Super Alloy Inconel 901™

Topics Covered

Chemical Composition
Physical Properties
Other Designations


Super alloys are also known as high performance alloys. They have good creep and oxidation resistance. They can be formed in different shapes, and consist of a number of elements in different combinations in order to obtain the desired result. They have the ability to function at high temperatures and mechanical stress, and also where high surface stability is required. Solid-solution hardening, work hardening, and precipitation hardening are performed for strengthening the super alloys. Cobalt-based, nickel-based, and iron-based alloys are three types of super alloys. All the three types can be used at temperatures above 540°C (1000°F). The cobalt-based and nickel-based super alloys are wrought or cast forms based on their applications or compositions. The cobalt-based super alloys have higher melting points than that of nickel or iron alloys.

The following datasheet gives an overview of Inconel 901™.

Chemical Composition

The chemical composition of Inconel 901 ™ is outlined in the following table.

Element Content (%)
Nickel, Ni 41-43 .5
Chromium, Cr 11-14
Titanium, Ti 2.2-2.75
Silicon, Si 1 max
Manganese, Mn 0.8 max
Copper, Cu 0.5 max
Aluminum, Al 0.35 max
Carbon, C 0.1 max
Phosphorus, P 0.04 max
Sulfur, S 0.04 max
Boron, B 0.01 - 0.02
Iron, Fe Remainder

Physical Properties

The following table shows the physical properties of Inconel 901™.

Properties Metric Imperial
Density 7.8 g/cm³ 0.283 lb/in³

Other Designations

Other designations that are equivalent to Inconel 901™ include:

  • AISI 681
  • AISI 682
  • PWA 1002
  • PWA 1003
  • SPS M259

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