Inconel is not one specific alloy, but rather a group or a family of alloys that are considered to be superalloys. The family is all austenitic and has a nickel, chromium and molybdenum base. The different alloys within the Inconel family have additional elements in various percentages that add to the properties of the given alloy.
As a group, all Inconel Studs and components are highly corrosion resistant, and they are also very good in extreme environments where oxidation is a concern for other types of metals and alloys. Additionally, when this superalloy is heated, it creates a very thick and very stable layer that coats the surface and provides protection. This passivating layer is not unique to Inconel alloys, but it is more significant than most alloys offer.
Benefits of the Superalloy
There is a reason that Inconel is called a superalloy. The use of Inconel Studs ranges from cryogenic tanks to shipbuilding and to processing equipment where temperatures can reach up to 2200 degrees Fahrenheit.
These studs can be exposed to marine environments, aerospace, alkaline and acids and even neutral salts without any danger of damage that will cause failure of the stud, even with continual exposure.
Common Uses
As mentioned above, Inconel Studs are often used in marine and shipbuilding as well as in aerospace and aviation fabrication and manufacturing. You will also find these studs used in oil and gas refinery equipment as well as in many types of chemical processing applications. Various alloys including Inconel 625 and Inconel 725 are commonly used, with the 725 alloy offering additional strength through heat treatment.
They are also used in heat treating equipment for other alloys and metals. Inconel 686 is a common choice for waste management equipment and systems as well as paper and pulp production applications.
