Coatings

Abbreviation	TiN	TiCN	TIAIN	CrN	NIT	VAP
Designation	Titanium nitride	Titanium carbon nitride	Titanium alumnium- nitride	Chromium nitride	Nitriding	Vaporize
Color	Gold color	Purple	Black	Chrome color	Black	Black
Hardness HV	2000-2300	3000	3300	2000-2200	1100-1200	1100-1200
Layer thickness µ / mm	2-3 µ	2-3 µ	2-3 µ	2-3 µ	0.02-0.03 mm	1-2 µ
max. operating temperature °C	600-700	400-500	800-900	700-750	600-700	600-700
Coefficient of friction against steel	approx. 0.67	approx. 0.38	approx. 0.37	approx. 0.57	approx. 0.67	approx. 0.67

Titanium Nitride (TiN)

The titanium nitride coating is a universal wear protection coating with a layer thickness of approx. 3 µm. It is ideally suited for taps, as it reduces the coefficient of friction and the tendency to cold welds. Due to its high wear resistance, the coating allows higher cutting speeds and thus reduces unit costs.

Titanium aluminum nitride (TiAlN)

The TiAlN coating enables use even at high temperatures on the workpiece due to the incorporation of aluminum and combines this with the high wear resistance of the TiCN coating. It enables high cutting data and is the most suitable of all hard coatings for dry machining

Nitriding (NIT)

During nitriding, the surface of the tool is enriched with nitrogen (diffused). A compound layer is formed which is resistant up to about 500°, has so-called pore seams on the surface and has proven itself as a carrier of lubricants. Nitriding is a relatively inexpensive wear protection method which is particularly suitable for machining metallic cast materials.

Titanium Carbonitride (TiCN)

The TiCN coating is harder than the TiN coating. This means excellent wear resistance, but also lower temperature resistance than TiN. The TiCN coating is particularly suitable for high-alloy steels and aluminum casting alloys with a high silicon content.

Chromium nitride (CrN)

The CrN coating has excellent chemical resistance. It is particularly dense and protects the tool from corrosive attacks in particular. Due to the coating composition and the good temperature resistance, the coating is particularly suitable for cutting copper, brass and bronze alloys.

Vaporize (VAP)

Vaporizing is the enrichment of the surface layers on the tool with oxygen by a thermochemical process. The resulting iron oxide layer increases resistance to adhesion and corrosion resistance. This reduces the tendency to cold welds during steel machining. Recommended for machining low-alloy structural steels and stainless materials