No, but copper and nickel was. This is why we have 1943 steel Lincoln cents and the SILVER War Nickels of 1942 to 1945.
The Iraqi coins made for general use since 1960 are made of nickel, copper-nickel, stainless steel, copper plated steel and nickel plated steel.
The 1943 Lincoln cent was made of steel, not the nickel. Do a Google search to find the picture you want.
iron, nickel, cobalt & Steel
Nickel silver, German silver, Argentan, new silver, nickel brass, albata, alpacca of steel sheet metal; for example, the famous Rolls-Royce Silver Ghost of 1907.
Silver, over time, is oxidised by air and loses its shine. Stainless silver is electoplated with nickel (as is stainless steel) to prevent the oxidation. Electroplating involves immersing the silver object in a solution of a nickel salt and applying a negative charge to the silver to attract the positive nickel ions in the solution to form a nickel coating on the silver.
Metals that resemble the appearance of silver include aluminum, stainless steel, and nickel.
A 1943 penny could be a "steel penny" as they were made of steel due to copper being needed for other wartime purposes. Nickels were made of 35% silver during WWII. If a 1943 penny and nickel were mixed, it would potentially be an error as they wouldn't have been in circulation together due to their different compositions.
The 1943 Lincoln cent is zinc coated steel not nickel and average values are 5 to 10 cents
It has a silver color because it is made out of steel. Copper was needed for the war and was in short supply, so steel pennies were made.
It isn't made of silver. Canadian nickels were made of 99.9% nickel for many years. From 1982 to 1999 the coin was made of 75% copper and 25% nickel, the same composition as US nickels. Starting in 2000 the Royal Canadian Mint began phasing in production of the coin using nickel-plated steel. Both steel and copper-nickel coins were produced until 2006 when all production was changed over to plated steel.
Silver is a not magnetic metal - the most highly magnetic metal is iron - so no unless the cores of the coins are iron