ThePipingMart Blog Grades Aluminium 5254 Alloy (UNS A95254) – Composition, Properties and Uses

Aluminium 5254 Alloy (UNS A95254) – Composition, Properties and Uses

Aluminium 5254

Aluminium 5254 is a high-grade aluminum alloy used for many types of applications. UNS A95254 has excellent corrosion resistance, heat resistance, machinability, and weldability properties – making it one of the most versatile aluminum alloys on the market today. In this blog post, we’ll take a closer look at why 5254 Alloy is such an important alloy and discuss its uses, corrosion resistance, heat resistance, heat treatment, and machining and welding processes.

5254 Alloy Composition

Element Content (%)
Aluminium / Aluminum, Al 96.2
Magnesium, Mg 3.5
Chromium, Cr 0.25

5254 Alloy Physical Properties

Properties Metric Imperial
Density 2.6-2.8 g/cm3 0.0939-0.1011 lb/in3

5254 Alloy Mechanical Properties

Properties Metric Imperial
Elastic modulus 70-80 GPa 10152-11603 ksi
Poisson’s ratio 0.33 0.33

5254 Alloy Thermal Properties

Properties Conditions
T (ºC) Treatment
Thermal conductivity 127 (W/mK) 25 All

5254 Alloy Equivalent

Equivalent material to Aluminium / Aluminum 5254 alloy include ASTM B209 alloy.

5254 Alloy Uses

Aluminum 5254 is used in many different industries due to its strength and versatility. It is commonly found in aircraft components, automotive parts, electronic components, construction materials (including window frames), machinery parts and many other applications where lightweight but durable materials are required.

Corrosion Resistance

Aluminum 5254 has a very high corrosion resistance compared to other aluminum alloys. This means that it can withstand exposure to harsh weather conditions such as wind, rain and snow without corroding or rusting easily. It also makes it ideal for use in marine environments since seawater won’t cause any damage over time.

Heat Resistance

Aluminum 5254 has excellent heat resistance, making it perfect for high-temperature applications such as engine components or exhaust systems. The alloy can withstand temperatures up to 350°C (662°F) before deforming or melting, which allows it to be used in some of the most extreme conditions imaginable.

Heat Treatment

Aluminium 5254 can be heat treated in order to increase its strength further by using specific heating processes such as annealing or solution treating. These treatments allow the alloy to be strengthened without compromising its fantastic corrosion or heat-resistant qualities, which makes it perfect for use in harsh environments where durability is essential, but weight needs to remain low as well.


Aluminum 5254 is relatively easy to machine compared to other aluminium alloys due to its softness and malleability at room temperature, which makes it ideal for cutting into complex shapes or intricate designs with minimal effort needed from the machinist’s part – saving both time and money during production runs.


Aluminum 5255 can be easily welded using various techniques, including Gas Tungsten Arc Welding (GTAW), Shielded Metal Arc Welding (SMAW) and Gas Metal Arc Welding (GMAW). The alloy also responds well when being joined with other metals, such as copper or steel, which allows engineers more flexibility when designing products that need multiple materials joining together seamlessly during production runs.


Aluminium 5254 is an incredibly versatile alloy with excellent corrosion resistance, heat resistance, machinability & weldability properties – making it perfect for use in numerous industries across the world where lightweight but durable materials are needed for long-lasting performance even under extreme conditions. By understanding how aluminium 5254 can be heated, treated & welded correctly, you ensure that your products maintain their quality over time – making them stand out from the competition & giving you an edge in today’s market!

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