Alloy composition of RMB coins in circulation in China

1955 1,5 points: aluminum copper alloy;

After 1956, 1,2,5 points: Al Zn Ni alloy.

1 corner:

One of the Great Wall series (1980-1986): copper zinc alloy;

Chrysanthemum series (1991-2000): aluminum zinc alloy;

Orchid series (1999-2003): aluminum zinc alloy;

Orchid series (2005-2007): stainless steel.

2 corners:

Great Wall series (1980-1986) two corners: copper zinc alloy.

5 jiao:

Great Wall series (1980-1986) Wujiao: copper zinc alloy;

Plum series (1991-2001) pentagons: copper zinc alloy;

Five corners of Lotus Series (2002-2007): copper plating on steel core.

1 yuan:

Great Wall series (1980-1986) one yuan: copper nickel alloy;

Peony series (1991-2000) one yuan: nickel plating on steel core;

Chrysanthemum series (1999-2007) one yuan: nickel plating on steel core.

Jpspec instrument works with the people's Bank of China to accurately measure the alloy content of coins