What is Inconel? – Definition, Uses, Types, and more


Inconel is a nickel-chromium-based superalloy that is highly resistant to corrosion and heat. In this article, we will explore what Inconel is, its various types and specifications, common applications, advantages over other materials, and interesting facts about Inconel.

What is Inconel

Inconel is a registered trademark of Special Metals Corporation for a series of nickel and nickel-iron-based corrosion-resistant superalloys. The name “Inconel” comes from “INCo nickel”, referring to its chief components of nickel and chromium and the company INCO which developed the alloy system in the 1940s.

Inconel alloys contain a minimum of 50% nickel along with chromium for oxidation and corrosion resistance. They can withstand high temperatures of up to 2000° F (1100° C) without protection by oxidation. Thanks to their high nickel content, Inconels possess excellent strength and resistance against corrosion from saltwater, acids, alkalis, and chlorine at high temperatures.

Types and Specifications of Inconel

There are many types and grades of Inconel alloys tailored for specific temperature ranges and corrosive environments:

Common Uses and Applications of Inconel

Thanks to their exceptional corrosion resistance, strength, and ability to operate continuously at high temperatures, Inconels see widespread use in industries.


1. How Is Machining With Inconel?

Machining Inconel, a family of nickel-chromium-based superalloys, is notoriously challenging due to the material’s unique properties. Inconel alloys are designed for high temperature and corrosive environments, which also make them difficult to cut and shape using traditional CNC machining processes. There are some tips for Machining.

2. How Are Welding Jobs with Inconel?

Welding Inconel alloys can be as challenging as machining them, due to their robust properties that are essential for their applications in extreme environments. There are some tips for Welding.

3. How Much Does an Inconel Cost?

The cost of Inconel can vary depending on the specific grade, form (pipe, tube, fittings, etc.), and market conditions.

Price of Inconel Pipe:

Price of Inconel Tube:

Price of Inconel Fittings:

4. How Hard is the Inconel?

The hardness values for Inconel alloys can vary depending on the specific alloy and the treatments it has undergone. The ranges you’ve provided are representative of general conditions of Inconel alloys, but actual hardness values can differ based on the exact composition and processing history of the material.