Nitriding processes are heat treatment techniques used to harden the surface of metals, particularly steel. This method involves introducing nitrogen into the surface layer of the metal, enhancing its hardness, wear resistance, and fatigue strength. Nitriding can be performed in various environments, including gas, salt bath, or plasma, each offering different benefits and applications. The most common nitriding process is gas nitriding, where nitrogen-rich gases are used to diffuse nitrogen into the metal surface at elevated temperatures. This process typically occurs between 500°C and 600°C, allowing for a controlled and uniform treatment. The result is a durable surface layer that improves the performance and longevity of components in various industries.