Beryllium is one of the lightest rare non-ferrous metals with many excellent properties and is widely used in nuclear technology, aerospace and aviation industry, inertial navigation instruments and other high-precision fields. Beryllium has low density, high melting point, high modulus, good radiation transmittance, low Poisson’s ratio, good nuclear properties, high specific heat, good dimensional stability, good thermal conductivity, and resistance to infrared light. Compared with other metals, it has more application value in high-precision fields.

Metal beryllium is expensive and is mainly used in the defense and aerospace fields where the price factor is almost ignored, and a small amount is used in commercial fields where the performance of other materials cannot meet the requirements. The application of metal beryllium is divided into seven aspects, namely nuclear reactors, inertial navigation, optical systems, structural materials, thermodynamics, high-energy physics and high-end equipment applications.