Nickel Sulphide Project Pipeline Empty
Nickel is present in over 3000 different alloys that are used in over 300,000 products for consumer, industrial, military, transport/aerospace, marine and architectural applications.
Nickel’s biggest use, about 65%, is in alloying – particularly with chromium and other metals to produce stainless and heat-resisting steels. Its primary function is to stabilize the austenitic (face-centered cubic crystal) structure of the steel. Normal carbon steel will, on cooling, transform from an austenite structure to a mixture of ferrite and cementite. When added to stainless steel nickel stops this transformation keeping the material fully austenite on cooling. Austenitic stainless steels have high ductility, low yield stress and high tensile strength when compared to carbon steel – aluminum and copper are examples of other metals with the austenitic structure.
Another 20% is used in other steels, non-ferrous alloys (mixed with metals other than steel) and super alloys (metal mixtures designed to withstand extremely high temperatures and/or pressures or have high electrical conductivity) often for highly specialized industrial, aerospace and military applications.
About 9% is used in plating to slow down corrosion and 6% for other uses, including coins, electronics, in *batteries for portable equipment and hybrid cars, as a catalyst for certain chemical reactions and as a colorant – nickel is added to glass to give it a green color.