ThePipingMart Blog Grades Aluminium Alloy 5024 – Composition, Properties and Uses

Aluminium Alloy 5024 – Composition, Properties and Uses

Aluminium 5024

Aluminium 5024 is an alloy that is used in many engineering and building applications due to its properties. It has a high strength-to-weight ratio, excellent machinability, good weldability, and good corrosion resistance. It also has great heat resistance with excellent mechanical properties, making it a versatile material for many applications. In this blog post, we will discuss the composition of Aluminium 5024, its mechanical and physical properties, uses, corrosion resistance, heat resistance, heat treatment, machining and welding capabilities.

Aluminium 5024 Composition

AL 5024 is an aluminum-magnesium alloy containing 3.2–3.8% magnesium and 0.6–1% manganese by weight. It also contains other elements such as silicon (0.7%), iron (0.4–1%), chromium (0.2%) and zinc (0.2%). Depending on the application requirements, it is available in two forms – wrought or cast.

Component Elements Properties Metric English Comments
Aluminum, Al 92.95 – 95.95 %

92.95 – 95.95 %

As Balance
Chromium, Cr <= 0.10 %

<= 0.10 %

Copper, Cu <= 0.20 %

<= 0.20 %

Iron, Fe <= 0.40 %

<= 0.40 %

Magnesium, Mg 3.9 – 5.1 %

3.9 – 5.1 %

Manganese, Mn <= 0.20 %

<= 0.20 %

Other, each <= 0.05 %

<= 0.05 %

Other, total <= 0.15 %

<= 0.15 %

Scandium, Sc 0.10 – 0.40 %

0.10 – 0.40 %

Silicon, Si <= 0.25 %

<= 0.25 %

Titanium, Ti <= 0.20 %

<= 0.20 %

Zinc, Zn <= 0.25 %

<= 0.25 %

Zirconium, Zr 0.05 – 0.20 %

0.05 – 0.20 %

Aluminium 5024 Mechanical Properties

Grade 5024 has a tensile strength of 260MPa and a yield strength of 180MPa when annealed at room temperature (RT). The hardness ranges from 70HB to 75HB while the elongation ranges from 8% to 10%. The density of Aluminium 5024 is 2.72g/cm³ while the melting point is around 600°C – 650°C depending on the form taken (wrought or cast).

Aluminium 5024 Physical Properties

Physical Properties Metric English Comments
Density 2.65 g/cc

0.0957 lb/in³

Aluminium 5024 Uses

Alloy 5024 is used extensively in aerospace engineering due to its lightweight yet strong properties, making it ideal for aircraft components such as fuselage frames, wings, and bulkheads. Other common uses include machine parts for industries like automotive manufacturing or food processing and marine components like propeller shafts or masts for sailboats due to their excellent corrosion resistance in saltwater environments.

Corrosion Resistance

Aluminum alloy 5024 has excellent corrosion resistance compared to other aluminum alloys due to its high content of magnesium which helps prevent oxidation even when exposed to long periods in moist environments such as salty air or seawater spray. This makes it ideal for outdoor applications requiring regular moisture exposure without sacrificing strength or durability over time.

Heat Resistance

Aluminum alloy50 24 has good heat-resistant properties, allowing it to maintain its shape even when exposed to high temperatures up to 350°C without suffering any damage.

Heat Treatment

Aluminum alloy50 24 can be heat treated using different processes including solution treating, precipitation hardening, aging treatment, stress relieving, quenching, tempering, etc., depending on the desired results.


Aluminum alloy50 24 is relatively easy to machine compared to other aluminum alloys because of its moderate hardness and strength, making it easier for tools to penetrate the material .


Aluminum alloy50 24 can be welded using either TIG or MIG welding processes with no additional filler material needed because it has sufficient fusion properties with most aluminum alloys . However, caution should be taken when welding thin sections as cracking can occur due to over heat in or rapid cooling .


In conclusion , aluminum alloy 50 24 is a versatile material with excellent mechanical and physical properties that makeit suitablefor use in many applications such as aero space engineering, automotive manufacturing and Marine components. It also has good corrosion and heat resistance making it ideal for outdoor use in moist environments while maintaining its strength over time.

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