Material Description

Niobium is a grey-white metal with melting point of 2468℃, boiling point of 4,742 ℃, and density of 8.57g/cm3. Niobium is stable in air at room temperature, and cannot be fully oxidized in oxygen even when it’s hot and turns red; it can directly compound with sulfur, nitrogen, and carbon at high temperature, can form alloys with titanium, zirconium, hafnium, and tungsten. It has no chemical action with inorganic acids or alkali; it is not dissolved in aqua regia, but can be dissolved in hydrofluoric acid. Niobium has oxidation states of -1, + 2, + 3, +4 and +5, in which +5 compound is most stable.

Areas of Application

Because of high melting point, corrosion-resistance, cold-processing performance and other characteristics, niobium and niobium alloy bar and wire products are widely used in chemical, electronics, aviation and space fields. With a density of 16.57g/cm3, niobium and niobium alloy bars are used as structural materials for aero-engines and rocket nozzles, internal components and coating materials for reactors, and various corrosion-resistant parts for corrosion environment with nitric acid, hydrochloric acid or sulfuric acid. Adding zirconium into niobium can significantly improve the antioxidant properties and strength of materials; by this way, niobium and niobium zirconium alloy wires are widely used in production of high pressure sodium lamps and anode lead wires for electrolytic capacitor.

Product Specifications

Different Options for You

AT&M Refractory Metal Materials adopts high-performance electron beam melting technology to produce niobium and niobium alloy with different sizes and specifications. In particular, the company utilizes a large refractory metal processing platform to develop a series of high-performance niobium and niobium alloy products, such as niobium plates, niobium rods, tantalum-niobium alloy, zirconium-niobium alloy, and molybdenum-niobium alloy.

Production Process

Leading Process Leads to Leading-Edge Products

As different areas of application require different material performance, AT&M Refractory Metal Materials adopts different processing methods to meet different performance requirements.

Company Advantages

High Requirements, High Quality

As one of the first companies engaged in the research and production of tungsten, molybdenum, tantalum, niobium and other refractory metals in China, AT&M Refractory Metal Materials has the most advanced production and testing equipment, such as large-scale hot and cold isostatic press, 2400 ℃ high-temperature sintering furnace, vacuum sintering furnace, large electronic beam melting furnace, high-performance rolling mill and others. While replying on the national iron and steel materials testing center, the company can provide rapid and convenient test and analysis on material performance.

During the continuous production for more than 50 years, AT&M Refractory Metal Materials has accumulated rich experiences in research, development and production. With leading-edge product quality and technologies, it has become a major global R&D and production base for tungsten, molybdenum, tantalum, niobium and other refractory metallic materials.

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Please call us to know more about niobium and niobium alloy products provided by AT&M Refractory Metal Materials.