50-cent Piece (Canadian Coin) - History of Composition

History of Composition

Years Weight Diameter Thickness Composition
2000–present 6.9 g 27.13 mm 1.95 mm 93.15% steel, 4.75% copper, 2.1% nickel plating
1980–1999 8.10 g 27.13 mm 1.9 mm 99.9% nickel
1968–1979 8.10 g 27.13 mm 1.93 mm 99.9% nickel
1920–1967 11.66 g 29.72 mm n/a 80% silver, 20% copper
1908–1919 11.62 g 29.72 mm n/a 92.5% silver, 7.5% copper

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