Which of the following nickel-based alloys is/are superalloys?

Which of the following nickel-based alloys is/are superalloys? Correct Answer Hastelloy C-276, Inconel 718 and Hastelloy HX

Superalloys or high-performance alloys are the alloys that can resist extreme conditions such as high temperature, high stress, high wear, and corrosive atmospheres. Nickel-based alloys are widely used as superalloys that include Hastelloy C-276, Inconel 718, and Hastelloy HX.
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