ThePipingMart Blog Grades 5050 Aluminium (UNS A95050) – Composition, Properties and Uses

5050 Aluminium (UNS A95050) – Composition, Properties and Uses

Aluminium 5050

UNS A95050 is a versatile alloy that boasts many physical and mechanical properties. It is commonly used in manufacturing aircraft, marine parts, and automotive components. This article will provide an overview of the composition, mechanical properties, physical properties, uses corrosion resistance, heat resistance, heat treatment, machining and welding processes associated with Aluminium 5050.

Aluminium 5050 Composition

Aluminum 5050 Alloy (UNS A95050) consists of aluminum as its major alloying element. The alloy also contains small amounts of silicon (0.4-0.8%), copper (0.15-0.35%), magnesium (0.8-1.2%), zinc (0.25%) and titanium (0.15%).

Element Content (%)
Aluminium / Aluminum , Al 98.6
Magnesium, Mg 1.4

Aluminium 5050 Mechanical Properties

5050 Aluminium has good strength properties when compared to other aluminum alloys; its tensile strength ranges from 310 MPa to 540 MPa while its yield strength ranges from 270 MPa to 500 MPa depending on temper condition and age hardening process employed in the making of the alloy . The elongation property for this alloy is about 15%. This means it can be stretched or pulled up to 15% without breaking apart or suffering permanent damage.

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

Aluminium 5050 Physical Properties

The density of Aluminium 5050 is 2.71 g/cm3 , its melting point is 600°C and its electrical conductivity ranges from 24–33% IACS . Its thermal conductivity ranges from 170–200 W/mK . The modulus elasticity for this alloy is 68 GPa while its shear modulus is 27 GPa . It also has a Poisson’s ratio of 0.33 at 20°C.’

Properties Metric Imperial
Density 2.69 g/cm3 0.0971 lb/in³

Aluminium 5050 Thermal Properties

Properties Conditions
T (ºC) Treatment
Thermal conductivity 191 W/mK 25 H38
Thermal expansion 23.6 x 10-6/°C 20-100

Aluminium 5050 Equivalent

  • ASTM B209
  • ASTM B210
  • ASTM B313
  • ASTM B483
  • ASTM B547
  • ASTM B548
  • SAE J454

Aluminium 5050 Uses

Alloy 5050 is a highly versatile metal, suitable for a wide range of uses. Most commonly, it is used in the automotive industry for lightweight components such as doors and hoods. In addition to this, Aluminium 5050 is also popular in manufacturing industries, where it can be crafted into shapes of all sizes. Its malleable nature, strength, and affordability make it an attractive choice for many companies looking to reduce costs without sacrificing quality. Furthermore, numerous home improvement projects have seen aluminum 5050 replace traditional materials due to its minimal care requirements and longevity. Aluminium 5050 has revolutionized our world through its many uses and advantages.

Corrosion Resistance

UNS A95050 is well-known for its excellent corrosion resistance – thanks to the addition of magnesium and chromium. This makes it ideal for outdoor applications, as it won’t succumb to rust or other corrosion forms even after long-term weathering exposure. We can also rely on Aluminum 5050 in saltwater environments since it can withstand salty atmospheres such as those found near the ocean. With its impressive durability and protection against the elements, Aluminium 5050 makes an excellent choice when looking for a durable metal that won’t need frequent maintenance.

Heat Resistance

UNS A95050 is known for its impressive heat resistance properties. It can withstand temperatures up to 300 degrees Celsius for extended periods of time without losing structural integrity. This makes it an ideal material for a variety of construction and engineering projects that require continuous exposure to high temperatures such as thermal processing lines or ovens. Aluminium 5050 also shows remarkable resistance to oxidation, which adds further value to its applications in the industrial sector. This helps prolong its life span while not needing any additional protective coatings. Its versatile nature helps many industries achieve their desired outcomes with minimized wastage and maximum quality results.

Heat Treatment

UNS A95050 heat treatment is a process used to strengthen the material and increase its wear resistance. It is similar to annealing, but it uses elevated temperatures for a short period of time. This process changes the microstructure of the material, making it more resistant to corrosion and fatigue cracking. This can make the material even up to three times stronger than before, creating possibilities for new engineering applications in industries such as automotive, aerospace, and construction that wouldn’t have been possible before heat treatment.


UNS A95050 machining is a popular manufacturing process used to create parts and components out of this popular aluminum alloy. The metalworking technology makes use of a wide range of advanced machinery and tools to shape, cut, drill, and trim aluminium pieces according to requirements. Machinists require great skills and knowledge to master the techniques that can help them achieve perfect results every time. Aluminum 5050 machining is widely used in medical equipment, aerospace components, motor vehicle parts and other everyday items fabricated from this metal alloy. Due to its corrosion resistancy, strength and lightweight properties, it is an ideal choice for many industries. For those seeking precision parts made with precise tolerance values, aluminium 5050 machining offers reliable solutions to meet their needs.


UNS A95050 welding is an incredibly applicable process in a wide variety of industrial applications. It is especially useful in joining most 5XXX series aluminum alloys due to its high quality fusion, with heat input easily adjustable depending on the thickness of material being welded. This makes it a go-to process for manufacturers who are looking for consistent and reliable welds that are both strong and aesthetically pleasing. Furthermore, aluminium 5050 welding has been proven to maintain good corrosion resistance compared to traditional low temperature aluminium finishing processes, making it ideal for outdoor applications as well as those requiring a high degree of cleanliness.


All in all, UNS A95050 offers tremendous benefits such as good weldability, machinability , corrosion resistance , heat resistance , formability , fatigue strength , high electrical conductivity and high thermal conductivity which make it popular among manufacturers across different industries ranging from aerospace to automotive engineering . Furthermore, its lightweight nature makes it suitable for production processes where weight reduction plays a crucial role in determining cost efficiency and effectiveness . Therefore if you are involved in any production process that requires these characteristics then aluminium 5050 should be your go-to choice!

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