Zamak 2 Ingot (Aluminum 4%, Copper 3%, Zinc 93%) - Kirksite

Sold by the Ingot

Zamak 2 comes in an ingot that weighs approximately 4lbs (3.9lbs - 4.1lbs) and measures 1" x 2" x 8.5" with tapered sides. This alloy has the same composition as Zamak 3 with the addition of 3% copper in order to increase strength by 20%, which also increases the price. Zamak 2 has the greatest strength out of all the Zamak alloys. Over time it retains its strength and hardness better than the other alloys; however, it becomes more brittle, shrinks, and less elastic.

Within the Zamak family of zinc die casting alloys, Zamak 2 has the highest strength and hardness due to its higher copper content (3%).  Zamak 2 is also known as Kirksite when making tooling for the stamping or plastic injection mold industries. 

Melts about 785F