Zamak 3 Ingot (Aluminum 4%, Zinc 96%)

Sold by the Ingot.

Each ingot weighs approximately 4lbs (3.9lbs-4.1lbs) and measures 1" x 2" x 8.5" with tapered sides. Zamak 3 is the de facto standard for the zamak series of zinc alloys; all other zinc alloys are compared to this alloy. Zamak 3 has the base composition for the zamak alloys (96% zinc, 4% aluminum). It has excellent castability and long term dimensional stability. It is the most common zinc die casting alloy in North America. Usually it's the first choice when considering an alloy for zinc die casting due to its excellent combination of mechanical and physical properties, and superb casting and finishing ability. More than 70% of all North American zinc die castings are made from Zamak 3.

Zamak 3 is a mixture of alloys with a base metal of zinc & alloy elements of aluminum, magnesium & copper.  This alloy is excellent for those who need a combination of strength, ductility, plating & finishing characteristics. 

The melting temperature for Zamak 3 is approximately 725 degrees.

Physical Properties

Density (lb/in3)                      0.240

Melting Point (degree F)         728

Electrical Conductivity            27

(% IACS)

Coefficient of Thermal            15.2

Expansion (68F-212F, uin/in/F)

Chemical Composition

Aluminum - 3.9-4.3%

Copper - .10% max.

Magnesium - .03-.04%

Silicon - .03% max.

Iron - .01% max.

Lead - .003% max.

Cadmium - .002% max.

Tin - .001% max.

Zinc - balance

Meets Spec. ASTM AG40A - ZAMAK No. 7 8962 has same properties