C68700 – Aluminum brass – CuZn22AL2

C68700 aluminum brass is a copper-zinc alloy enhanced with aluminum and a corrosion inhibitor to deliver exceptional resistance to high-velocity seawater and brackish water. Known for its strength and durability, this alloy is engineered to withstand impingement attack and erosion-corrosion in aggressive cooling environments.

Inhibited aluminum brass tubes (C68700) are widely used in condenser systems, especially in marine, power generation, and desalination settings, where water velocity and salt content challenge the long-term performance of standard copper alloys.

Learn more about Aluminum brass in our detailed guide.

C68700 aluminum brass tubes are commonly used in:

• Condenser tubes for high-velocity cooling water
  

• Seawater cooling systems in marine and offshore applications
  

• Power station condensers (marine and land-based)
  

• Desalination plants and saltwater treatment facilities
  

• Heat exchangers exposed to turbulent or contaminated water
  

• Industrial cooling systems with brackish or saline water circulation

• Exceptional resistance to impingement and erosion: handles high-velocity water without thinning or surface degradation.
  

• Superior corrosion resistance in salt and brackish water: aluminum content and inhibitors protect against pitting, dezincification, and scaling.
  

• Reliable performance in marine and industrial settings: maintains mechanical integrity even under fluctuating thermal loads and flow conditions.
  

• High thermal conductivity for effective heat transfer: ensures energy-efficient operation in demanding cooling applications.
  

• Extended service life: reduces maintenance costs and unplanned downtime in critical systems.

• Compliance with international standards: manufactured to meet ASTM B111 and other global specifications.