What kind of metal is Inconel?

Inconel grades are nickel-based alloys, primarily alloyed with chromium where Inconel is a registered trademark of Special Metals Incorporated. There are up to twenty different grades within the Inconel family, but Inconel 718 and Inconel 625 are perhaps the most widely known and used.

Inconel alloys are primarily composed of nickel, with chromium as the secondary element. They also contain small amounts of other elements like iron, molybdenum, copper, cobalt, and trace amounts of other elements such as titanium and aluminium. The combination of elements in Inconel alloys provides them with highly attractive physical and mechanical properties, such as:

High temperature resistance, allowing them to withstand extreme temperatures seen in applications such as gas turbines, jet engines, and nuclear reactors.

Corrosion resistance, whether that’s resistance to corrosive ‘wet’ environments or oxidation in hot ‘dry’ environments. It is therefore suitable for use in demanding applications found within the chemical process industries, marine applications, and aerospace components.

Good mechanical strength, most of which is retained at higher temperatures meaning they can also resist creep when subject to prolonged exposure to high temperatures and mechanical loads.

Langley Alloys stocks Alloy 625 and Alloy 718 as round bars from 5/8”-10” diameter (15.87-254mm), and Alloy 725 as round bars from 1”-4” diameter (25.4-101.6mm).


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For more information about our range of alloys, please contact Langley Alloys today. 

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