Copper 110 square tube is made from the highly conductive and formable copper alloy UNS C11000, containing 99.9% copper and 0.04% oxygen. This electrolytic tough pitch (ETP) copper tube has excellent electrical and thermal conductivity, corrosion resistance, and formability. It is commonly used for a wide range of applications including plumbing, electrical wiring, busbars, power systems, architectural elements, and ornamental projects where a precise square tube shape is required.