What attribute characterizes copper alloys suitable for marine applications?

Copper alloys that are suitable for marine applications are characterized by their resistance to dezincification. Dezincification is a corrosion process that selectively leaches zinc from brass alloys, leading to deterioration of the material and a loss of mechanical properties. This is particularly important in marine environments where copper alloys are often exposed to seawater, which can accelerate corrosion processes.

The ability to resist dezincification allows these alloys to maintain their structural integrity and functionality over time, making them reliable choices for components in marine settings, such as fittings, valves, and propellers. Therefore, when selecting materials for marine applications, an important consideration is their resistance to this specific type of corrosion, ensuring longevity and performance.