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Ferro Niobium

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Ferro Niobium is a ferrous alloy consisting mainly of Niobium and Iron. It also contains impurities such as aluminium, silicon, carbon, sulphur and phosphorus. Depending on the niobium content of the alloy, it can be classified as FeNb50, FeNb60 and FeNb70. ferroalloys produced from columbite-tantalite ore contain tantalum and are called columbite-tantalum.
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Ferroniobium is an iron alloy mainly composed of niobium and iron. It also contains impurities such as aluminium, silicon, carbon, sulfur and phosphorus. According to the niobium content in the alloy, it is classified as FeNb50, FeNb60 and FeNb70. The iron alloy produced from niobium-tantalum ore contains tantalum and is called niobium-tantalum iron. Ferroniobium and niobium-nickel alloys are used as niobium additives in the vacuum smelting of iron-based alloys and nickel-based alloys. The requirements are low gas content and low harmful impurities, such as Pb, Sb, Bi, Sn, As, etc., all less than 2×10, so it is prefixed with "VQ" (vacuum quality), such as VQFeNb, VQNiNb, etc. The ferroniobium-manganese alloy (10%~15% Nb) produced in China is used as an alloying agent for low alloy steel and a niobium treatment agent for carbon steel.



TrademarkChemical composition(%)
Nb+TaTaAlSiCSPWMnSnPbAsSbBiTi
FeNb7070-800.53.81.50.040.030.040.30.80.020.020.010.010.010.3
FeNb60-A60-700.52.52.00.050.030.050.21.00.020.02



FeNb60-B60-703.0330.30.10.31.5






FeNb5050-600.52.02.50.050.030.050.1






FeNb2015-252.03110.30.10.31.0







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