ONC® is successfully applied to enhance corrosion and wear resistance of various grades of steel. It is a modern combination of the proven NITREG® potential-controlled nitriding process or the Nitreg®-C potential-controlled nitrocarburizing process with an integrated post-nitriding oxidation.
PUTTING ONC® TO THE TEST
Depending on the type of steel, parts treated in the ONC® process can easily pass well over 200 hours of salt-spray test per ASTM B117 before the first corrosion spot appears. A comparison of corrosion test results obtained on three different applications, manufactured from different materials treated by the ONC® process, is shown below.