ThePipingMart Blog Grades Aluminum 8176 Alloy (UNS A98176) – Composition, Properties and Uses

Aluminum 8176 Alloy (UNS A98176) – Composition, Properties and Uses

Aluminum 8176

Aluminum 8176 is a high-strength alloy used in a variety of applications, from aerospace to industrial. UNS A98176 aluminum alloy is one of the most popular on the market due to its combination of strength, corrosion resistance, heat resistance, and machinability. Read on to learn more about the uses and benefits of 8176 Alloy.

8176 Alloy Composition

Element Content (%)
Aluminum, Al ≤ 98.5
Iron, Fe 0.40 – 1
Zinc, Zn ≤ 0.10
Silicon, Si 0.030 – 0.15
Gallium, Ga ≤ 0.030
Other (each) ≤ 0.050
Other (total) ≤ 0.15

8176 Alloy Physical Properties

Properties Metric Imperial
Density 2.71 g/cm³ 0.0979 lb/in³
Melting point 643 – 657.2°C 1190 – 1215 °F

8176 Alloy Mechanical Properties

Properties Metric Imperial
Tensile strength 117 MPa 17000 psi
Yield strength 96.5 MPa 14000 psi
Elongation at break (@thickness 1.59 mm/0.0625in) 15% 15%
Elastic modulus 68.9 GPa 10000 ksi
Shear strength 68.9 MPa 10000 psi

8176 AlloyThermal Properties

Properties Metric Imperial
Thermal expansion co-efficient (@20-100°C/68-212°F) 23.6 µm/m°C 13.1 µin/in°F
Thermal conductivity 231 W/mK 1600 BTU in/hr.ft².°F

8176 Alloy Uses

Aluminium 8176 is a type of aluminum alloy with a unique combination of properties. It is known for its outstanding durability, strength and ductility, which makes it perfect for an array of industrial applications. Examples include panels in aerospace vehicles, components in the automotive industry, heat exchangers and structural components in nuclear energy plants, bridges, buildings and columns. Aluminium 8176 has also become increasingly popular in the food packaging industry due to its non-toxic surface that keeps food free from contamination. Additionally, this durable alloy can be easily machined or formed into complex shapes and has excellent corrosion resistance, making it an ideal material for areas with demanding conditions, such as offshore oil platforms.

Corrosion Resistance

Aluminum 8176 offers superior corrosion resistance compared to other aluminum alloys. It has excellent resistance to both wet and dry corrosive environments and can withstand exposure to salt water for extended periods of time without rusting or corroding. This makes it an ideal material for applications such as marine equipment and components that are exposed to salt water or other corrosive environments.

Heat Resistance

Aluminum 8176 also boasts exceptional heat resistance properties. It can be heated up to 600°F without losing its strength or becoming brittle, making it suitable for use in high-temperature applications such as engine parts and exhaust systems. Additionally, it can also be used in low-temperature applications as it retains its strength even when cooled down to -200°F.

Heat Treatment

Aluminium 8176 can be heat treated in order to improve its strength, hardness, and ductility. Heat treating involves heating the alloy to a specific temperature before cooling it quickly to strengthen the metal’s properties. A variety of heat treatments can be applied depending on the desired application and end-use requirements.

Machining & Welding

Aluminum 8176 has good machinability, which makes it easy to shape, cut, drill, form, and finish this alloy into different components for various projects and products. Additionally, aluminium 8176 is weldable using MIG welding techniques with appropriate shielding gas coverage for optimal results. Its excellent weldability properties, along with corrosion resistance and high-strength characteristics, make this alloy an ideal choice for many welding projects across various industries, such as automotive manufacturing or aircraft production.


Overall, aluminium 8176 is an excellent choice for projects requiring superior strength without sacrificing performance in terms of corrosion resistance or heat resistance capabilities needed in demanding applications like aerospace engineering or shipbuilding operations where components must perform under extreme conditions while maintaining their structural integrity over time. Its impressive features, good machinability, and excellent welding capabilities make aluminium 8176 a top choice among professionals looking for an all-around reliable performance material that perfectly meets their specialized project needs every time!

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