naval brass

alloy

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Last updated

July 1, 2026

Quick Summary

Naval brass is an alloy primarily composed of copper, zinc, and a small amount of tin. This specific composition, typically around 60% copper, 39% zinc, and 1% tin, makes it resistant to corrosion, particularly in underwater applications. It is often used for bolts and other parts that are submerged.1

A similar alloy, admiralty brass (also known as admiralty metal), contains a higher percentage of copper (about 71%), with 28% zinc and 1% tin, offering enhanced corrosion resistance. These tin-containing brasses are noted for their improved ability to withstand seawater compared to other brasses.234

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brass
Characteristics of the alloy
…are more easily machined; the naval and admiralty brasses, in which a small amount of tin improves resistance to corrosion by seawater; and the aluminum brasses, which provide strength and corrosion resistance where the naval brasses may fail.
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…are more easily machined; the naval and admiralty brasses, in which a small amount of tin improves resistance to corrosion by seawater; and the aluminum brasses, which provide strength and corrosion resistance where the naval brasses may fail.
Read More