
A new versatile solution for your challenges in stainless steel machining
PVD grade for stainless steel turning

Applications & Features
Applications
Features
1. 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.
2. Application range
Grades
Practical examples
Example #1
General Industry
Part: | Joint part |
Material: | SUS304 / X5CrNi18-9 |
Insert: | CNMG120404-SM |
Grade: | AH6225 |
Cutting conditions: | Vc = 80(m/min) f = 0.1 (mm/rev) ap = 1.0 (mm) Application: External turning Coolant: Wet |

Example #2
General Industry
Part: | Machine part |
Material: | SUS440 (Martensite stainless steel) |
Insert: | VNMG160404-SF |
Grade: | AH6225 |
Cutting conditions: | Vc = 100 (m/min) f = 0.1 (mm/rev) ap = 0.5 (mm) Application: External turning Coolant: Wet |

Standard cutting conditions
Negative inserts
Workpiece material | Grade | Chipbreaker | Cutting speed | Depth of cut | Feed |
---|---|---|---|---|---|
Vc (m/min) | ap (mm) | f (mm/rev) | |||
Austenitic Austenitic stainless steel |
AH6225 | SF | 90 – 200 | 0.5 – 2.5 | 0.08 – 0.45 |
AH6225 | SM | 90 – 200 | 1 – 4 | 0.2 – 0.5 | |
AH6225 | SH | 90 – 200 | 2 – 6 | 0.3 – 0.6 | |
Ferritic / martensite stainless steel | AH6225 | SF | 110 – 240 | 0.5 – 2.5 | 0.08 – 0.45 |
AH6225 | SM | 110 – 240 | 1 – 4 | 0.2 – 0.5 | |
AH6225 | SH | 110 – 240 | 2 – 6 | 0.3 – 0.6 | |
Precipitation hardened stainless steel | AH6225 | SF | 60 – 110 | 0.5 – 2.5 | 0.08 – 0.45 |
AH6225 | SM | 60 – 110 | 1 – 4 | 0.2 – 0.5 | |
AH6225 | SH | 60 – 110 | 2 – 6 | 0.3 – 0.6 |
Positive inserts
Workpiece material | Grade | Chipbreaker | Cutting speed | Depth of cut | Feed |
---|---|---|---|---|---|
Vc (m/min) | ap (mm) | f (mm/rev) | |||
Austenitic Austenitic stainless steel |
AH6225 | PSS | 90 – 200 | 0.3 – 2 | 0.08 – 0.3 |
AH6225 | PS | 90 – 200 | 0.5 – 2.5 | 0.08 – 0.3 | |
AH6225 | PM | 90 – 200 | 1 – 3 | 0.15 – 0.3 | |
Ferritic / martensite stainless steel | AH6225 | PSS | 110 – 240 | 0.3 – 2 | 0.08 – 0.3 |
AH6225 | PS | 110 – 240 | 0.5 – 2.5 | 0.08 – 0.3 | |
AH6225 | PM | 110 – 240 | 1 – 3 | 0.15 – 0.3 | |
Precipitation hardened stainless steel | AH6225 | PSS | 60 – 110 | 0.3 – 2 | 0.08 – 0.3 |
AH6225 | PS | 60 – 110 | 0.5 – 2.5 | 0.08 – 0.3 | |
AH6225 | PM | 60 – 110 | 1 – 3 | 0.15 – 0.3 |
For more information about this product, visit our online e-catalog or download the product report: