Five Uses of Inconel and Why to Use it

Why and where is Inconel used?

Inconel is a nickel-chromium-based austenitic superalloy with specific applications. Inconel has several properties such as corrosion resistance, oxidation resistance, and the ability to withstand high temperatures, making it an ideal material for extreme environments. Inconel has high-temperature strength due to solid solution strengthening or precipitation strengthening. This material is also pressure resistant, making it ideal for high-pressure applications.

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Uses of  Inconel Alloys:

Aerospace and jet engines

Nickel alloys are a natural alternative in the aerospace industry. Engine parts, in particular, are subjected to extreme temperatures and pressures. Materials must be able to withstand this environment while still retaining strength and integrity. Nickel alloys resist creep under high-stress conditions, have low expansion at these high temperatures, and are corrosion-resistant.

Inconel 600, for example, is used in jet engines and airframe parts such as exhaust liners, lock wires, and turbine seals. Whereas Inconel 601 is used in a wide range of aerospace technology due to its ability to withstand stress and ease of fabrication.

Oil and gas Extraction

One of the primary industrial applications of Inconel alloys is oil and gas extraction. Because of the high temperatures and the inflammable and corrosive raw materials being processed or stored, many factors are evaluated for oil and gas extraction design engineers when it comes to material selection.

Inconel 625 is one such superalloy that is used in the separation of extracted fluids in LNG manufacturing processing systems. Inconel alloy 625 has excellent fatigue and thermal-fatigue strength, oxidation resistance, high creep, tensile, and rupture strength, and excellent weldability. Steel transfer piping in sour gas and gas extraction equipment is frequently lined with it.

Pollution control and waste disposal

Working in environments such as pollution control and waste processing is difficult, so materials must work hard. Natural hazardous and corrosive substances must be deposited, moved, and processed. As a result, alloys used in waste-processing systems must be resistant to reducing acid solutions and oxidizing agents, as well as resistant to the high temperatures involved in operations without losing structural integrity or strength.

One such alloy is Inconel C-276, which has exceptional corrosion resistance in these types of environments. This alloy’s high molybdenum content (15-17%) makes it resistant to pitting and crevice corrosion. Its low carbon content reduces carbide precipitation during welding, ensuring corrosion resistance in welded structures.


Car engines are delicate beasts that generate a lot of heat but must be reliable and light. Engineers are constantly procuring materials that can match technological developments and drive to deliver the ‘next big thing’ in cars as the car industry advances. Car engines must be fuel-efficient and pollutant-free in addition to having more power and thrust.

As a result, selecting the appropriate material is critical. Because Inconel alloy 625 is one of the most versatile materials, it can be used in this application. Exhaust couplings in high-performance cars and supercars are frequently made of Inconel 625. Sensors, safety devices, ignition systems, and electrical switchgear all use Inconel alloys.

Marine industry

In a variety of seawater applications, Inconel alloys are used. On offshore platforms or in power and processing plants that use seawater as a cooling medium. Because seawater systems are highly corrosive, it is necessary to use materials that will not degrade under these conditions.

Inconel alloys perform admirably in such extreme conditions. Inconel 625, for example, is used in propeller blades, propulsion motors, wire rope, and sheathing for underwater communication cables. Inconel alloys are also used in platform risers, hangers, down-hole equipment, and high-strength fasteners.


Inconel is an incredibly valuable material with a multitude of uses— ranging from aerospace parts to challenging chemical processing. With its unique ability to withstand high temperatures, corrosion resistance and excellent properties in extreme environments, there are dozens of applications for the alloy. Additionally, Inconel can be easily formed into any shape and size needed for the particular application. All around, the material provides amazing performance, expansive uses and value-added benefits to customers across many industries. Whether modifying an airplane part or experimenting with a new production method in the chemical industry, Inconel encompasses superior properties that offer a wide range of options when it comes to creating products. Ultimately, the versatility and advanced strength of this incredible alloy are why so many companies rely on it every day to produce quality components and maximize efficiency in their operations.

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