Aerospace specifications often call for controlled nitriding with limited white layer capable of producing deep diffusion cases on Nitralloy 135M and other alloyed steels. Such well controlled nitriding produces a hardened case that has excellent wear and toughness properties. The reduction in white layer thickness eliminates the need for costly finishing operations that might otherwise have been required.
Properties of small shafts exposed to atmospheric conditions and/or other corrosive environments are frequently treated in an in-process post-nitriding oxidizing treatment. Such components have excellent wear and corrosion properties, as well as an attractive appearance.
Shafts made of stainless steel or nickel based alloys require vacuum hardening and tempering, frequently followed by nitriding.
Forging / Forming Dies
Forging and forming dies made of tool steels, alloy steels, cast steels or cast iron are frequent visitors in a heat treating shop. The dies are vacuum hardened and tempered, flame hardened, flood-welded, and nitrided, as applicable, for better life.
Nitrided piston rings show high
surface hardness at elevated temperatures, and good sliding wear resistance
with a low coefficient of friction.
Springs are routinely nitrided at Nitrex to enhance their fatigue resistance to premature failure.
The component is delivered in an “almost” finished-machined state to one of our locations where it is subjected to such operations as buffing, sizing, nitriding, polishing, cleaning, application of R/P and inspection. The finished product is delivered to the customer’s assembly line.
Fuel injector bodies and spray tips are vacuum hardened and nitrided.
Aluminum Extrusion Dies
Extrusion dies are nitrided and
re-nitrided several times to extend their die life. Nitriding parameters are
adjusted to the expected die duty cycle resulting in significant cost reductions
and virtual elimination of unscheduled press shutdowns.
For a list of typical nitriding applications please click on one of the following categories.
Automotive components - Nitriding
Mechanical components - Nitriding
Tool & Die - Nitriding
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