How do I measure density or specific gravity of a die cast part?
The specific gravity of a complex shaped part like a die-casting is best measured by the Archimedes technique. This involves weighing the part in air then weighing it immersed in water, which is accomplished by suspending the part on a fine wire or thread in a beaker of water, taking care to get rid of any air bubbles. Specific Gravity = Weight in Air ΒΈ (Weight in Air – Weight in Water) (All weights are in grams) Conversion: 1 lb/cu. in. = 27.
