Superalloys or high-performance alloys are alloys that exhibit excellent mechanical strength and creep resistance at elevated temperatures, good surface stability, and resistance to corrosion and oxidation. They usually have an austenite-centered cubic crystal structure and have nickel, cobalt or nickel-iron as the base alloying element. The development of superalloys has been driven primarily by the aerospace and power industries.

Corrosion-resistant superalloys are widely used in extreme environments where tremendous heat and corrosion resistance are critical to the integrity of the final product. These high-temperature alloys are widely used in chemical and petrochemical processing, power plants, and the oil and gas industry.

Many industrial nickel-based superalloys contain alloying elements, including chromium (Cr), aluminum (Al), titanium (Ti), molybdenum (Mo), tungsten (W), niobium (Nb), tantalum (Ta), and cobalt (Limited company).

Superalloys, also known as high-performance alloys, have become the steels of choice for corrosion resistance and versatility.

Which nickel-based alloys are high-temperature alloys?
Alloy C-276, other common trade name Hastelloy C-276

Alloy 718, other common trade name Inconel 718
Alloy 20