Average density of metal cylinder. According to relevant data, the most commonly used metals in life are: gold, silver, copper, iron and aluminum. The following are the common metal densities: gold: 19.32g/cm, silver: 10.5g/cm, copper: 8.96g/cm, iron: 7.85g/cm, aluminum: 2.7g/cm, metal weight calculation: metal volume multiplied by metal density equals metal weight. Example: There is a galvanized iron plate with a length of 1000mm, a width of 600mm and a thickness of 0.6 mm The calculated weight is equal to 1000 times 600 times 0.6 times 7.85 divided by 100000 equals 2.826kg. Note: 100000 is the volume conversion.