Beryllium-Copper

It is similar in mechanical properties to many high strength steels but, compared to steels, it has better corrosion resistance (approximately equivalent to nickel silvers), higher electrical conductivity (16-65% IACS) and higher thermal conductivity (210W/m^oC). It is also non-sparking and non-magnetic. Beryllium-copper should only be specified where its unique combination of properties can be fully exploited. Beryllium-copper has long been used for non-sparking tools in the construction, mining, gas and petrochemical industries.