tr Titanium Carbonitride: The New Standard in Hardness and Durability
Titanium carbonitride (TiCN) is a coating that delivers high hardness and outstanding wear resistance. It is formed by combining titanium and carbon with nitrogen, and is typically applied to the surfaces of tools and parts used in the metalworking industry.
Properties and Applications of Titanium Carbonitride Coating
The defining characteristics of titanium carbonitride coating are its exceptionally high hardness and wear resistance, which significantly extend the service life of tools. Its strong heat resistance also makes TiCN a preferred choice for high-speed metal cutting and other demanding industrial applications.
Advantages of TiCN Over Other Coatings
TiCN holds several advantages over coatings such as titanium nitride (TiN) and chromium nitride (CrN). First, because it is harder than these alternatives, it extends the wear life of tools even further. TiCN also offers greater oxidation resistance, allowing it to perform better in high-speed machining applications.
Environmental Impact of TiCN Coating
TiCN coating is recognized as an environmentally friendly technology, since no harmful toxic substances are produced during its manufacture. And because the coating extends the useful life of tools and parts, they need replacing less often, which in turn means less waste.
Technical Specifications
| Hardness | ~2800-3200 HV approx. |
|---|---|
| Coating Thickness | approx. 1-4 µm |
| Friction Coefficient | ~0.3-0.4 approx. |
| Max. Working Temperature | approx. 400°C |
| Colour | grey-blue to bronze shades |
* Values are approximate and may vary depending on the application and process parameters.
Where Is It Used?
Coating Types
Frequently Asked Questions
Yes. The carbon added to the coating structure raises TiCN hardness to typically around 3000 HV, noticeably above TiN, and it also offers a lower coefficient of friction. The trade-off is reduced thermal stability, with a working limit of roughly 400°C.
TiCN ranges from gray-blue to bronze and anthracite tones depending on the carbon content used in the process. This color flexibility makes it suitable for both industrial tooling and decorative hardware. The final shade is controlled through the gas mixture during deposition.
TiCN excels under high mechanical loads and abrasive wear, making it a strong choice for machining stainless and alloy steels, and for taps, reamers, and form tools. It is also widely used on cold-forming dies, punches, and cutting blades. Its toughness gives it an edge in interrupted cutting operations.
Choose TiCN when the workpiece material is abrasive, cutting forces are high, and tool life is the priority. For high-speed or dry machining that generates elevated temperatures, TiAlN or AlTiN is the better fit. TiCN performs best in medium-speed operations with adequate coolant.
