Nivarox/en

Nivarox (Nicht VARiabel, OXidabel [Non-variable, oxidable])

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An alloy composed of iron and nickel with additions of chromium, titanium, and beryllium. It is very suitable for the manufacture of hairsprings, or balance springs, due to its antimagnetic and temperature-compensating properties. The addition of beryllium dates back to a patent awarded to Richard Lange. This chemical element enhances the hardness and elasticity of the alloy.