Bronze with beryllium as the main additive element. The beryllium content of beryllium bronze is 0.2% - 2%, and a small amount (0.2% - 2.0%) of cobalt or nickel is added. The alloy can be strengthened by heat treatment. It is an ideal elastic material with high conductivity and high strength. Beryllium bronze has no magnetism, anti spark, wear resistance, corrosion resistance, fatigue resistance and stress relaxation resistance. It is easy to be cast and press formed. Beryllium bronze castings are typically used as molds for plastics or glass, resistance welding electrodes, explosion-proof tools for petroleum exploration, and submarine cable protection covers. Beryllium bronze processing materials are typically used as current carrying spring, connector, contact, fastening spring, leaf spring and spiral spring, bellows and lead frame in electronic devices https://www.zegotawire.com/beryl...llium-copper-plates.html