Craft · 6 pages · 12 min

Why bells are bronze

Bells are cast in high-tin bronze because that alloy is hard, elastic, and slow to damp a ring.

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From the opening

Bells are made of bronze because a high-tin copper alloy is hard and elastic enough to ring, and it wastes little of the blow as internal rubbing inside the metal. The shape of the bell matters, but the alloy is what lets that shape keep sounding after the clapper hits. The opening covers high tin makes the alloy ring, low damping keeps the tone, and the bell is cast, not forged.

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Inside

High tin makes the alloy ring
Low damping keeps the tone
The bell is cast, not forged
A crack breaks the vibration
Where the idea stops applying
A distinction worth keeping

Sources

High-tin bell metal bronze
Low internal damping of a ringing alloy

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Why bells are bronze

From the opening

Inside

Sources

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