From 1992, copper and nickel-plated steel replaced bronze and cupronickel, respectively.
From the en.wikipedia.org
Cupronickel 200 pesetas were introduced in 1986, followed by aluminium-bronze 500 pesetas in 1987.
From the en.wikipedia.org
It looks and fells like a 50p piece, but has taken the form of a cupronickel nugget of treachery.
From the guardian.co.uk
In 1973, a new cupronickel five cent coin was issued.
From the en.wikipedia.org
Cupronickel 5 sen coins were introduced in 1889.
From the en.wikipedia.org
The new coins will be made of cupronickel.
From the en.wikipedia.org
Cupronickel 10 pesetas were introduced in 1983.
From the en.wikipedia.org
In 1964, coins were introduced for 1, 5 and 10 francs, with the 1 and 10 francs in cupronickel and the 5 francs in bronze.
From the en.wikipedia.org
Cupronickel replaced silver in the 5 cents in 1907.
From the en.wikipedia.org
More examples
A 60/40 alloy of copper and nickel
Copper-nickel; term often employed by the government.
A mixture of copper, nickel, and possibly other metals. Today this term is most often used to refer to the current coins made by fusing layers of copper and nickel or combination alloy mixtures, resulting in a "sandwich" type of coin. The current US dimes and Quarters are examples. ...
90% copper / 10% nickel alloy which has high corrosion resistance to water containing salt, sulphur, chlorides and other dissolved minerals.
(n.) An silver-colored alloy of copper and nickel used to make bullet jackets. U.S. Ball, .30, M1906, and British .303 Small Arms Ammunition Ball MK. VII, for example, were made with cupro-nickel jackets.
Alloy used in the manufacture of small arm bullet jackets. Because of its tendency to deposit fouling in the bore, this alloy has been largely superseded by gilding metal.
A mixture of Copper and nickel used to make many current coins including all the silver coloured current British coins (5p, 10p, 20p, 50p). First used in Great Britain after the use of silver was completely stopped in 1947.