Zinc Alloy: ZA-27
Alloy ZA-27 is an under-appreciated metal for foundry use. This metal is 1.5 to
3 times stronger than cast aluminum, and can have the tensile strength of grey
or malleable cast iron! Its casting temperature is in the range of 950 Deg F to
1,100 Deg F as compared to aluminum at 1,450 Deg F. The machinability of ZA-27 is
very good to excellent.
Zinc alloys are sometimes known as "Pot Metal". It is a mixture of
zinc and aluminum. Zamack alloys are often used in die casting as well as sand
casting. Thin, complex die cast sections are possible with this alloy.
Unfortunately some designs have pushed the limits of these thin sections and the
resulting failures have given zinc-aluminum a bad name. Don't be misled; ZA-27
is an excellent casting material!
Hereâ€™s a link to the material properties: http://matweb.com/search/DataSheet.aspx?MatGUID=5c017f3a462c44fa8a5eb71b2e304d96&ckck=1
A single ingot measures about 7" x 2-3/4" x 1-1/2". Multiple ingots are packaged together to get to the listed weight.
The total weight for this item is 8 Lbs 15 Oz.-- ONLY ONE INGOT AVAILABLE AT THIS WEIGHT --