1 euro coins There are eight coins of the euro, ranging in value from one cent to two euros . The coins first came into use in 2002. The coins have a common reverse, portraying a map of Europe, but each country in the Eurozone has its own design on the obverse (including the three European microstates with currency agreements: Monaco, San Marino, and the (€1 or 1€) are made of two alloys An alloy is a partial or complete solid solution of one or more elements in a metallic matrix. Complete solid solution alloys give single solid phase microstructure, while partial solutions give two or more phases that may be homogeneous in distribution depending on thermal history. Alloys usually have different properties from those of the: the inner part of cupronickel, the outer part of nickel brass Brass is any alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. In comparison, bronze is principally an alloy of copper and tin. Despite this distinction, some types of brasses are called bronzes. Brass is a substitutional alloy. It is used for decoration for its bright. All coins have a common reverse side and country-specific national sides. The coin has been used since 2002, with the present common side design dating from 2007.
As of June 2008, there are estimated to be 5860 million one euro coins in circulation, up from 4910 million in 2005, making it the third least circulated euro coin (but combined it is the second highest value).[2]
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