ThePipingMart Blog Grades Aluminum 7116 Alloy (UNS A97116) – Composition, Properties and Uses

Aluminum 7116 Alloy (UNS A97116) – Composition, Properties and Uses

Aluminium 7116

Aluminium 7116 is an alloy of aluminum, zinc, and magnesium. It’s renowned for its corrosion resistance, heat resistance, machinability and weldability. This makes it the perfect choice for a variety of industries. In this blog post, we’ll discuss why UNS A97116 is an ideal material for your business operations.

7116 Alloy Composition

Element Content (%)
Aluminum, Al 91.5 – 94.5
Zinc, Zn 4.2 – 5.2
Magnesium, Mg 0.80 – 1.4
Copper, Cu 0.50 – 1.1
Iron, Fe ≤ 0.30
Silicon, Si ≤ 0.15
Titanium, Ti ≤ 0.050
Vanadium, V ≤ 0.050
Manganese, Mn ≤ 0.050
Gallium, Ga ≤ 0.030
Other (each) ≤ 0.050
Other (total) ≤ 0.15

7116 Alloy Physical Properties

Properties Metric Imperial
Density 2.78 g/cm³ 0.100 lb/in³

7116 Alloy Mechanical Properties

7116 alloy is an advanced material that has seen immense popularity amongst those who are searching for a lightweight and durable solution. Its mechanical properties have been carefully studied to ensure the greatest level of strength and flexibility in a range of applications. The alloy’s hardenability, creep resistance and thermal conductivity give it an advantage, while its machinability allows manufacturers to easily shape the material into the exact form they require. 7116 alloy is an ideal choice for anyone looking to maximize the benefits of their materials without sacrificing quality or utility.

7116 Alloy Uses

Aluminium 7116 is amongst the most sought-after alloys for building applications due to its sturdiness and high corrosion resistance. It is a versatile material that can be used in a variety of structurally important components, from vessel structures and shells to turbine airfoils and fuel tanks. In addition, it can also be used in household products such as appliances, window frames or utensils. As such, aluminium 7116 is an excellent choice for anyone looking for a reliable yet lightweight solution to all their building needs.

Corrosion Resistance

Aluminium 7116 has excellent corrosion resistance—it can withstand most forms of chemical corrosion and will not corrode in wet or humid conditions. This makes it a great choice when you need to manufacture products that will last a long time without rusting or decaying due to environmental factors like humidity or saltwater exposure. Its corrosion resistance also ensures that your finished product won’t degrade over time due to weathering and other external factors.

Heat Resistance

One of the primary benefits of using aluminum 7116 is its heat resistance. The alloy can handle temperatures up to 300°C without suffering any damage or loss of strength—making it ideal for applications where high temperatures are common (e.g., automotive engines). It’s also highly resistant to heat fatigue, which means it won’t crack or break down over time from repeated exposure to high temperatures.

Heat Treatment & Machining

Aluminium 7116 is easy to work with—it can be heat treated and machined with relative ease due to its low melting point and high wear resistance. The alloy can be heat treated quickly and effectively under controlled temperatures in order to achieve desired results such as increased hardness or improved thermal conductivity. It can also be machined easily without worrying about chipping or breaking down due to excessive wear during the process, thanks to its superior strength and toughness properties.


Lastly, aluminium 7116 is easy to weld due to its low melting point and good ductility properties. This makes it a great choice for projects where welding is required since it doesn’t require specialised equipment or complex techniques for successful application. The alloy also has good weldability properties, which further enhances its usability in this regard.


As you can see, aluminum 7116 is an incredibly versatile material with numerous benefits that make it well-suited for a variety of applications across many different industries, from automotive manufacturing to food processing and more! Its superior corrosion resistance, heat resistance, machinability, weldability and strength make it an all-purpose alloy that will help ensure your finished products are up-to-par with the highest industry standards while still being cost-effective! For these reasons alone, Aluminium 7116 should definitely be considered when looking at materials for your business needs – regardless of what they may be!

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