... commonly utilized Copper Beryllium alloy and is notable for its highest strength and hardness compared to ... to stress relaxation at elevated temperatures.Typical Application for C17200 Beryllium Copper Alloys: Electrical Industry: Electrical ... , Electrochemical, Shafts, Non Sparking Safety Tools, Flexible Metal Hose, Housings for Instruments, Bearings, Bushings, Valve Seats, Valve Stems, Diaphragms ...