Gunmetal fittings, like other gunmetal components, exhibit excellent corrosion resistance due to the presence of tin in the alloy. This makes them well-suited for use in marine environments, where exposure to saltwater and moisture can lead to rapid corrosion of other metals.

Gunmetal fittings are known for their high mechanical strength and durability. They can withstand pressure and mechanical stresses, ensuring long-lasting and reliable performance.

Gunmetal is relatively easy to machine, allowing for precise shaping and threading of fittings to achieve proper connections and compatibility with different plumbing systems.