C464 Naval Brass is the alloy of choice wherever seawater, high humidity, or aggressive corrosive conditions are a defining environmental factor. Its duplex alpha-plus-beta microstructure delivers a combination of strength and rigidity that few alternative materials can match at comparable cost. The defining feature of C464 is its tin content: by partially replacing zinc with tin, the alloy achieves a dramatic uplift in seawater corrosion resistance while simultaneously gaining inherent immunity to dezincification — the gradual leaching of zinc that weakens conventional brass in marine environments. C464 also demonstrates strong resistance to wear, fatigue, galling, and stress corrosion cracking, making it indispensable in naval, offshore, and heavy marine fabrication.