User:Contributor1972/sandbox/Draft:Nitronic

History
Nitronic is a collection of nitrogen strengthened stainless steels developed by Armco. The trademark is now owned by AK Steel since 2000 . The Nitronic name is due to the addition of nitrogen to the alloy, which enhances the strength internally rather than being Nitrided on the surface as some steel are treated. The Nitrogen is homogenous throughout the material. Nitronic materials have about twice the yield strength of 304L and 316L.

Uses today
Nitronic 30 is used to lighten transportation vehicles . Buses and railcars benefit from the high strength to weight ratio for energy savings, meaning less steel used for the application.

Nitronic 40 is used in the aerospace industry as hydraulic tubing . Nitronic 50 is used in marine environments including boat shafting and solid rod rigging. .

Composition
Nitronic alloys have widely varying compositions, but all are predominantly iron, chromium, manganese and Nitrogen.