Naval brass is a type of brass alloy that is made up of copper, zinc, and a small amount of tin. The tin content can range from 0.5% to 1.5%. The term “naval” refers to its historical use in the construction of naval vessels due to its high corrosion resistance in saltwater environments.

Naval brass has a gold-like color and is known for its excellent strength, durability, and resistance to wear and tear. It is commonly used in marine hardware, such as propellers, shafts, and valves, as well as in various applications where corrosion resistance is important. Naval brass can also be found in musical instruments, such as bells and cymbals, and in decorative applications due to its attractive appearance.

UNS C46400

UNS C46400 is a copper-zinc alloy that is also known as naval brass. It is a wrought alloy that contains 59-62% copper, 0.5-1% tin, 38-40% zinc, and small amounts of lead and iron. The tin content in C46400 gives it good resistance to corrosion in seawater and other corrosive environments, making it an ideal material for marine applications.

UNS C46400 has good strength, ductility, and toughness, and it is often used in the manufacture of marine hardware, such as propeller shafts, valves, and fittings, due to its high corrosion resistance in saltwater environments. It is also used in the construction of steamship boilers, condensers, and other industrial equipment that require good corrosion resistance and thermal conductivity.

UNS C46400 is a readily machinable and workable alloy, and it can be fabricated using a variety of methods, including brazing, soldering, and welding. It has good resistance to dezincification, a form of corrosion that can occur in some brass alloys, and it can maintain its mechanical properties at elevated temperatures.