BERYLCO 717C is a high strength, age-hardenable copper-nickel casting alloy. It has high resistance to sea water corrosion and is recommended for marine equipment applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: Cu-178. Producer or source: Beryllium Corporation.