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Specialty Nickel Alloys & Their Uses

Uses of Specialty Nickel Alloys

Texas Flange supplies a wide variety of specialty alloys in flanges and fittings for the global industries that we serve.

We’ve noted a few differences in some of the more popular chrome and nickel products which are used in various refining, nuclear, petrochemical, and corrosion process applications.

Alloy C276

Commonly referred to as “Hastelloy” ® grade C276 developed by Haynes International. Perhaps the most popular nickel-based alloy, used in the widest variety of applications, including water treatment, chemical processing, and some nuclear reactor operations.

Hastelloy is widely available in various types of flanges, fittings, valves, and other assembly components.

Nickel 200/201

True to its name, this is a material consisting of virtually pure nickel (roughly 99 percent by composition) with excellent malleability and ductility, giving it good weldability and agreeability within its commercial utilization.

The material is of particular use in heat and corrosion resistance applications involving food processing, electronics, and defense components.

Alloy 20 – UNS N08020

Also known as “Carpenter 20” ®, this nickel iron chromium steel alloy is commonly used in process industries where corrosion resistance is critical.

Alloy 20 contains a small percentage of molybdenum and copper and is particularly common in applications involving sulfuric acid because of its resistance to crevice pitting, stress cracking, and overall corrosion.

Monel 400

A nickel-copper alloy developed by the International Nickel Co and authorized in 1906. This material is resistant to corrosion but more difficult to work with than other nickel alloys of the same family.

Monel is commonly used in marine applications involving the perpetual corrosion of seawater and the development of accessories within assemblies handling corrosive material, such as strainers, wiring, valve gates, and fastener hardware.

Inconel 600/625 –

Nickel-chromium alloys were developed in the 1940s in the United Kingdom. They are commonly utilized in nuclear engineering, aerospace engineering, commercial refining, and other demanding large-scale applications.

These materials have excellent resistance to corrosion and great strength even in high heat and stress utilization, making them excellent candidates for use in nuclear reactors and engine turbines.

Incoloy 800/825 –

Similar to its Inconel counterpart, these grades of nickel-chromium alloys have tight ranges on aluminum, titanium, and other trace element contents in order to produce material with the best properties in high-heat applications.

Commonly utilized in heat exchangers, power plants, furnaces, nuclear fuel processing, and other situations that involve corrosive media at high temperatures.

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