General Cast plaques are manufactured using sand molds in our state-of-the-art foundry
from raw ingot alloyed in the following materials:
Cast Bronze Equivalent to Copper Development
Association Alloy C92200;
88% copper, 6% tin, 4% zinc, 2% lead.
Cast Aluminum Cast from Aluminum Association
Association Alloy Designation C443.2.
Helpful Hints
Bronze
castings are the material of choice for interior as well as exterior
applications. Although the finish of bronze will naturally patina over time,
the material itself will not deteriorate. Objects made from bronze have been
found submerged in seawater for over 3000 years still in excellent condition.
The
weight of a bronze plaque may be roughly estimated by calculating the plaque's
volume in inches (height x width x depth) x .31. For most smaller plaques
(under 36" x 30") allow .25" as the approximate depth. Use .375" for plaques
over 36" x 30".
Example:For a 36" x 24" plaque calculate
36" x 24" x .25" = 216 cu. inches x .31 = 66.96. The plaque's estimated weight
would be 67 lbs.
An
aluminum plaque is approximately 1/3rd the weight of a comparable sized bronze
plaque. In the above example, simply divide the answer by 3. A 36" x 24"
aluminum plaque weighs approximately 23 lbs.
