Aluminium
Aluminium does not occur naturally in its metallic form. However, when all its various forms of compositions are taken in account, it does comprise a substantial proportion of the Earth’s crust. Its percentage is of the order of 8 %, and when including the various natural compositions, is by far the most abundant metal by some margin. Only the non-metallic elements of oxygen and silicon are more abundant.
Aluminium as a metal has been known for only the last 175 years. This is mainly due to its affinity to bind with oxygen and the difficulty in separating it from the resulting aluminium oxide. Bauxite this the most important ore source.
The extraction from Bauxite is performed in two stages. Initially the ore is processed and washed of all impurities to yield pure aluminium oxide. Finally the metal is recovered by the electrolysis of this alumina. Today aluminium and its alloys count amongst the most important materials in the production of profile, tubes and sheets. It has a low melt temperature and shows excellent electrical and thermal conductivity.

We produce aluminium tubes with the material designations of Al99.5 and AlMgSi0.5 in coils and in straight lengths. These tubes are finished in accordance with
DIN 1725/1746/1795
DIN EN 573 & 754
and also to special customer requirements.

Designation	Material No. DIN	Material No. EN	Characteristics and uses
AL 99,5	3.0255	EN-AW1050A	A soft and light metal: e xcellent for powder coating and good cold working properties. Housings for electronic components; rivet tubes.
AlMgSi 0,5	3.3206	EN-AW6060	For components with average mechanical requirements; g ood weathering resistance. High corrosion resistance. Rivet tubes.

Our current standard production sizes are as follows :

Outside diameter	Wall thickness
	0,10	0,15	0,20	0,25	0,30	0,40	0,50	0,75	1,00
1
2			X	X	X	X	X
3				X	X	X	X	X	X
4				X	X	X	X	X	X
5					X	X	X	X	X
6						X	X	X	X
7						X	X	X	X
8							X	X	X
9							X	X	X
10								X	X
11								X	X
12								X	X
13									X
14									X
15									X