1. Resistance to corrosion
Aluminum profiles have a density of only 2.7g/cm3, about 1/3 that of steel, copper, or brass (7.83g/ cm3, 8.93g/ cm3, respectively). Aluminum exhibits excellent corrosion resistance under most environmental conditions, including in air, water (or brine), petrochemistry, and many chemical systems.
2. Specific Conductance
Aluminum profiles are often chosen for their excellent conductivity. Aluminum is nearly twice as conductive as copper on an equal weight basis.
3. Thermal conductivity rate
The thermal conductivity of aluminum alloy is about 50-60% that of copper, which is beneficial for the manufacture of heat exchangers, evaporators, heating appliances, cooking utensils, as well as automobile cylinder heads and radiators.
Aluminum profiles are non-ferromagnetic, an important property for the electrical and electronics industries. Aluminum profiles are incombustible, which is important for applications involving loading and unloading or contact with flammable and explosive materials.
The machinability of aluminum profiles is excellent. Machining characteristics vary considerably in the various deformed and cast aluminum alloys and in the various states in which these alloys are produced, requiring special machine tools or techniques.