Nickel alloy is an alloy composed of nickel as the base and other elements.
The Monel alloy containing about 30% copper produced around 1905 is an earlier nickel alloy.
Nickel has good mechanical, physical and chemical properties, adding appropriate elements can improve its oxidation resistance, corrosion resistance, high temperature strength and improve some physical properties.
Nickel alloys can be used as materials for electronic tubes, precision alloys (magnetic alloys, precision resistance alloys, electrothermal alloys, etc.), nickel-based superalloys, nickel-based corrosion-resistant alloys and shape memory alloys. Nickel alloys are widely used in energy development, chemical industry, electronics, navigation, aviation and aerospace and other sectors.

Nickel has very good plasticity, corrosion resistance and magnetic properties, so it is mainly used in steel, nickel-based alloys, electroplating and batteries, etc. It is widely used in various military manufacturing industries such as aircraft and radar, civilian machinery manufacturing and electroplating industries.

Nickel composites can be used as catalysts in hydrogenation and synthesis of methane in petrochemicals, with the advantage that they are not easily poisoned by H2S and S02.
Nickel compounds can be made into pigments and dyes. Nickel can also be made into nickel ferrite and nickel-zinc ferrite and other new ceramics, to do the core of the transformer and radio antenna, etc.
Very fine nickel powder, commonly used in the chemical industry as a catalyst.
Nickel is magnetic and can be attracted by magnets. And the alloy made of aluminum, cobalt and nickel, the magnetic properties are even stronger. It can be used to make electromagnetic cranes.