Beryllium copper, also known as beryllium bronze, is a copper alloy with beryllium as the main alloy element. The content of beryllium in the alloy is 0.2 ~ 2.75%. Its density is 8.3 g/cm3.

Beryllium copper is a precipitation hardening alloy, and its hardness can reach hrc38 ~ 43 after solution aging treatment. Beryllium copper has good processing performance, excellent cooling effect and wide application.  More than 70% of the world’s total beryllium consumption is used to produce beryllium copper alloy.

1.Performance and classification

Beryllium copper alloy is an alloy with perfect combination of mechanical, physical, chemical and mechanical properties and corrosion resistance. It has strength limit, elastic limit, yield limit and fatigue limit equivalent to special steel; At the same time, it has high thermal conductivity, high conductivity, high hardness, high wear resistance, high temperature stability, high creep resistance and corrosion resistance; It also has good casting performance, non-magnetic and no spark during impact.

Beryllium copper alloy can be divided into deformed beryllium copper alloy and cast beryllium copper alloy according to the processing form of obtaining the final shape; According to the beryllium content and its characteristics, it can be divided into high strength and high elasticity beryllium copper alloy and high conductivity copper beryllium alloy.

2.Beryllium copper’s application

Beryllium copper is widely used in aerospace, aviation, electronics, communication, machinery, petroleum, chemical industry, automobile and home appliance industries. It is used to make important key parts, such as diaphragm, bellows, spring washer, micro electro-mechanical brush and commutator, electrical connector, switch, contact, clock parts, audio components, advanced bearings, gears, automotive appliances, plastic molds, welding electrodes, submarine cables, pressure housing, non sparking tools, etc.