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Nickel-Alloy

Nickel 200 | Nickel 200 Machinability | Nickel 200 Properties | Nickel 200 composition | Nickel 200 density | Nickel 200 datasheet | Nickel Applications

Nickel-Alloy

Nickel CoinsNickel has been used in alloys that date back to the dawn of civilization. Chemical analysis of artifacts has shown that weapons, tools, and coins contain nickel in varying amounts. Nickel gives strength and ductility

Nickel in elemental form or alloyed with other metals and materials has made significant contributions to our present-day society and promises to continue to supply materials for an even more demanding future.

Nickel is a versatile element and will alloy with most metals. Complete solid solubility exists between nickel and copper. Wide solubility ranges between iron, chromium, and nickel make possible many alloy combinations. 

Applications and Characteristics of Nickel Alloys

Nickel and nickel alloys are used for a wide variety of applications, the majority of which involve corrosion resistance and/or heat resistance. Some of these include:

  • Aircraft gas turbines
  • Steam turbine power plants
  • Medical applications
  • Nuclear power systems
  • Chemical and petrochemical industries

A number of other applications for nickel alloys involve the unique physical properties of special-purpose nickel-base or high-nickel alloys. These include:

  • Low-expansion alloys
  • Electrical resistance alloys
  • Soft magnetic alloys
  • Shape memory alloys

Heat-Resistant Applications. Nickel-base alloys are used in many applications where they are subjected to harsh environments at high temperatures. Nickel-chromium alloys or alloys that contain more than about 15% Cr are used to provide both oxidation and carburization resistance at temperatures exceeding 760°C.

Corrosion Resistance. Nickel-base alloys offer excellent corrosion resistance to a wide range of corrosive media. However, as with all types of corrosion, many factors influence the rate of attack. The corrosive media itself is the most important factor governing corrosion of a particular metal.

Low-Expansion Alloys Nickel was found to have a profound effect on the thermal expansion of iron. Alloys can be designed to have a very low thermal expansion or display uniform and predictable expansion over certain temperature ranges.

Iron-36% Ni alloy (Invar) has the lowest expansion of the Fe-Ni alloys and maintains nearly constant dimensions during normal variations in atmospheric temperature.

The addition of cobalt to the nickel-iron matrix produces alloys with a low coefficient of expansion, a constant modulus of elasticity, and high strength. 

Trade Names and Owners of Nickel Alloys

HASTELLOY is a registered trade name of Haynes Intl.
INCOLOY, INCONEL, MONEL and NIMONIC are registered trade names of the INCO family of companies.
INVAR is a registered trademark of Imphy S.A.
MU-METAL is a registered trademark of Telcon Metals Ltd
NICORROS and NICROFER are registered tradenames of Krupp UM GmbH

Nickel has a unique combination of properties

  • High melting point, 1453ºC
  • Adherent oxide film
  • Resists alkalis
  • Ductile
  • Alloys readily - as solute and solvent
  • Magnetic at room temperature
  • Deposited by electroplating
  • Catalytic

 

Nickel - Monel® - Inconel® - Incoloy® - Hastelloy® - Alloy 20 - Duplex - Olets® are the registered trademarks of their respective owners.

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