+44 (0)1744 611991


Gas Nitride treatment is a “low temperature” furnace treatment with an atmosphere of Ammonia. The Nitriding process is an established and  successful means of generating a hard case on a component.

This process is most useful for components such as Crankshafts, Gears and a multitude of other parts in tough environments (especially oil & gas, energy, aerospace, etc).

The following table are presented typical hardness and case depth for common nitrided steels:

The crucial benefits of the process are:

  • Wear resistance: created by a diffused hard surface layer.
  • Negligible dimensional changes.
  • Improved fatigue properties: the process induces compressive stress, which improves fatigue strength.
  • Improved corrosion.
  • No reduction in the core hardness of the base metal.

Size Range:

  • Max height: 1000 mm
  • Diameter: 610mm
  • Max Load: 1000 kg