– 30% thicker than conventional grades.
– Provides superior wear resistance and long tool life.

Grades

T6215

  • P10 – P30 / M10 – M30

  • Demonstrates excellent wear resistance for high speed continuous stainless steel cuts

AH6225

  • P20 – P30 / M20 – M30
  • First choice for stainless steel
  • Excellent versatility for stainless steel machining, demonstrates a good combination of wear and fracture resistance

AH6235

  • P30 – P40 / M30 – M40
  • Demonstrates superior fracture resistance in stainless steel
  • Provides high reliability for interrupted cuts and heavy-duty machining

Practical examples

Example #1
Part: Pipe part
Material: SUS304 / X5CrNi18-9
Insert: DNMG150408-SM
Grade: T6215
Cutting conditions: Vc = 150(m/min)
f = 0.3 (mm/rev)
ap = 3 (mm)
Application: External turning
Coolant: Wet
Example #2
Part: Machine part
Material: SUS304 / X5CrNi18-9
Insert: TNMG160408-SM
Grade: T6215
Cutting conditions: Vc = 200(m/min)
f = 0.3 (mm/rev)
ap = 2.5 (mm)
Application: External face turning
Coolant: Wet
Example #3
Part: Generator part
Material: SUS410 / X12Cr13
Insert: CNMG120408-SH
Grade: AH6235
Cutting conditions: Vc = 70 (m/min)
f = 0.15 (mm/rev)
ap = 2 – 4 (mm)
Application: Face turning (interrupted cutting)
Coolant: Wet
Example #4
Part: Machine part
Material: SUS304 / X5CrNi18-9
Insert: CNMG120412-SM
Grade: AH6235
Cutting conditions: Vc = 80 (m/min)
f = 0.2 (mm/rev)
ap = 1.5 (mm)
Application: Face turning (interrupted cutting)
Coolant: Wet
Example #5
Part: Joint part
Material: SUS304 / X5CrNi18-9
Insert: CNMG120404-SM
Grade: AH6225
Cutting conditions: Vc = 90(m/min)
f = 0.2 (mm/rev)
ap = 1 (mm)
Application: External turning
Coolant: Wet
Example #6
Part: Machine part
Material: SUS440 (Martensite stainless steel)
Insert: VNMG160404-SF
Grade: AH6225
Cutting conditions: Vc = 110 (m/min)
f = 0.1 (mm/rev)
ap = 0.5 (mm)
Application: External turning
Coolant: Wet

Standard cutting conditions

Negative inserts
ISO Operation Chipbreaker Grade Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Cutting speed: Vc (m/min)
Austenitic
stainless steel		 Ferritic /
martensite
stainless steel		 Precipitation
hardened
stainless steel
Finishing SF T6215 0.5 – 2.5 0.08 – 0.45 140 – 240 160 – 280 80 – 150
AH6225 0.5 – 2.5 0.08 – 0.45 90 – 200 110 – 240 60 – 110
AH6235 0.5 – 2.5 0.08 – 0.45 50 – 150 70 – 170 –
Medium cutting SM T6215 1 – 4 0.2 – 0.5 140 – 240 160 – 280 80 – 150
AH6225 1 – 4 0.2 – 0.5 90 – 200 110 – 240 60 – 110
AH6235 1 – 4 0.2 – 0.5 50 – 150 70 – 170 –
SDM T6215 1 – 4 0.2 – 0.5 140 – 240 160 – 280 80 – 150
AH6225 1 – 4 0.2 – 0.5 90 – 200 110 – 240 60 – 110
AH6235 1 – 4 0.2 – 0.5 50 – 150 70 – 170 –
Heavy cutting SH T6215 2 – 6 0.3 – 0.6 140 – 240 160 – 280 80 – 150
AH6225 2 – 6 0.3 – 0.6 90 – 200 110 – 240 60 – 110
AH6235 2 – 6 0.3 – 0.6 50 – 150 70 – 170 –
Positive inserts
ISO Operation Chipbreaker Grade Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Cutting speed: Vc (m/min)
Austenitic
stainless steel		 Ferritic / martensite stainless steel Precipitation hardened stainless steel
Finishing PSS T6215 0.3 – 2 0.08 – 0.3 140 – 240 160 – 280 80 – 150
AH6225 0.3 – 2 0.08 – 0.3 90 – 200 110 – 240 60 – 110
AH6235 0.3 – 2 0.08 – 0.3 50 – 150 70 – 170 –
Finishing to
medium cutting		 PS T6215 0.5 – 2.5 0.08 – 0.3 140 – 240 160 – 280 80 – 150
AH6225 0.5 – 2.5 0.08 – 0.3 90 – 200 110 – 240 60 – 110
AH6235 0.5 – 2.5 0.08 – 0.3 50 – 150 70 – 170 –
Medium cutting PM T6215 1 – 3 0.15 – 0.3 140 – 240 160 – 280 80 – 150
AH6225 1 – 3 0.15 – 0.3 90 – 200 110 – 240 60 – 110
AH6235 1 – 3 0.15 – 0.3 50 – 150 70 – 170 –
JS chipbreaker
ISO Workpiece materials Chipbreaker Grade Cutting speed
Vc (m/min)		 Depth of cut
ap (mm)		 Feedf (mm/rev)
RE < 0.05 RE < 0.1 RE < 0.2 RE < 0.4
Austenitic stainless steel JS AH6225 90 – 200 0.5 – 3 0.02 – 0.03 0.02 – 0.05 0.02 – 0.1 0.05 – 0.2
Ferritic / martensite stainless steel JS AH6225 110 – 240 0.5 – 3 0.02 – 0.03 0.02 – 0.05 0.02 – 0.1 0.05 – 0.2
Precipitation hardened stainless steel JS AH6225 60 – 110 0.5 – 3 0.02 – 0.03 0.02 – 0.05 0.02 – 0.1 0.05 – 0.2

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