This case study highlights the successful supply of C46400 Naval Brass pipes for a marine condenser and seawater cooling system in a coastal power facility in Spain. The client required a reliable copper alloy solution capable of withstanding continuous seawater exposure, erosion-corrosion, and biofouling conditions.
Order Details
Product: C46400 Naval Brass Pipe (CuZn39Sn1)
Standard: ASTM B111 / ASTM B43
Size Range: Ø25 mm – Ø150 mm
Wall Thickness: 2.5 mm – 8 mm
Total Quantity: 22 metric tons
Delivery Condition: Annealed, straight length
Application: Condenser tubes & seawater pipeline system
Project Requirements
The client's system required materials with:
Excellent resistance to seawater corrosion and dezincification
Strong performance under high-flow cooling water conditions
Resistance to biofouling and marine organisms
Good mechanical strength and fabrication performance
Long service life with reduced maintenance
Previously used standard brass and coated steel pipes suffered from:
Rapid corrosion and scaling
Reduced heat exchange efficiency
Frequent maintenance shutdowns
Material Selection – Why C46400 Naval Brass?
C46400 Naval Brass was selected due to its superior marine performance:
Enhanced resistance to seawater corrosion due to tin addition
Excellent resistance to dezincification
Good resistance to erosion-corrosion in flowing seawater
High strength and durability compared to standard brass
Proven use in shipbuilding and marine heat exchangers
Manufacturing & Quality Control
Extrusion and cold drawing for precise pipe dimensions
Eddy current testing for defect detection
Hydrostatic pressure testing for leak prevention
Chemical composition verification (Cu, Zn, Sn content)
Surface cleaning and anti-oxidation treatment
Performance Advantages
Long-term durability in seawater environments
Improved heat transfer efficiency in condenser systems
Reduced scaling and biofouling impact
Lower maintenance frequency and operational cost
Reliable performance under continuous marine conditions
Project Outcome
A total of 22 tons of C46400 Naval Brass pipes were successfully delivered and installed in the condenser and seawater cooling system. After operation:
No signs of dezincification or severe corrosion
Stable system performance and improved cooling efficiency
Maintenance intervals significantly extended
The client confirmed C46400 Naval Brass as a preferred material for future marine condenser and seawater pipeline projects.
Keywords
C46400 Naval Brass Pipe Case Study, CuZn39Sn1 Marine Application, Naval Brass Tube Spain Project, Seawater Cooling Pipe Material, Condenser Tube Copper Alloy, Marine Corrosion Resistant Brass, Heat Exchanger Brass Pipe
