Nitrocarburizing, nitriding process. Metlab and Metlab Potero of Wyndmoor PA.

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	Nitrocarburizing

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Nitrocarburizing · Benefits · Applications · Facilities

Nitrocarburizing

Nitrocarburizing is a variation of the nitriding process. It is a thermochemical diffusion process where nitrogen, carbon, and to a very small degree, oxygen atoms diffuse into the surface of the steel part, forming a compound layer at the surface, and a diffusion layer. Nitrocarburizing is a shallow case variation of the nitriding process. Advantages of the process include the ability to harden materials which are not prehardened, the relatively low temperature of the process which minimizes distortion, and relative low cost in comparison to carburizing or other case hardening processes. This process is done mainly to provide an anti-wear resistance on surface layer and to improve fatigue resistance.

An additional advantage is that nitrocarburizing can be applied to the same materials as is nitriding, as well as unalloyed materials, where good wear resistance and some improved fatigue resistance are needed at a low cost. It is widely used for stampings, as an alternative to hard plating or even carbonitriding.

Benefits

Improved wear properties
Corrosion resistance
Improved fatigue strength

Applications

Gears and pinion shafts
Plastic injection molding screws and barrels, up to 22' long
Piston rings
Aluminum extrusion dies
Forging and forming dies
Spindles for grinding machines
Gun barrels
Springs
Crankshafts and camshafts
Other wear components

Facilities

Gas Nitriding/Nitrocarburizing (900° - 1200°F)

Maximum Load Sizes

Pit Furnace - 144" Diameter by 96" High
Pit Furnace - 180" Diameter by 144" High
Pit Furnace - 24" O.D. x 36" High
Bell Furnaces (4) - 72" Diameter by 84" High
Pit Furnace (2) - 54" Diameter by 180" High
Pit Furnace - 36" O.D. x 268" High