... coppe CuCo1Ni1Be—CW103C (DIN 2.1285) Cobalt Nickel Beryllium Copper Alloy contains approximately 1% Cobalt, 1% Nickel and 0.5% Beryllium ... as CuCo2Be-C17500 and CuNi2Be-C17510.Typical Application for CuCo1Ni1Be - Cobalt Nickel Beryllium Copper AlloysElectrical: Fuse Clips, Switch Parts, Relay parts ... Butt Welding Jaws, Contact Tips for Submerged-Arc-Welding CW103C Cobalt Nickel Beryllium Copper