Light metals 2017-12-07T11:53:24+00:00

Light metals

Metals and alloys with densities below 4.5 g/cm³ (e.g. aluminium, magnesium and titanium) are generally referred to as light metals.



is used as an alloying metal for materials employed in the medical equipment, aerospace and other industries. It is corrosion resistant and highly rigid.


is a very light, silvery-white material which is highly inflammable. It is used as an alloying agent for metal castings and housings (diecasting and automotive industries).


is a silver coloured, lustrous light metal which is completely recyclable.

Aluminium cans

Aluminium cans come from the drinks industry. Some cans – mainly imported ones – have steel lids or bases. (Switzerland: the official collection organisation for drink cans is IGORA).

Aluminium dross

Aluminium dross is a by-product of aluminium casting. The dross floats on the surface of the molten metal, together with impurities.

Cast aluminium

Cast aluminium is made hard and brittle by alloying additives.

Aluminium swarf

Aluminium swarf is produced when aluminium parts are turned or milled.

Aluminium overhead power lines

Aluminium overhead power lines can be all aluminium, or reinforced with steel or stainless steel wire strands.

Plain aluminium profiles

Plain aluminium profiles are production waste – often from the windowindustry. Alloying with magnesium and silicon makes them tough and torsionally stiff.

Old/coloured and/or anodised aluminium profile

Old/coloured and/or anodised aluminium profiles are used products that often arise when windows are replaced.

New aluminium

New aluminium refers to plain sheet production waste. Some of this material is still covered with protective film.

Old aluminium

Old aluminium refers to used products such as vacuum cleaner tubes and milk churns.

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