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Duralumin vs Metal – What’s the Difference

Duralumin vs Metal

Duralumin is a lightweight and strong type of aluminium alloy. Its development in the early 20th century revolutionised the aviation industry. It was used for manufacturing aeroplane frames, propellers, and other important parts, making the aircraft lighter and more agile. In recent years, duralumin has entered other industries, including automotive manufacturing and construction. In this blog post, we will compare duralumin with traditional metals and explore the advantages and disadvantages of each.

Difference Between Duralumin and Metal

The most significant advantage of duralumin over traditional metals is its strength-to-weight ratio. Duralumin is much stronger than aluminium and other metals while being lighter in weight. The high strength-to-weight ratio makes duralumin an ideal material for building aeroplanes and other industries where strength is critical. Traditional metals like iron, steel, and copper are heavier and denser, hindering their flexibility in different applications.

Another advantage of duralumin is its corrosion resistance. Duralumin has a thin aluminium oxide layer that forms when exposed to oxygen, protecting against corrosion. Traditional metals require additional coatings for corrosion resistance, adding more weight and cost to manufacturing. Duralumin offers superior resistance without the additional cost and weight.

The production of duralumin is an energy-intensive process, which adds to the cost of production. However, manufacturing does not require as much energy as traditional metals like iron, which makes it more environmentally friendly. The environmental impact of duralumin production is lower, making it a preferred choice in construction and automotive manufacturing.

Traditional metals have been used for thousands of years, and their versatility and strength are well documented. They can be melted and reformed, making them ideal for various applications. Metal is malleable, ductile and highly conductive, which cannot be achieved with duralumin. Metals such as iron and copper are more common, meaning they are easier to find and cheaper to buy than duralumin.


Duralumin and traditional metals each have their advantages and disadvantages. Duralumin has a high strength-to-weight ratio, excellent corrosion resistance, and a lower environmental impact. On the other hand, traditional metals are more versatile, ductile and comparatively more comfortable to source. Choosing between the two will depend on the specific requirements of the application at hand. Nonetheless, duralumin has found its way into several critical industries, and its usage is only growing. Its success can be attributed to its unique properties, revolutionising construction, aviation and automotive manufacturing.

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