Bobina di alluminio is a processed product of aluminum metal, che è alluminio puro combinato con diversi elementi leganti per modificarne le proprietà meccaniche, resistenza alla corrosione, formabilità, e lavorabilità. Diventa una bobina in lega di alluminio con buone proprietà metalliche. Diversi elementi di lega vengono aggiunti al metallo alluminio, e le bobine di alluminio ottenute hanno caratteristiche diverse. In order to distinguish them, these aluminum coils are classified.

From the forging method, it can be divided into forged aluminum and cast aluminum. Wrought aluminum is produced by smelting an aluminum ingot with a specific amount of alloying metal to produce the desired grade of composition. The smelted aluminum alloy is cast, rolled, forged, extruded, and other mechanical processing processes. In order to distinguish the grades of wrought aluminum, a four-digit code is used to identify each wrought aluminum grade.
The ones we know are: 1-8 bobine di alluminio di serie
1000 serie in lega di alluminio, 2000 serie in lega di alluminio, 3000 serie in lega di alluminio, 4000 serie in lega di alluminio

5000 serie in lega di alluminio, 6000 serie in lega di alluminio, 7000 serie in lega di alluminio, 8000 serie in lega di alluminio

The aluminum alloy aluminum coils of each of these series are divided into more detailed divisions, ad esempio 1100 bobine di alluminio, 5754 bobine di alluminio, eccetera. where the first number represents the main alloying element added to pure aluminum. The main alloying elements greatly affect the properties of the grades in the series. The second number refers to the modification of the specific alloy. Modifications are registered with IADS, which requires specific documents. If the specified number is zero, the alloy is pristine or unmodified. The third and fourth digits are arbitrary numbers assigned to specific alloys in the series. Per il 1000 serie, these numbers indicate the purity of the alloy.

Per esempio, Aluminium Coil 1060 is made of almost pure aluminum and contains 99.60% alluminio.
The following are alloys contained in different series of aluminum coils
1XXX aluminum coil 99.00% alluminio (minimum)
2XXX aluminum coil rame
3XXX aluminum coil manganese
4XXX aluminum coil silicio
5XXX aluminum coil magnesio
6XXX aluminum coil magnesium and silicon
7XXX aluminum coil zinc
8XXX aluminum coil Altri elementi