ThePipingMart Blog Grades Aluminum Alloy 5654 – Composition, Properties, and Uses

Aluminum Alloy 5654 – Composition, Properties, and Uses

Aluminium 5654

Aluminum 5654 is an alloy that belongs to the 5xxx series of aluminium alloys. It is often used in applications that require high strength and excellent corrosion resistance. This blog post will explore the composition, physical and mechanical properties, uses, and heat treatment of aluminium 5654 and its hardness. By the end of this post, you will better understand this versatile alloy and its many applications.

Aluminium 5654 Composition

Aluminum 5654 is an aluminium-magnesium alloy that contains approximately 2.5% magnesium. It also has small amounts of chromium, nickel, and copper. The addition of magnesium and other elements enhances the strength of the alloy, making it ideal for use in various applications.

Si + Fe Mn Cu Mg Zn Al Cr Ti Be Other each Other total
0.45 0.01 0.05 3.1-3.9 0.20 REM 0.15-0.35 0.05-0.15 0.0003 0.05 0.15

Aluminium 5654 Physical Properties

Aluminum 5654 has a density of approximately 2.7 g/mL. It has a melting point of 607°C and a boiling point of around 2467°C. The alloy also has a low thermal conductivity, making it an excellent choice for heat shield applications.

Aluminium 5654 Mechanical Properties

Aluminum 5654 has excellent mechanical properties, making it a popular choice for many applications. It has a tensile strength of around 340 MPa and a yield strength of approximately 280 MPa. The alloy also has excellent flexibility and good fracture toughness.

Aluminum 5654 Uses

Aluminum 5654 is used in various applications, including aerospace, marine, and automotive industries. It is commonly used in constructing aircraft wings, fuselage frames, and fuel tanks due to its excellent strength-to-weight ratio and corrosion resistance. It is also used in the construction of boats and ships, as well as automotive parts such as suspension components and wheels.

Aluminium 5654 Heat Treatment

Aluminium 5654 can be heat-treated to improve its properties. It can be solution-treated at 510°C for 2-4 hours, followed by water quenching to enhance strength. The alloy can also age at around 160°C for 10-12 hours to improve its stress corrosion cracking resistance.

Aluminium 5654 Hardness

The hardness of aluminium 5654 varies depending on its temper. The alloy can be in various tempers, including O, H32, H34, and T6. The hardness ranges from around 40-70 on the Brinell hardness scale, depending on the temper.


In conclusion, aluminium 5654 is an excellent choice for high-strength and corrosion-resistance applications. Its composition, physical and mechanical properties, uses, and heat treatment makes it a versatile alloy widely used in various industries. Understanding its properties and potential applications can help engineers and manufacturers determine when to use aluminium 5654.

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