Nitrocarburizing & Nitriding

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:

Steel Surface Hardness Hv Case Depth mm
EN3A, 070M20, 080M40, Mild Steels 350 – 500 0.100 – 1.00
EN19, 708M40, 4140, 4340, P20 550 – 850 0.025 – 1.00
EN40, 722M24, 31CrMoV9 750 – 1000 0.025 – 0.70
EN41, 905M39, Nitralloy 750 – 1100 0.025 – 0.70
H13, H11, D2, Hot Work Tool Steel 800 – 1200 0.025 – 0.50

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
Process

Process

Metal powders are consolidated into a shape under pressure. The powder metallurgy process has three basic stages: mixing, pressing & sintering.

Find out more
Process

Application

Metal powders are consolidated into a shape under pressure. The powder metallurgy process has three basic stages: mixing, pressing & sintering.

Find out more
Process

Quality

GTB Components Ltd is committed to meeting and exceeding its customers expectations for the products and services it provides.

Find out more
+44 (0)1744 611991