Tin-zinc

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Tin-zinc
Tin-zinc yen coins
General information
Material type	metal alloy
Color	silver
Magnetic?	no
Composition	70-90% tin, 10-30% zinc
Numismatic information
Used for	circulation coins
Used by	Empire of Japan
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Tin-zinc is an alloy typically composed of 70-90% tin and 10-30% zinc. It is one of several metallic alloys used for coins.

Description

Tin-zinc was first introduced in the 1940s. It is very similar to aluminum in appearance and in mass. The alloy is resistant towards corrosion, and sulfur-enhanced, salty, and acidic environments.

Numismatics

Tin-zinc is not a common alloy used in coin production. Four Imperial Japanese yen coins, the 1944-45 1 sen, 1944 5 sen, 1945-46 5 sen, and 1944 10 sen coins were struck in tin-zinc during World War II, and are the only coins mentioned as being composed "tin-zinc" in the Standard Catalog of World Coins.

See also

• Copper-tin-zinc