Ferronickel - Properties, Applications

Topics Covered

Chemical Composition
Physical Properties


Ferronickel is a ferroalloy that contains approximately 35% nickel and 65% iron. Its CAS number is 11110-39-7. It is a shiny metallic solid material and can be obtained from the carbothermic reduction of serpentinic minerals, such as serpentine, limonite, or garnierite. It enables the production of products with special electronic, magnetic and catalytic properties.

Ferronickel remains stable under normal storage conditions; however when exposed to carbon oxides in reducing atmospheres, there is a risk of forming the toxic gas nickel carbonyl.

The following sections will discuss the various properties of ferronickel in more detail.

Chemical Composition

The following table shows the chemical composition of ferronickel ingots.

Element Content (%)
Nickel, Ni 17 - 24
Cobalt, Co 1.2 max
Sulfur, S 0.25 max
Arsenic, As 0.15 max
Copper, Cu 0.10 max
Silicon, Si 0.02 max
Carbon, C 0.02 max
Phosphorous, P 0.020 max
Chromium, Cr 0.003 max
Iron , Fe Remainder

Physical Properties

The following table discusses the physical properties of ferro nickel.

Properties Metric Imperial
Density 3.8 g/cm³ 0.137 lb/in³
Melting point 1500°C 2732°F
Boiling point 2900ºC 5252°F


The following are the common application areas of ferronickel:

  • For manufacturing austenitic stainless steels and nickel alloy steels
  • For manufacturing batteries, electronics, and gas turbines

Ferro nickel is widely applied in the following sectors:

  • Engineering
  • Transport
  • Electrical and electronic
  • Building and construction
  • Metal goods and tubular products

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