Density is an inherent property of matter, which is defined as mass per unit volume (ρ = m/V). For a given material such as aluminum, its density is a specific value that characterizes the material itself. The density of aluminum is about 2.70 g/cm³ or 2700 kg/m³. This value is consistent for any form of aluminum, and the density of aluminum does not change due to different thicknesses.

The density of aluminum sheet is generally 2.7 g/cm³. This means that each cubic centimeter of aluminum sheet weighs 2.7 grams. Aluminum sheets are widely used in various engineering projects due to their relatively low density but high strength and toughness. As for the density of aluminum foil, it is also processed by metal aluminum or aluminum alloy through rolling equipment. The density of aluminum foil is similar to that of pure aluminum, about 2.7g/cm³. However, the density of aluminum foil may vary slightly due to its specific processing method and alloy composition.

The density comparison between aluminum sheet and aluminum foil can be explained in detail by referring to the following information:

First, regarding the density of aluminum sheet, according to the information provided by multiple articles, the density of aluminum sheet is generally 2.7 g/cm³. This means that each cubic centimeter of aluminum sheet weighs 2.7 grams. Aluminum sheet has a wide range of applications in various projects due to its relatively low density but high strength and toughness.

Next, regarding the density of aluminum foil, it is also processed by metal aluminum or aluminum alloy through rolling equipment. According to the information in reference articles 2 and 3, the density of aluminum foil is similar to that of pure aluminum, which is about 2.7g/cm³. However, it should be noted that the density of aluminum foil may vary slightly depending on its specific processing method and alloy composition.

Aluminum foil and aluminum sheet differ in the form of aluminum.
Aluminum sheet: Aluminum sheet is a flat, thin piece of aluminum metal. The thickness of aluminum sheet may vary, usually ranging from 0.2 mm to several millimeters.
Aluminum Foil: Aluminum foil is much thinner than aluminum sheet, usually less than 0.2 mm thick and usually around 0.016 mm or thinner.
Thickness or form (aluminum sheet vs. aluminum foil) does not affect density. The mass per unit volume remains the same regardless of how thick or thin the material is.
Aluminum sheet has more mass per given area than a thinner aluminum foil, but both have the same density value when considering their respective densities. Although they have the same density, aluminum sheet and aluminum foil have different applications. Aluminum sheet is used where structural strength and rigidity are required, while aluminum foil is used for packaging, insulation, and other applications that require flexibility and thinness.
So, although aluminum sheet and aluminum foil have different thicknesses, they have the same density.