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Bronze is usually made up of copper (about 90%) and tin (about 10%)

Brass is usually made up of copper and zinc.

Some alloys are called bronze when they are actually brass, such as "commercial bronze" which is made from copper and zinc.

Other metals may also be added, but if the main addition is tin, it's a bronze, and if the main addition is zinc, it's a brass.

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14y ago

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