The materials used in the aircraft industry besides the light specific weight must respond to some specific requirements for the creation of new materials and also the improvement of the material properties used in the present. In modern aircraft construction, there are many casting pieces, such as props, fittings, flanges, handles, crossing tight bodies, etc.
Aluminum alloys, the ones which are light and have good physical and mechanical properties, are part of common materials used in producing some components found in aircraft technology. The application of different artificial ageing heat treatments leads to an improvement of the mechanical properties.