BRUSH WELLMAN Alloy 360 beryllium nickel strip combines unique mechanical and physical properties required in electrical, electronic and electromechanical systems. Strength, stress-relaxation and fatigue are some of those properties. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and surface treatment. Filing Code: Ni-413. Producer or source: Brush Wellman Inc..