Beryllium Copper Strip

Features of Beryllium Copper

Beryllium Copper is a copper alloy with the optimum combination of mechanical and physical properties such as tensile strength, fatigue strength, performance under elevated temperatures, electrical conductivity, bending formability and corrosion resistance. Beryllium Copper is widely used as contact springs in various applications like connectors, switches, relays, etc. NGK offers a variety of Beryllium Copper alloys in several tempers to cover different applications. Our Beryllium Copper products are available in strip, plate, rod and wire forms.

Tensile Strength

Beryllium Copper can attain the tensile strength of 1500N / mm2 through precipitation hardening and can withstand very high bending stress.

Bending Formability

Age hardenable material can be formed into complicated shapes and precipitation hardened afterwards. Among Mill-hardened material, which dose not require heat-treatment after stamping or forming, "Type-B" and "Type-S" have especially well-balanced performance in strength and formability.

Electrical Conductivity

The electrical conductivity of beryllium copper ranges from 20 to 70 IACS, depending on alloy and temper. Beryllium Copper is often used a high current density spring material.

Fatigue Strength

Because Beryllium Copper exhibits excellent resistance to fatigue, it is also used in components where a longer life in service with a cycle stress environment is needed.

Thermal Stability

Due to less stress relaxation at elevated temperatures Beryllium Copper can be used in a wide range of temperatures with little loss of mechanical properties.

Corrosion Resistance

Beryllium Copper has excellent corrosion resistance, nearly the same as Nickel Silver.

New Products

Mill-hardened Alloy-25 "Type-B", "Type-S"

New grade "Type-B" and "Type-S" mill-hardened Alloy-25 have been developed by refinement of the manufacturing process for improved formability.