BRUSH WELLMAN Alloy 174 is a beryllium copper alloy with cobalt designed to be a current-carrying component where high strength and relaxation resistance alloys are needed for body downsizing and miniaturization of microprocessors. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on forming and heat treating. Filing Code: Cu-578. Producer or source: Brush Wellman Inc.. See also Alloy Digest Cu-509, May 1986.