XANB Rare and Precious Metal Materials Technology Group was established in 1980 as a joint venture company between SXXB Special Alloy Materials Technology Group and China Refractory Metal Materials Research Institute. Historically, it has undertaken a number of national key project development tasks, and a large number of products have been used in Chinese aerospace projects such as ” Key projects such as “Shenzhou”, “Chang’e”, “Long March” and “Tiangong” have achieved many scientific research results and formed a large number of products with independent intellectual property rights.
The company has always adhered to the development model of scientific research, new product development, and large-scale production. Its products cover precious metals (gold, silver, platinum, palladium, rhodium, iridium, etc.), rare metals (tantalum, niobium, titanium, hafnium, etc.) and high-temperature alloys , Widely used in nuclear power, superconductivity, aerospace, aviation, ships, electronics, lighting, chemicals, medical equipment and other fields.
Products
Tantalum and Tantalum Alloys
Tantalum (Ta), atomic number 73, atomic weight 180.9479, light gray metal, melting point 2996°C, boiling point 5425°C, specific gravity 16.6 g/cm3, body-centered cubic structure.
Tantalum has a high melting point, low vapor pressure, small expansion coefficient, good ductility and processing properties. Its oxide film is dense and has good dielectric properties. Therefore, the main use of tantalum is to make electrolytic capacitors; tantalum is also high-power A good material for electronic tube parts, which can be used to make anodes, grids and cathodes; tantalum has good high-temperature performance and can be used as supporting accessories, heat shields, heaters and heat sinks in high-temperature vacuum furnaces; tantalum is also an excellent superconducting material.
The chemical properties of tantalum are particularly stable and have good chemical corrosion resistance. It can only be dissolved in solutions such as sulfuric acid and strong alkali at high temperatures. The equipment made is widely used in chemical industries such as strong acid, bromine, and ammonia.
In addition, tantalum is also an important additive element for smelting super-strong steel, corrosion-resistant steel and heat-resistant steel. Tantalum carbide is a good cutting tool material, with great hardness, it can be used to replace the hardest alloy or diamond, made of turning tools and various drill bits. It can also be used as raw material for forging dies and anti-oxidant coatings. Tantalum also has the same stability and healing properties as human tissues, and has no irritation to the human body. It is widely used in orthopedics and brain surgery.
The company’s main products and applications:
Tantalum tape: Mainly used for superconducting barrier layer material;
Tantalum sheet: mainly used in electronics and textile industries;
Tantalum and TaW2.5 alloy: Widely used in the chemical industry, the corrosion resistance of tantalum-tungsten alloy is better than pure tantalum;
TaW10 alloy: Suitable for working environments such as high temperature, high pressure, corrosion resistance, etc. It is widely used in the fields of chemical industry, aerospace, atomic energy industry and high temperature components.
Niobium and Niobium Alloys
Niobium (Nb), atomic number 41, atomic weight 92.90638, off-white metal, melting point 2468°C, boiling point 4742°C, specific gravity 8.57 g/cm3, body-centered cubic structure.
Niobium and niobium alloy alloys have high strength at high temperatures, and have a relatively small density compared with other high-temperature and high-strength metals such as tungsten and tantalum. They are also easy to process and shape, so they are often used as key components of rocket engines.
Niobium has a high superconducting transition temperature. Superconducting materials such as niobium-titanium, niobium-tin, niobium-aluminum-germanium, etc., are used in addition to power transmission, power generation, manufacturing of superconducting magnets, and nuclear fusion control, as well as navigation devices and high-speed Electromagnetic propulsion equipment for diving vessels and superconducting high-speed trains.
Niobium has good corrosion resistance and can be used as heat exchanger, condenser, filter, stirrer, etc. Niobium carbide can be used alone or in combination with tungsten carbide and molybdenum carbide for hot forging dies, cutting tools, jet engine turbine blades, valves, tail skirts and rocket nozzle coatings.
Niobium-containing alloy steel has high strength, good toughness, and cold quenching resistance, and can be widely used in oil pipelines.
The company’s main products and applications:
Niobium sheet: mainly used for superconducting barrier layer material;
High temperature niobium alloy (niobium tungsten alloy, niobium hafnium alloy): Because of its good mechanical properties and high temperature stability, it is mainly used in the aerospace field (structure materials of rocket nozzles, etc.);
Niobium strip: LED backlight;
Niobium alloy tube: key component material of high pressure sodium lamp for electric light source.
High purity titanium: mainly used in shipbuilding, aviation, aerospace, chemical and other industries;
Nickel-based alloy target: material for thermal barrier coating of aircraft engine blades;
GH3600 alloy: It is an oxidation-resistant nickel-based high-temperature alloy suitable for bearing low loads below 1100°C, and is used as a functional material for aerospace engines;
Inconel718 alloy: used for the end plug of the stainless steel cladding tube of the nuclear power plant control rod and the compression spring of the control component;
Copper core Kovar composite wire: used in sealed relay industry
Stainless steel cladding tube: Mainly used as a cladding material for control rods in nuclear power plants.