Admiralty Brass: A Versatile Copper Alloy for Marine Applications

Admiralty Brass: A Versatile Copper Alloy for Marine Applications
Admiralty Brass: A Versatile Copper Alloy for Marine Applications

This post was most recently updated on May 16th, 2023

what is Admiralty Brass?
Admiralty Brass, also known as C44300 Admiralty Brass, is a copper-zinc-tin alloy that is widely used in marine applications due to its exceptional corrosion resistance, high strength, and excellent thermal conductivity. This article will discuss the properties, applications, and advantages of Admiralty Brass in marine industries.

Properties of Admiralty Brass

Admiralty Brass is composed of 70% copper, 28% zinc, and 2% tin. The presence of tin in Admiralty Brass makes it more resistant to dezincification, which is a type of corrosion that can occur in brass alloys with a high zinc content. Additionally, a small amount of lead is added to enhance its machinability. Admiralty Brass has a range of properties that make it ideal for marine applications. It is highly resistant to corrosion in seawater, even at high temperatures, and has good resistance to stress corrosion cracking. It has excellent strength and ductility, allowing it to withstand the stresses and strains of use in harsh environments. Admiralty Brass has a high thermal conductivity, making it an effective material for heat exchangers and other equipment that requires efficient heat transfer.

Applications of Admiralty Brass

Admiralty Brass is a preferred material for condenser tubes due to its superior corrosion resistance and thermal conductivity. It is widely used in heat exchangers, seawater piping systems, and other equipment where high strength and corrosion resistance are essential. The alloy is also used in marine hardware, such as propellers and fittings, due to its excellent resistance to corrosion and high strength. Admiralty Brass is a versatile material that can be easily shaped into intricate parts and components, making it ideal for manufacturing marine components.

Advantages of Admiralty Brass

Admiralty Brass offers a range of benefits over other materials, making it an attractive choice for marine applications. The alloy’s exceptional corrosion resistance makes it highly durable and long-lasting in saltwater environments. Its high strength and ductility make it an ideal material for applications that require both mechanical properties and resistance to corrosion. Additionally, its high thermal conductivity makes it an effective material for heat transfer applications. Admiralty Brass is also readily available and easy to work with, making it a cost-effective solution for marine applications.


Admiralty Brass is an important material for the marine industry and other applications that require resistance to corrosion in harsh environments. Its exceptional properties, including corrosion resistance, high strength, and excellent thermal conductivity, make it an ideal material for manufacturing marine components such as heat exchangers, condenser tubes, seawater piping systems, and marine hardware. Admiralty Brass is a versatile and cost-effective solution for marine applications that require high performance and durability.

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Guangdong Metal Corporation is a professional metal manufacturing company located in China. With years of experience in the industry, we are dedicated to providing high-quality metal products and solutions to our customers worldwide. Our company is equipped with state-of-the-art facilities and advanced technologies, allowing us to produce a wide range of metal products, including aluminum, copper, brass, and stainless steel.


ASTM B111/B111M – 18 Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
Admiralty Brass – C44300, Austral Wright Metals
The Corrosion Resistance of Copper and Copper Alloys in Seawater, Copper Development Association
Navarro, J. L., & Torres, J. M. (2013). The corrosion resistance of brass in marine environments. Materials, 6(4), 1484-1511.

Sikander Zaman
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