So after writing the below quoted bits, i did a tad of web
And the same bit also noted that metallic nickel is not in the 5
cent nickel coin.
The U.S. 5 cent coin, the nickel, since 1955, and before WW2 as well
(wartime ones were steel), are an alloy of 75% copper, 25% nickel.
The Canadians have used nickel even more. From 1968 to 2000, the
Canadian dime, quarter, and 50 cent piece were essentially pure
nickel. Their 5 cent piece was pure nickel from 1955 to 1981, and
from 1982 to 2000, a copper/nickel alloys similar to the U.S. alloy
(I think. didn't write down the exact alloy, and i'm too lasy to go
look again (grin)). What I wasn't aware of is that Canada over the
last two years has been transitioning to a totally new process.
Most (or was it all, don't remember) of their coins are now steel
cores, with multilayer electroplated surfaces, including pure nickel
on some. Even the new canadian penny is steel, with a copper