Beryllium copper alloy is a copper-based specialty alloy containing 0.4% to 2.0% beryllium, with 0.3% to 2.7% nickel (Ni), cobalt (Co), iron (Fe), or lead (Pb) added according to grade requirements. Its high mechanical strength is achieved through controlled precipitation hardening, also known as age-hardening heat treatment.

As a high-elasticity copper alloy, beryllium copper combines high strength, high hardness, fatigue resistance, low elastic hysteresis, electrical conductivity, and long-term corrosion and wear resistance. It also offers low-temperature performance, non-magnetic properties, and non-sparking behavior under impact, making it suitable for demanding industrial environments.

Application

1) High Strength and High Elastic Modulus

After heat treatment, beryllium copper can achieve excellent mechanical properties, with tensile strength up to 1500 MPa and hardness up to 450 HV.

2) Bending Formability

In annealed or cold-worked temper conditions, beryllium copper can be formed into complex shapes.

3) Fatigue Resistance

Beryllium copper alloy provides strong fatigue resistance under reverse-bending loads, with fatigue strength up to 300 MPa.

4) Electrical Conductivity

Beryllium copper provides a practical balance of strength and conductivity, with electrical conductivity ranging from 22% to 70% IACS.