Most coins nowadays are not made of iron. Most coins in the United States are made of Nickel and Copper (small amounts of Copper in pennies).
Iron rusts easily, so coins are rarely made of that metal. However, many countries use steel in their coins, among them the UK, Canada, and the EU.
They do not have iron content in them
Silver U.S. coins are made entirely of silver and copper -- neither of which is a magnetic metal. Base metal coins that are magnetic, likely contain some amount of iron -- a magnetic metal, or a high concentration of nickel which is also attracted to a magnet.
Because it have some particles of iron in it,, and also some other metals like alluminium,copper etc.
If they were, they would rust too easily from the water vapor in the atmosphere and the oils from our fingers and be useless as they would not last long. Copper, nickel, silver and gold have become the metals of choice for coins as they resist rust.
Only those coins made from iron or an iron alloy, and that are rusty.
iron was added to the copper coins somewhere in the 1990.
No US dollars contain iron.
Nickel, Zinc, Copper, Iron
Iron rusts easily, so coins are rarely made of that metal. However, many countries use steel in their coins, among them the UK, Canada, and the EU.
All coins, even gold and silver, will tarnish, but rust is iron oxide, so only coins with iron in them will rust. The only ones I can think of are the steel 1943 US cents and some European Coins from the WW2 era.
COINS DUMBAZZ
They do not have iron content in them
US coins have never been made of iron.
It doesn't rust, as iron would.
It easily becomes rusty.
Modern coins cannot rust, as they are not made of iron.