CCMT 09T308 AH6235 Wendeplatten - Tungaloy

Take advantage of the combination of durable PVD-coated cemented carbide, precise geometry and secure mounting for consistent turning performance; this insert is tailored for demanding stainless steel and interrupted cutting. Order the CCMT insert via Metav Werkzeuge or consult our technical advisers for application-specific selection.

CCMT 09T308 AH6235 — Tungaloy indexable turning insert for stainless steel

CCMT 09T308 AH6235 is an ISO-standard indexable turning insert designed for external and internal turning applications where toollife and edge stability are critical

• PVD-coated cemented carbide AH6235
• Optimised for stainless steel turning
• Rhombic CCMT 09 shape, 0.8 mm corner radius
• With cylindrical hole and 40°–60° countersink

High-performance grade for challenging stainless steel work

The PVD-coated AH6235 grade is a tougher cemented carbide designed specifically to cope with the demands of machining stainless steel and other materials prone to work hardening. Its coating and substrate combination increase resistance to edge chipping in interrupted cuts and improve thermal stability at elevated cutting temperatures. As a result, cycle times are more predictable and insert life is extended, which supports efficient production planning and lower tooling costs per part.

Geometry and clamping that ensure reliable chip control

The rhombic CCMT shape and integrated one-sided chipbreaker deliver consistent chip formation and evacuation when matched with the correct holder and cutting parameters. The insert is supplied with cylindrical hole and a single-sided countersink (40°–60°) to secure a positive, repeatable clamping interface; compatibility with a given holder depends on form, relief angle, tolerance class, fastening method, size and thickness. In workshop practice, the insert forms part of a system — insert, appropriate external holder or boring bar, shim/clamp and replacement screws — that together determine cutting stability and surface finish.

Clear dimensional advantages for flexible process design

A 0.8 mm corner radius balances edge strength and achievable surface finish, making the insert suitable for medium-feed finishing and light roughing in unstable setups. The geometry includes a 7° relief angle, an 80° included angle and a 3.97 mm thickness, which together provide mechanical robustness and deflection resistance when cutting under moderate radial depths. Selecting the correct chipbreaker and matching the AH6235 grade to the workpiece material and machining strategy reduces the risk of built-up edge and unplanned tool changes, improving overall process reliability.

For durable, process-safe turning in stainless steel applications we recommend the Tungaloy AH6235 grade — contact Metav Werkzeuge for individual application advice at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss holder compatibility and cutting data.

Technical data

• Article number: 6890155
• Manufacturer SKU: TUN6890155
• Brand: Tungaloy

Core specifications

• Insert designation: CCMT09T308
• Insert size: 09
• Corner radius: 0.8 mm
• Included angle: 80°
• Relief angle: 7°
• Plate thickness: 3.97 mm
• Hole style: cylindrical hole with single-sided countersink (40°–60°)

Materials & features

• Material: cemented carbide, PVD coating AH6235
• Shape: rhombic (CCMT)
• Chipbreaker: one-sided
• Application: turning; suitable for stainless steel and interrupted cuts
• Mounting: with hole, compatible with ISO holders

FAQ

What materials is this insert best suited for?
The CCMT09T308 AH6235 Tungaloy indexable insert (SKU 6890155-Tungaloy) is optimised for stainless steel and applications with interrupted cuts where enhanced edge toughness is required.

Can the insert be used for both external and internal turning?
Yes, the insert geometry and ISO designation allow use in both external and internal turning operations when paired with a suitably rated external holder or boring bar.

How does the 0.8 mm corner radius affect performance?
A 0.8 mm corner radius increases edge strength and helps prevent chipping, offering a compromise between surface finish and tool robustness for medium-feed operations.

Is the insert compatible with standard ISO CCMT holders?
The CCMT09T308 is an ISO-standard insert; compatibility with a holder depends on form, relief angle, tolerance class, fastening and plate thickness — ensure the holder matches these parameters for secure clamping.

What advantages does the AH6235 PVD coating provide?
The AH6235 coating enhances wear resistance and thermal stability, reducing the likelihood of breakout and improving toollife in demanding stainless steel machining scenarios.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.