Aluminum Properties

Some of the more attractive aluminum properties include good appearance, ease of fabrication, good corrosion resistance, low density, high strength-to-weight ratio and high fracture toughness.

Because of these properties, aluminum is one of the most economical and structurally effective materials used for commercial and military equipment applications.

When exposed to air, a layer of aluminum oxide forms almost instantaneously on the surface of the aluminum. This layer has excellent resistance to corrosion. It is fairly resistant to most acids but less resistant to alkalis.

Pure aluminum doesn’t have a high tensile strength. However, the addition of alloying elements like manganese, silicon, copper and magnesium can increase the strength properties of aluminum and produce an alloy with properties tailored to particular applications.

Thermal conductivity of aluminum is very good, about three times greater than that of steel, a property that makes aluminum an important material for both cooling and heating applications such as heat-exchangers. Combined with it being non-toxic, this aluminum property is used extensively in cooking utensils and kitchenware.

Aluminum has a density around one-third that of steel or copper, making it one of the lightest commercially available metals.

Along with copper, aluminum has an electrical conductivity high enough for use as an electrical conductor.



The Total Materia database brings global metal properties together into one integrated and searchable database. Quick and easy access to the mechanical properties, chemical composition, cross-reference tables, and more provide users with an unprecedented wealth of information. Click the buttons below to learn more from the Guided Tour or to test drive the Total Materia database.

Total Materia Search by Aluminum Properties

You can quickly and easily search over a half million aluminum properties records by designation, countries/standards, type, standard number, chemical composition, mechanical properties, other properties or any combination of these criteria. For example, let’s look for an aluminum alloy, which needs to have Si > 20% for castability, Cu, Mg and Ni less than 2%, and tensile stress over 100 MPa.

Click Advanced Search from the main window. Next, choose Aluminum from the Group of Materials list, and enter requested aluminum properties and alloying elements.

Aluminum properties: Example of combined aluminum properties search by composition and mechanical properties

The search results screen appears. You can then click on an aluminum alloy from the list to review its properties. In this case, the last position on the list is selected – British aluminum alloy LM 29.

Aluminum properties: Result list of the aluminum properties search

After clicking the material from the resulting list, a list of subgroups appears. In Total Materia, the term “subgroups” refers to specifications that define properties of the aluminum grade; in this case there is only one specification, BS 1490. Note that this aluminum specification is obsolete – Total Materia even comprises aluminum properties from historical specifications.

Aluminum properties: Specification that defines properties of the British aluminum alloy LM 29

Aluminum properties within the Total Materia Database include composition, cross-reference tables, mechanical properties, physical properties, and more. Click on the examples below to enlarge them.

Aluminum properties: Chemical composition of the aluminum grade LM 29
Aluminum properties: Cross-reference table of the aluminum grade LM 29
Aluminum properties: Mechanical properties of the aluminum grade LM 29