aluminum
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aluminum
A lightweight, silvery-white metal that does not rust. It is used for many products such as cans, window frames, or vehicle parts.
Diese Trinkflasche ist aus Aluminium und daher sehr leicht.
This water bottle is made of aluminum and is therefore very light.
The ending '-ium' is typical for many chemical elements and metals in German. Other examples are 'Kalzium' (calcium), 'Magnesium' (magnesium), or 'Titan' (titanium).
Aluminium ist ein chemisches Element mit dem Symbol Al.
Aluminum is a chemical element with the symbol Al.
When describing what something is made of, German uses the preposition 'aus' (made of/from). When talking about the material in general, 'Aluminium' (aluminum) often appears without an article.
Der moderne Fensterrahmen ist aus Aluminium.
The modern window frame is made of aluminum.
Common adjectives that describe 'Aluminium' (aluminum) refer to its properties. Typical phrases are 'leichtes Aluminium' (lightweight aluminum), 'reines Aluminium' (pure aluminum), or 'gebürstetes Aluminium' (brushed aluminum).
Für den Flugzeugbau wird besonders leichtes Aluminium benötigt.
Especially lightweight aluminum is needed for aircraft construction.
steel
'der Stahl' and 'das Aluminium' are both important metals or metal materials and are often used in technology, construction, and everyday life. They can be confused because both can look silvery and are used for sturdy parts. However, 'Stahl' is a very strong alloy of iron and carbon and is especially suitable when something needs to be very strong and able to bear heavy loads. 'Aluminium' is much lighter and does not rust, so it is often used for cans, window frames, or lightweight vehicle parts. In practical terms: for great strength, you are more likely to think of 'Stahl'; for low weight, more of 'Aluminium'.
Für die Reise nehme ich einen Koffer aus Aluminium, weil er leicht und stabil ist.
For the trip, I am taking a suitcase made of aluminum because it is light and sturdy.
Die neue Brücke besteht aus Stahl, weil sie sehr schwere Lasten tragen muss.
The new bridge is made of steel because it has to carry very heavy loads.