Copper No. 101 is a wrought oxygen-free, high-conductivity copper for electrical and electronic applications. Its trade designation is OFE (Oxygen Free Electronic) copper. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness and fatigue. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Cu-278. Producer or source: Copper and copper alloy mills.