Mexican Coins

        Here is some info on the current coins used in Mexico. In 1992 becuase of the decreasing vaule of the peso Mexico replaced all of there coins with the new ones shown below.  One of these New Pesos equals one thousand old pesos.


5 Centavos

DIAMETER: 15.5 mm.

COMPOSITION: Stainless steel alloy.
      This alloy is composed as follows:
           between 16% and 18%, of chromium;
           0.75% of nickel, maximum;
           0.12% of carbon, maximum;
           1% of silicon, maximum;
           1% of manganese, maximum;
           0.03% of sulfur, maximum;
           0.04% of phosphorus, maximum;
           and the remaining of iron.

WEIGHT: 1.58 g



Ten Centavos

DIAMETER: 17.0 mm

COMPOSITION: Stainless steel alloy.
      This alloy is composed as follows:
           between 16% and 18% , of chromium;
           0.75% of nickel, maximum;
           0.12% of carbon, maximum;
           1% of silicon, maximum;
           1% of manganese, maximum;
           0.03% of sulfur, maximum;
           0.04% of phosphorus, maximum;
           and the remaining of iron.

WEIGHT: 2.08 g



Twenty Centavos

DIAMETER: 19.5 mm

COMPOSITION: Bronze-aluminum alloy.
      This alloy is composed as follows:
           92% of copper;
           6% of aluminum; and
           2% of nickel.

WEIGHT: 3.04 g



Fifty Centavos

DIAMETER: 22.0 mm

COMPOSITION: Bronze-aluminum alloy.
      This alloy is composed as follows:
           92% of copper;
           6% of aluminum; and
           2% of nickel;

WEIGHT: 4.39 g



One Peso

DIAMETER: 21.0 mm

 COMPOSITION: This coin will be bimetallic and composed by two alloys; one for its
 central part and other its perimetrical ring as described below:

1. Central part of the coin.
      This alloy is composed as follows:
           92% of copper;
           6% of aluminum; and
           2% of nickel;
 

2. Perimetrical ring of the coin.
      This alloy is composed as follows:
           between 16% and 18% , of chromium;
           0.75% of nickel, maximum;
           0.12% of carbon, maximum;
           1% of silicon, maximum;
           1% of manganese, maximum;
           0.03% of sulfur, maximum;
           0.04% of phosphorus, maximum;
           and the remaining of iron.

 TOTAL WEIGHT: 3.95 g



Two Pesos

DIAMETER: 23.0 mm

COMPOSITION: This coin will be bimetallic and composed by two alloys; one
 for its central part and other for its perimetrical ring as described below:

1. Central part of the coin.
      This alloy is composed as follows:
           92% of copper;
           6% of aluminum; and
           2% of nickel;

2. Perimetrical ring of the coin.
      This alloy is composed as follows:
           between 16% and 18% , of chromium;
           0.75% of nickel, maximum;
           0.12% of carbon, maximum;
           1% of silicon, maximum;
           1% of manganese, maximum;
           0.03% of sulfur, maximum;
           0.04% of phosphorus, maximum;
           and the remaining of iron.

 TOTAL WEIGHT: 5.19 g



Five Pesos

DIAMETER: 25.5 mm

 COMPOSITION: This coin will be bimetallic and composed by two alloys; one
 for its central part and other for its perimetrical ring as described below:

1. Central part of the coin.
      This alloy is composed as follows:
           92% of copper;
           6% of aluminum; and
           2% of nickel;

2. Perimetrical ring of the coin.
      This alloy is composed as follows:
           between 16% and 18% , of chromium;
           0.75% of nickel, maximum;
           0.12% of carbon, maximum;
           1% of silicon, maximum;
           1% of manganese, maximum;
           0.03% of sulfur, maximum;
           0.04% of phosphorus, maximum;
           and the remaining of iron.

 TOTAL WEIGHT: 7.07 g



Ten Pesos

DIAMETER: 28.0 mm

 COMPOSITION: This coin will be bimetallic and composed by two alloys; one
 for its central part and other for its perimetrical ring as described below:

      1. Central part of the coin. It could be composed by any of the following
      alloys:
           A) Sterling silver alloy.
                     Fineness: 0.925.
                     Alloyed metal: Copper
                     Content: 1/6 oz. of pure silver.

           B) German silver alloy.
                     Content: 65% of copper, 10% of nickel and 25% of zinc.

      2. Perimetrical ring of the coin.
      This alloy is composed as follows:
           between 16% and 18% , of chromium;
           0.75% of nickel, maximum;
           0.12% of carbon, maximum;
           1% of silicon, maximum;
           1% of manganese, maximum;
           0.03% of sulfur, maximum;
           0.04% of phosphorus, maximum;
           and the remaining of iron.
 

 TOTAL WEIGHT: The total weight will be the sum of central and perimetrical
 weights which will correspond:

      Type A) 11.183 g

      Type B) 10.329 g



Twenty Pesos

DIAMETER: 32.0 mm

 COMPOSITION: This coin will be bimetallic and composed by two alloys; one
 for its central part and other for its perimetrical ring as described below:

      1. Central part of the coin.
                Silver: Sterling, 0.925
                Alloyed metal: Copper
                Weight: 8.406 g
                Content: 1/4 oz. of pure silver.

      2. Perimetrical ring of the coin.
           between 16% and 18% , of chromium;
           0.75% of nickel, maximum;
           0.12% of carbon, maximum;
           1% of silicon, maximum;
           1% of manganese, maximum;
           0.03% of sulfur, maximum;
           0.04% of phosphorus, maximum;
           and the remaining of iron.

 TOTAL WEIGHT: 16.996 g



Fifty Pesos

DIAMETER: 39.0 mm

 COMPOSITION: This coin will be bimetallic and composed by two alloys; one
 for its central part and other for its perimetrical ring as described below:

      1. Central part of the coin.
                Silver: Sterling, 0.925
                Alloyed metal: Copper
                Weight: 16.812 g
                Content: 1/2 oz. of pure silver.

      2. Perimetrical ring of the coin.
           between 16% and 18% , of chromium;
           0.75% of nickel, maximum;
           0.12% of carbon, maximum;
           1% of silicon, maximum;
           1% of manganese, maximum;
           0.03% of sulfur, maximum;
           0.04% of phosphorus, maximum;
           and the remaining of iron.
 
 

 TOTAL WEIGHT: 33.967 g