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Ferroniobium is an important iron niobium alloy, with an niobium content of 60-70%. It is the main source for niobium alloying of HSLA steel and covers more than 80% of the world wide niobium production. The niobium is mined from pyrochlore deposits and is subsequently transformed into the niobium pentoxide Nb2O5. This oxide is mixed with iron oxide and aluminium and is reduced in the an aluminothermic reaction to niobium and iron. The ferroniobium can be purified by electron beam melting or used as it is. For alloying with steel the ferroniobium is added to molten steel before casting. The lagest producers of ferroniobium are the same as for niobium, and are located in Brazil and Canada.

30/10/2008 6500 6500 6500
30/09/2008 6800 6800 6800
30/06/2008 7000 7000 7000
30/03/2008 7300 7300 7300
30/01/2008 7400 7400 7400

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