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Aluminium 5251 vs 1050 – What’s the Difference

Aluminium 5251 vs 1050

Aluminium is a popular building material. Its unique properties make it ideal for creating strong and lightweight structures. Two of the most commonly used types of aluminium are 1050 and 5251. Both aluminium alloys have unique benefits, and here we will explore the differences and help you decide which is the best fit for your project.

Difference Between Aluminium 5251 and 1050


Aluminium 1050 comprises 99.5% aluminium and is a pure aluminium alloy. It is a good conductor of electricity and has excellent formability. It is often used in industries such as electrical and chemical.

Aluminium 5251 is an alloy that has magnesium added to it. This addition increases its strength and makes it more durable. It is commonly used to manufacture boats, trucks, and railways.

Strength and Durability

Aluminium 5251 is generally stronger than Aluminium 1050, which can make it a more durable option. While Aluminium 1050 is very soft, Aluminium 5251 is known for its toughness and ability to withstand harsher conditions.


Both Aluminium 1050 and Aluminium 5251 are easy to weld. However, Aluminium 1050 is often the better option for welding because it is more malleable and is a better conductor of electricity.

Corrosion Resistance

Both aluminium alloys have excellent corrosion resistance. However, Aluminium 5251 is better suited for marine environments due to its magnesium content. This makes it a popular choice for boats and other marine applications.


Aluminium 1050 is suited for industries such as electrical, chemical, and food packaging. It is often used in cookware manufacturing due to its excellent thermal conductivity.

Aluminium 5251 is popular for manufacturing boats, trucks, and railways. Its strength and durability make it ideal for applications that require more robust materials.


When deciding between Aluminium 5251 and Aluminium 1050, it is important to consider the specific needs of your project. If you need a tougher and more durable material, then Aluminium 5251 would be the better option. However, if you need a material that is easy to weld and has excellent thermal conductivity, Aluminium 1050 might be the better choice. Remember, each aluminium alloy has unique properties and advantages, so choose the best one for your application.

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