Niobium is a grey shiny, rare heavy metal. It was discovered in 1801 by the English chemist and mineralogist Charles Hatchett. The name was taken from Greek mythology.
Niobium almost always occurs together with tantalum and because of their chemical similarity, the two elements are difficult to distinguish. For this reason niobium and tantalum are used together. Both elements form carbide in the steel structure, which makes the steel grades chemically resistant and increases the heat resistance.
Niobium is used as an alloying additive for stainless steels and special stainless steels, as in pipeline construction for hydrochloric acid production, but also in non-ferrous metals. These alloys have increased strength and ductility even in small quantities. Niobium forms strong carbides and can be used in filler metals to bind the carbon.
It is also used in the field of superconductivity, as a catalyst in the chemical industry, in the manufacture of high-pressure sodium vapour lamps for the external coating of glass bulbs and as an electrode material.
Aluminium can be formed and machined extremely well. It is particularly suitable for lightweight constructions.Read more
Here you can find out why aluminium was discovered so late and how aluminium can be produced.Read more
The carbon concentration influences the hardness of steels. In this way, the right steel can be found for every application.Read more