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BALINIT VALDURA

BALINIT VALDURA Al‑doped CrN coating for oxidation-resistant exhaust valve applications

Exhaust Valves

With BALINIT® VALDURA, Oerlikon Balzers offers the ideal coating solution for motorsports exhaust valve applications. Temperatures of up to 900°C cause severe oxidation of uncoated components.

The Al-doped CrN coating enables oxidation resistance at elevated temperatures which significantly increases the overall wear resistance.

The globally available Oerlikon Balzers surface solutions and coating services are designed to bring performance to new levels. Tests show that the new BALINIT® VALDURA exceeds CrN coatings in exhaust valve applications significantly.

BALINIT VALDURA
Coating material Al-doped CrO
Coating technology Arc
Coating colour bright grey
Coating hardness HIT [GPa]* 21
Max. service temp. [°C]**** 900
Process temperature [°C] 500
Typical coating thickness [µm] 2 - 7
General remark All given data are approximate values, they depend on application, environment and test condition.
*Coating hardness HIT [GPa] Measured by nano indentation according to ISO 14577. For multilayers the hardness of the different layers varies. Hardness can be adapted to the application.
****Max. service temp. [°C] These are approximate values out of the field. Due to thermodynamic laws there is a dependency of pressure in application.
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