Admiralty Brass Grade C44300 is a copper–zinc–tin alloy specifically engineered for condenser, heat exchanger, and seawater cooling applications.
The controlled addition of tin (Sn) provides strong resistance to dezincification, while the copper-rich base delivers excellent thermal conductivity and corrosion resistance.
C44300 is widely recognized as a standard condenser brass used in marine, power generation, and desalination industries.
Metallurgical & Strengthening Behavior
Predominantly α-phase brass microstructure
Strengthening by solid-solution (Zn in Cu)
Additional strengthening through cold working
(tube drawing and rolling)
Annealing restores ductility
No precipitation hardening
Exhibits excellent resistance to dezincification and good resistance to erosion corrosion, even in warm or polluted seawater.
Available Forms
Seamless tubes (primary form)
Pipes
Sheets and plates
Strips
Rods and bars (limited use)
Typical tube sizes:
Outer Diameter: 6 mm – 50 mm
Wall thickness: Various, as per application
Key Characteristics
✔ Excellent seawater corrosion resistance
✔ High thermal conductivity
✔ Superior resistance to dezincification
✔ Good formability for tube drawing
✔ Proven long-term service performance
✔ Stable in polluted and warm seawater
Applications
Heat Transfer Systems
Condenser tubes
Heat exchanger tubes
Evaporator tubes
Marine & Offshore
Ship cooling systems
Seawater intake lines
Marine condensers
Power & Industrial
Thermal power plant condensers
Nuclear power plant condensers
Desalination plants
Advantages
✔ Long service life in seawater
✔ Excellent heat-transfer efficiency
✔ Lower cost than copper–nickel alloys
✔ Easy fabrication into thin-wall tubes
✔ Reduced maintenance and downtime
✔ Industry-proven alloy standard
Why Choose Admiralty Brass – Grade C44300?
C44300 is the preferred choice when reliable condenser and heat-exchanger performance is required, with high resistance to seawater corrosion and dezincification.
It offers a cost-effective alternative to copper–nickel alloys while delivering proven long-term performance in power, marine, and desalination systems.
Industry Insight:
C44300 is often selected when pure copper corrodes too rapidly,
but Cu–Ni alloys are unnecessary or too expensive.