ThePipingMart Blog Metals 2618 Aluminium vs 4032 – What’s the Difference

2618 Aluminium vs 4032 – What’s the Difference

2618 Aluminium vs 4032

Aluminum is one of the most varying metals available in the market. It is known for its outstanding strength and durability and is also resistant to rust or corrosion. Engineers and manufacturers have developed the metal alloys of aluminium to create even stronger and more robust alternatives. The 2618 and 4032 aluminium alloys are two such alloys, which possess remarkable properties that make them a popular choice in various applications.

This blog post will examine the differences between 2618 and 4032 aluminium alloys, discussing their characteristics, applications, and uses. So, let’s dive in!

What is 2618 Aluminum?

2618 aluminium is an alloy of aluminium, copper, magnesium, and silicon, usually preferred for forging pistons and rotor heads of high-performance engines. This aluminium alloy has excellent mechanical properties, exceptional fatigue resistance, and high tensile strength. Also, its high strength-to-weight ratio makes it one of the most preferred alloys for aircraft and aerospace applications. Moreover, its unique properties make it suitable for high-temperature applications, like producing high-performance exhaust systems.

What is 4032 Aluminum?

4032 Aluminum is an aluminium alloy containing silicon and magnesium, with excellent fatigue and thermal stability properties, making it ideal for high-performance applications. It is widely used in the production of racing parts, special pistons, and cylinder liners, as well as in compressors, pumps, and pumps rotors. With its high strength-to-weight ratio and excellent wear resistance, 4032 Aluminum is an ideal choice for critical and high-stress components.

Difference Between 2618 Aluminium and 4032

Chemical Composition

The chemical composition of 2618 and 4032 aluminium alloys differ slightly in their content levels. The 4032 Aluminum has a higher silicon concentration than the 2618 Aluminum, which explains its enhanced thermal stability properties. The 2618 aluminium, on the other hand, has a higher copper concentration, which leads to its excellent mechanical and fatigue properties.


2618 and 4032 aluminium alloys are widely used in high-performance applications that need excellent strength, resistance to wear, and high-temperature operations. 2618 aluminium is an ideal metal alloy for high-performing engines, such as aircraft and racing cars, aerospace applications, and industrial processes. On the other hand, 4032 aluminium is primarily used to produce special pistons and cylinder liners, brake system components, and high-performance parts that require high temperature and wear resistance properties.


In conclusion, 2618 Aluminum and 4032 Aluminum have unique properties, making them suitable for specific applications in the industrial and high-performance sectors. If you are looking for extreme strength, fatigue resistance, and high-temperature operations, 2618 aluminium might be the best option. However, if your application requires high-stress and wear-resistance properties, 4032 aluminium is an excellent alternative. Understanding the differences between these two alloys can help you make an informed decision when selecting the right material for your specific application.

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