Scorpion Stinger — Aluminum Titanium Nitride (AlTiN)
Built for heat — high-temperature AlTiN for high-speed and dry machining where the cutting edge runs hot.
A deep, iridescent violet-black finish.
Color is a key choice — especially for decorative work. Browse coatings by color →
What is Scorpion Stinger?
Scorpion Stinger is our aluminum titanium nitride (AlTiN) coating. As the tool heats up, the aluminum converts to a stable aluminum-oxide layer that shields the cutting edge — giving an oxidation onset temperature near 900 °C, among the highest commercially available, and roughly double the max operating temperature of TiN. It performs hardest exactly when the edge is hottest.
Best for: High-temperature, high-speed, and dry machining of hard materials.
Key properties
- Oxidation onset ~900 °C — among the highest available
- Self-forming aluminum-oxide protective layer
- Roughly 2× the operating temperature of TiN
- Note: not biocompatible
Specifications
Scorpion Stinger vs. the Crystallume PVD line.
How this coating compares across the line on the two specs engineers ask about most.
Microhardness (HV)
Max service temperature (°C)
Values are typical published properties for the underlying coating chemistry, shown for general guidance. Coefficient of friction is a system property that varies with the mating material, load, and environment. Final specifications are confirmed per part and application.
Where Scorpion Stinger performs.
From the cutting edge to everything beyond it.
⚙ Cutting tools
✦ Beyond cutting tools
Scorpion Stinger in the real world.
A closer look at parts finished in Scorpion Stinger's violet-black coating.
Is Scorpion Stinger right for your part?
Tell us your material and application — we'll confirm whether Scorpion Stinger is the best fit, or recommend another coating from the line.