Comparison between Cu-Ni and Monel

by Dinesh

Posted on march 28, 2018 at 12:30 PM


Currently, both Monel and Cupro-Nickel highly utilized by different industries these are the widely preferred materials for various applications. Are you interested to know what these two alloys are as well as what they are really used for? You must consider the below mentioned factors. These two are the specialty products, of course, you don’t even know it.

Monel is the nickel-based alloys where nickel is the base metal, as well as copper, is the secondary alloying element. In general, Monel contains over 63 % nickel. CuproNickel is the copper-based alloys where nickel is the secondary alloying element. In general, this metal contains up to 30% nickel. CuproNickel is white; it is similar to silver in colour. Monel is a special metal that also refers to a group of copper-nickel alloys. Any mix of copper and nickel could be considered as the cupronickel but the particular alloys can be called Monel.

Of course, both alloy groups also have excellent corrosion resistance these kinds of metals highly used in seawater environments and many other corrosive applications.


Monel is a nickel contains 65 to 70% nickel, 20 to 29% copper and around 5% iron manganese as well as other compounds.

Cupronickel is considered as the alloy of copper and it contains nickel and strengthening elements like iron and manganese.

Nickel percentage:

Monel contains around 63% Nickel

Cupro Nickel contains less than 30% nickel

Corrosion Resistant Properties:

Cupronickel is considered as the group of copper-nickel alloys and it can be used saltwater environments because it has great corrosion resistant properties.

Monel is nickel-based traits and it has high resistance to salt water, atmospheric corrosion, as well as various acids like alkaline solutions.


Usually, both nickel-chromium alloy and nickel-copper alloy are used in applications with extreme heat as well a1s high-temperature corrosion, especially these materials can be used in severe conditions but these two metals also have some specific characteristics in different conditions. A company manufactures use these two kinds of materials in different conditions to utilize its complete capabilities.

Monel Applications:

Chemical processing and hydrocarbon processing equipment Marine engineering Boiler feed water heaters Gasoline and freshwater tanks Industrial heat exchangers Chlorinated solvents Crude petroleum stills Heat exchangers Oil refinery crude columns Feed water generator tubing Crude oil distillation towers

Monel is an excellent choice for applications like chemical processing equipment, crude petroleum stills, fresh water tanks, gasoline and other applications. Especially it can be widely utilized for saltwater applications.


Nickel-copper alloy has high strength as well as excellent corrosion resistance in the different range of media like hydrofluoric acid, sea water, alkalies, sulfuric acid. Nickel-chromium alloy also has outstanding resistance to oxidation as well as it is the best metal to use in forms of high-temperature corrosion. These special characteristics make nickel-copper as the excellent choice for use in oil as well as gas extraction. In general, drilling for oil involves harsh conditions so it requires products which can withstand harsh conditions.

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