Improving mechanical properties with alloys
aluminium contains between 99 and 99.8% of aluminium. The purer it is, the better
the corrosion resistance. Pure aluminium, however, does not possess extremely
good mechanical properties, resulting in the application of aluminium alloys.
The best mechanical properties of aluminium are attained by adding copper,
nickel, magnesium, and silicon.
alloys applied for milling purposes (extrusion,
rolling, drawing, and forging) are alloyed with magnesium and copper. Magnesium
enhances the strength of aluminium (subject to proper processing) and corrosion
resistance as well as simultaneously reduces its castability, formability and
conductivity. Copper enhances its strength significantly and simultaneously
reduces its corrosion resistance as well. Most aluminium alloys applied for
casting purposes are based on added silicon.
regard to the metalworking industry, the quantity of manufactured light
aluminium alloys is only exceeded by the quantity of manufactured steel. During
recent years, global production of aluminium has been exceeding 30 million tonnes
per year, an amount that exceeds the total annual production of copper, tin,
- Series 5000 alloys are applied for decorative building elements subject
- Series 6000 alloys are easily reformed and strengthened, which is why
they are especially applied for automotive industry products.
- Series 7000 alloys are subject to appropriate strengthening and can be
thus applied in space technology.