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Nimonic Alloy 81 Chemical Composition Properties, Grade, Chart and PDF Online

The Nimonic Alloy 81 is the high-temperature nickel-based alloy which has the excellent reputation for its unique features such as the oxidation resistance and high strength at extremely high temperatures. It is a compound of nickel, chromium and aluminum, however, exhibits exceptional resistance to corrosion even at temperatures up to 1200°C, hence its use in high-temperature applications such as aviation and gas turbines. It's chemical composition is usually the combination of nickel (Ni), chromium (Cr), aluminum (Al), titanium (Ti) and traces of other elements that are used to give it extra properties. A Nimonic 81 gives higher creep resistance and good corrosion resistance, and so is applicable to critical parts which undergo high stress and tough environmental conditions. The content of the alloy, its grades as well as its composition is clearly shown in the charts and PDF files uploaded on the website, which can be used by materials engineers and aerospace researchers.

Nimonic Alloy 81 Chemical Composition And Grade Table

Nimonic Alloy 81 is a nickel-based alloy with the high-temperature properties of a nickel base and excellent oxidation and wear resistance even in conditions of high temperature. The chemical composition of this alloy often contains nickel as the main element; however, chromium, cobalt and some extra titanium and aluminum alloy elements are also used. The exact components may change a tad due to the precise requirements of the manufacturer and specific applications. Nimonic Alloy 81 is widely used in the fabrication of aerospace and gas engine components because of its superior mechanical properties, resistance to corrosion, in high-temperature applications.

Nimonic Alloy 81 Composition Table
Elements Ni Cr Fe Co Ti Al Others
Min (%) - - - - - - -
Max (%) 63 30 2 1.8 1.0 0.9 Rem

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