Niob
We trade with metal scrap of the following alloys:
- Niobium 99.8% (Type 1), Nb99.8
- Niobium 99.6% (Type 2), Nb99.6
- Niobium-Zirconium (Type 3), NbZr1
- Niobium-Zirconium (Type 4), NbZr1
- Niobium-Hafnium Nb10Hf1Ti
Niobium is a chemical element with the element symbol Nb and the atomic number 41. It belongs to the transition metals, in the periodic table it is in the 5th period as well as the 5th subgroup (group 5) or vanadium group.
Use
Niobium is used as an alloying additive for stainless steels, special stainless steels (e.g. tubes for hydrochloric acid production) and non-ferrous alloys, as niobium-alloyed materials are characterised by increased mechanical strength. Even in concentrations of 0.01 to 0.1 mass percent, niobium in combination with thermomechanical rolling can significantly increase the strength and toughness of steel. The first tests on the use of niobium as an alloying element (replacement of tungsten) were carried out in the USA in 1925. Steels refined in this way are frequently used in pipeline construction. As a strong carbide former, niobium is also alloyed in welding consumables to bind carbon.
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