Brass and bronze flanges connect with pipe and fittings to form a piping system that transports air, drinking water, flammable gases, slurries, and chemicals in plumbing applications. Flanges allow breaks in pipelines to make valve, pump, and other replacements. Brass, an alloy of copper and zinc, is strong, highly conductive, maintains machineability at high temperatures, and resists corrosion from water, heat, acids, minerals, and peaty soils. Brass, a bright gold color, is compatible with stainless steel, copper, or zinc piping. Bronze, also known as red brass, is a metal alloy of copper and tin. Bronze resists corrosion from saltwater and has higher heat and electric conductivity than most metals. Brass and bronze flanges are available in a variety of shapes and sizes.