Nimonic Alloy 80A Chemical Composition & Properties, Grade, Chart and Online Pdf

The development of Nimonic alloy 80, a nickel-chromium, stands out as one of the most commonly used high-performance materials due to its good mix of high strength and corrosion resistance at a higher temperature. The alloy comprises of nickel, chromium, and iron and usually includes other elements such as titanium and aluminum. Its chemical composition gives it the feature of being resistant to high temperatures, which makes it suitable for applications in aerospace, turbojet engines and for heating systems. Nimonic 80A has impressive creep resistance and outstanding oxidation resistance up to 815°C (1500°F) temperature. The characteristics that allows it to have high-temperature strength and good fabrication means that it’s the best option for an important structure which is designing to deal with very severe conditions. The website also has an all encompassing table and chart that enumerates its composition, properties, and grades which these groups of engineers and material scientists find very useful. The creation of PDF files with room for people to look up and apply the information is the convenient references that the files have.

Nimonic Alloy 80A Chemical Composition And Grade Table

Nimonic Alloy 80A is a super-strong nickel-chromium alloy with excellent strength and corrosion resistance at elevated temperatures due to its chemical composition. The primary ingredients nickel and chromium are typically 65% and 20% respectively of the chemical composition with the remaining being iron, titanium, aluminum, and cobalt. This alloy's composition enables Nimonic Alloy 80A to acquire some unique properties that can be used for the manufacturing of the aerospace' engines, gas-turbine engines, industrial heating equipment and others. Its grade chart is a reflection of its stricter quality control methods that provide reliability as well as durability contrary to extreme working conditions.

Nimonic Alloy 80A Composition Table
Elements Ni Cr Fe Co Ti Al Others
Min (%) - 18 - - 1.8 1.0 -
Max (%) 69 21 3 2 2.7 1.8 Rem

Advantages and Disadvantages of Nimonic Alloy 80A


  • High Temperature Strength: Resists softening at higher temperatures.

  • Excellent Oxidation Resistance: Prevents oxidation of components at high temperatures.

  • Good Creep Resistance: Minimizes deformation under extended stress at high temperatures.

  • Good Weldability: Facilitates fabrication procedures and creating intricate shapes.


  • Limited Availability: Not as accessible as more mainstream alloys.

  • Higher Cost: More expensive than some traditional materials.

  • Susceptible to Grain Boundary Precipitation: May undergo grain boundary precipitation at elevated temperatures.

  • Limited Cold Forming Ability: Relatively difficult to form at room temperature compared to other alloys.

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