Brass 260 is a streamlined tube shape made from a ductile yellow brass alloy composed of 70% copper and 30% zinc. This alloy is known for its good strength, formability, and corrosion resistance, making brass 260 streamline tubes suitable for applications like ammunition casings, fasteners, electrical components, and architectural elements. They are also commonly used for small-scale hobby projects such as model planes and scale builds due to their ease of machining and decorative qualities.