What is Naval Brass?

The Naval Brass alloy is categorized under the family of Alpha Beta. It also falls under Duplex Brasses. It is basically comprised of forty percent Zinc; thirty-nine percent Copper and one-percent tin. There is a trace amount of lead in the mix. The brass is very strong and superior in strength to other brass families not falling under the same family classification.

Since the brass is resistant to corrosion and is a very strong material it is extremely suitable for use in fresh water as well as salty waters. Naval Brass is used in many applications–too many to name–however, other uses include propeller shafts, fittings, marine hardware, shafts and turn buckles. Industrial applications include condenser plates, welding rods, valve stems, and heat exchanger tubes.

C46400 Naval Brass

The brass indicative of its name was first developed for applications on the sea. The tin was added to the composition of the alloy in order to make it more resistant to corrosion. The ever so slight presence of lead is assistive in machinability of the metal. The additive of tin makes the brass highly resistant to dezincification. Dezincification is when one of the elements of the alloy is removed due to corrosion. The critical issue of dezincification was initially noticed in the brass tubes of a ship’s condenser during the early 20th century. Since that time, numerous alloys have been manufactured in order to halt the problem and one alloy which addresses the issue is Naval Brass

The alloy is used on a large scale within marine hardware applications. It has a high tensile strength which makes it the perfect alloy for bushings, valve stems, and fastener applications. All in all, Naval Brass is recognized as a very strong brass. It is dependable and reliable.


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