Know All About Admiralty Brass

UNS C44300 Admiralty Brass Tube PDF

Admiralty brass is a type of brass with a 70% copper, 29% zinc, and 1% tin composition. Brass is available in more than 40 standard grades, with zinc contents ranging from 5 to 40%. Tin can dissolve in brass in a variety of ways. Brass can become stronger and harder with a tiny quantity of tin solid solution added, but when the amount is greater than 1%–5%, the plasticity is reduced. With the inclusion of alloying elements like Tin, Arsenic, Manganese, Aluminum, Silicon, and Lead, which are typically less than 5%, brass is a copper-zinc alloy. These additional components improve the overall alloy qualities, making the substance perfect for particular application areas.

Tin was added because it has more corrosion resistance in seawater, which is why. Admiralty Brass is often known as "admiralty bras" because of its excellent corrosion resistance and particular applicability in freshwater, salty, or brackish water.

Admiralty brass is offered in sheets & tube form. Admiralty Brass tubes are used specifically for vapour condensers that are cooled with fresh, salt, or brackish water because they offer exceptional corrosion resistance. In oil refineries, thermal equipment, and other industrial operations, they are typically employed as condenser tubes, evaporator and heat exchanger tubes, distiller tubes, and distiller tubing. The petrochemical sector, shipbuilding, power plants, desalination plants, etc. use Admiralty Brass, one of the most widely used brass alloys in their family, primarily in condenser and heat exchanger applications.

Admiralty brass is available in three varieties, designated by the UNS numbers C44300, C44400, and C44500 by the American Society for Testing Materials (previously used destinations are type B, type C, and type D in turn). While there is a slight variation in the amounts of arsenic, antimony, and phosphorus, their copper content of them varies from 70% to 73%. In the absence of a stated temper, copper alloy UNS C44300, C44400, and C44500 tubes must be supplied in the annealed O61 temper.

Founded in 2008, we are a leading professional exporter specializing in a comprehensive range of high-quality copper products for global markets. Our core product portfolio encompasses various forms and specifications to meet diverse industrial needs.

Copper Tubes & Pipes:
We supply both Copper Seamless Tubes (ASTM B68, B75) and Copper Welded Tubes, including Pure Copper Tubes (C11000, C12200), Brass Tubes (C23000, C26000, C28000), and specialized Admiralty Brass Tubes (C44300) for superior corrosion resistance in heat exchanger applications. Our offerings comply with key ASTM standards such as ASTM B88 for seamless water tube and ASTM B111 for condenser tubes.

Copper Sheets & Plates:
Our range covers from thin-gauge Thin Copper Sheet (ASTM B152) to heavy-duty Thick Copper Plate, available in alloys like Pure Copper (C11000), Brass Sheet (C26000), Phosphor Bronze Sheet (C51000, C52100), and corrosion-resistant Admiralty Brass Sheet/Plate (C44300).

Copper Rods & Bars:
We provide Copper Round Rod, Copper Square Bar, Copper Hexagon Bar, and Copper Flat Bar in various tempers. Products include Free-Cutting Brass Rod (C36000 per ASTM B16), Oxygen-Free Copper Rod (C10100/C10200, ASTM B187), Beryllium Copper Bar (C17200, ASTM B196), and Admiralty Brass Rod (C44300).

Copper Wires & Strips:
Our Copper Wire products include Bare Copper Wire (ASTM B1/B2/B3), Enamelled Copper Wire, and Brass Wire. We also supply precision Copper Strip (C11000, C26800), Brass Strip, and Admiralty Brass Strip (C44300) for electrical, marine, and fabrication applications.