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High quality ferro niobium
FeNb

Niobium is a high melting point metal, steel gray, atomic weight 92.9064, outer electronic structure 4d5s, melting point 2467 ℃, boiling point 4740 ℃, density (20 ℃) for 8.6g/cm3. Figure 1 for the FeNiobium binary system equilibrium phase diagram. There are two eutectic points and a MgZn2-type Raschmannian phase εNbFe2. The two eutectic points are located in Nb11.6%, 1360 ℃ and Nb about 55%, 1560 ℃. Industrially produced ferro-niobium (FeNb60) has a melting temperature range of 1520-1600°C and a density of about 8.0 g/cm3.

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Ferro Niobium is mainly used in smelting high temperature (heat-resistant) alloys, stainless steel and high strength low alloy steel. It gives the steel good formability and welding properties.

In addition, adding niobium to carbon steel in the heating and cooling process, due to the niobium fine crystal strengthening and carbon solid solution strengthening, can effectively improve the strength, hardness and creep resistance of steel.

At the same time, ferro-niobium is also used in the production of high-temperature alloys, such as alloy 718. Overall, ferro-niobium plays an important role in the steel industry, especially in the production of high-temperature alloys and stainless steels.

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High quality ferro niobium

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