Beryllium bronze has good comprehensive properties. Its mechanical properties, namely strength, hardness, wear resistance and fatigue resistance, rank first among copper alloys. Its electrical conductivity, thermal conductivity, non-magnetic, anti-spark and other properties cannot be compared with other copper materials. The strength and conductivity of beryllium bronze in the solid solution soft state are at the lowest value. After work hardening, the strength is increased, but the conductivity is still the lowest value. After aging heat treatment, its strength and electrical conductivity increased significantly.
The machining properties, welding properties and polishing properties of beryllium bronze are similar to those of general high copper alloys. In order to improve the machining performance of the alloy and meet the precision requirements of precision parts, countries have developed a high-strength beryllium bronze (C17300) containing 0.2% to 0.6% lead. Its performance is equivalent to C17200, but the cutting coefficient of the alloy is Increased from 20% to 60% (free-cutting brass is 100%).