Aluminium

In nature, aluminum always appears combined with other elements, such as iron, oxygen and silicon. The high affinity of aluminum for oxygen leads to the formation of a chemical compound called alumina, Al2O3. In turn, alumina appears in the Earth's crust incorporated in an ore called bauxite, which contains a high content of alumina, between 35 and 45%. Bauxite is mainly found in tropical and subtropical countries in Africa, Asia, South America and Australia, although there are also some mines in Europe.

 An exceptional combination of properties makes aluminum one of the most versatile materials used in engineering, architecture and industry in general.

Aluminum has a low mechanical strength, so it should not be used directly in applications where deformation and fracture resistance are essential. Thus, some elements are added to aluminum that improve its mechanical strength, without detriment to other properties, giving rise to different alloys according to the specific purpose intended.

The development of aluminum alloys, associated with technological advances in the extrusion process, allow the production of a great diversity of profiles, which cover practically all areas of application in the field of Industry and Architecture.

• Low density: 2.7 g / cm3;
• Good resistance to atmospheric corrosion (due to the formation of a self-protective alumina film);
• Elasticity Module: 70,000 MPa
• Moderate melting point, which facilitates the production of alloys: 660ºC;
• High electrical and thermal conductivity;
• Good reflective power;
• Non toxic;
• Infinitely recyclable without ever losing its initial properties.

The excellent suitability of surface treatments, anodizing and lacquering, to the alloys we use, increases the range of possibilities for end applications.

Alloy EN AW-6060 [AI MgSi]: Due to its versatility, it is one of the most used alloys of this group, mainly in applications where moderate mechanical properties are required, at the same time with a good response to anodizing. It has good corrosion resistance and good weldability characteristics. It is used in construction profiles, mainly in window frames, in the automotive industry and industry in general.

Alloy EN AW-6063 [AI Mg0.7Si]: It is quite similar to Alloy 6060, but with superior mechanical properties. Due to its versatility, this alloy is used in diversified applications in the automotive and transport industry, and in industry in general.

Alloy EN AW-6061 [AI Mg1SiCu]: It is considered a medium strength alloy and is mainly used in applications that combine mechanical strength with good corrosion resistance. Typical applications of this alloy include components for the automotive and transport industry, industry in general, machine components, among others.

Alloy EN AW-6082 [AI SiMgMn]: Characterized by the addition of manganese to its chemical composition, it is considered the alloy with the highest mechanical properties in this series. It is also considered an ideal alloy for structural applications, with good corrosion resistance and good toughness. Due to the combination of these factors, the typical applications of this alloy are, both structural in construction, in the transport industry and in the general industry, as well as in machined parts for the automotive industry.

It is also possible to produce other alloys and special metallurgical states, according to the customer's specification, and when requested by the customer. Our profiles comply with the EN 755 standard or, if requested, the EN 12020 standard for precision extruded profiles.