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This section provides an overview for alumina fibers as well as their applications and principles. Also, please take a look at the list of 12 alumina fiber manufacturers and their company rankings. Here are the top-ranked alumina fiber companies as of December, 2024: 1.NICHIAS Corporation, 2.Unifrax I LLC, 3.Shandong Sinoshine Advanced Materials Co., Ltd.
Table of Contents
Alumina Fiber is a fibrous material composed mainly of alumina (aluminum oxide). It is used in various industrial fields because of its high resistance to high temperatures and refractoriness.
Alumina Fiber is made from alumina, which is spun at high temperatures and then calcined at high temperatures to form fibers. Generally, the fiber diameter is a few micrometers, and it is very light, refractory, and strong.
Because it is often used under high temperatures, it has excellent heat resistance and thermal insulation properties. It is also chemically stable and highly resistant to corrosion.
The main applications of alumina fiber are as follows:
Examples include glass furnaces, ceramic furnaces, blast furnaces for steel, cement kilns, refractory bricks and refractory cement.
Alumina Fiber is used as a refractory material because of its high temperature resistance and excellent refractoriness. Alumina fiber is also flexible and easy to process, so it can be cut and pasted according to its shape.
Examples include heat treatment furnaces, casting furnaces, paper machines, glass furnaces, heat insulators for molten metal, tanks, and pipelines.
Alumina Fiber has high thermal insulation performance and is used to reduce heat transfer at high temperatures. In addition, it is lightweight and flexible, and can be freely processed to adapt to a variety of shapes.
Examples include electric furnaces, transformers, capacitors, fuses, and wires.
Alumina Fiber is used as an electrical insulator because of its high voltage resistance and low conductivity. In addition, it has excellent durability and can withstand long-term use.
Examples include aircraft, automobiles, and rolling stock.
Alumina Fiber is used as a reinforcement material for mechanical parts because of its high strength, light weight, and durability. It also has excellent abrasion and corrosion resistance, thus extending the service life of mechanical parts.
Alumina Fiber has the following properties:
Alumina has an extremely high melting point of approximately 2,072°C, making it stable under high temperatures. In addition, Alumina Fiber has a dense crystalline structure and the fiber itself is very thin, so the fiber does not deform under high temperatures and retains its strength.
Alumina Fiber is extremely lightweight and strong. Alumina is a very hard material with a dense crystalline structure. It is hard and tough, and the fiber itself is very thin, making it possible to reduce weight.
Alumina Fiber is an excellent insulating material and can be made into a fiber and still retain its insulating properties. It is an ionic crystalline material with excellent insulating properties.
An ionic crystalline material is a material with a crystalline structure consisting of a regular arrangement of ions, consisting of cations and anions.
Ions are electrically charged atoms or molecules; cations have a positive electrical charge and anions have a negative electrical charge. Ion-crystalline materials are usually composed of metal and non-metal ions.
Ion-crystalline materials have high crystallinity and strong bonding forces, resulting in properties such as high hardness and melting point, electrical insulation, and thermal conductivity. They are also chemically stable and resistant to acids and alkalis.
Alumina is a very chemically stable material and has excellent corrosion resistance. Alumina fiber likewise has excellent resistance to oxidation and corrosion.
The chemical stability of alumina is due to its crystal structure. Alumina is a compound of aluminum and oxygen, and its crystal structure belongs to the triclinic system. The tricrystalline structure is very rigid and is characterized by a high resistance to chemical attack.
In addition, alumina has a very high melting point and is chemically stable at high temperatures, thus maintaining corrosion resistance even in high temperature environments.
The tricrystalline crystal structure of alumina is one of the most densely packed structures, so the bonds between atoms are very strong and alumina is a hard material. Therefore, alumina is highly resistant to mechanical loading.
In addition, because alumina has a very dense crystalline structure, there are few micro defects on its surface, making it highly resistant to friction and abrasion. Therefore, alumina fiber is characterized by its high resistance to friction and abrasion between fibers.
Alumina Fiber is very hard and its diameter is extremely fine, making it difficult to cut and process. Special techniques and equipment are required to process alumina fibers because cutting shortens the fibers. Also, because the fibers are very fine, care must be taken when handling them. The fibers may scatter when processed.
Alumina Fiber tends to become brittle when exposed to high temperatures for long periods of time. The reason is that the fiber oxidizes in a high-temperature environment, resulting in an increase in fine crystal particles, which makes the fiber brittle. Therefore, care must be taken when using alumina fiber depending on the environment in which it is used. For example, the fiber should not be exposed to high temperatures for long periods of time, a coating should be applied to protect the fiber, and regular inspection and maintenance should be performed.
*Including some distributors, etc.
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Unifrax I LLC, established in 1942 and headquartered in Tonawanda, New York, is a manufacturer of specialty fiber products and inorganic materials. The company specializes in developing and manufacturing solutions for high-temperature insulation, thermal management, and fire protection. Its main products include ceramic fiber blankets, boards, furnaces, modules, and refractory products. These materials find applications in industries such as aerospace, battery and energy storage, power generation, petrochemicals, and manufacturing. The company’s manufacturing facilities have achieved current ISO certifications and comply with all appropriate quality standards.
ZIRCAR Ceramics, Inc., founded in 1974 and based in Florida, United States of America, is a manufacturer of high-temperature insulation, heaters, and refractory products. The company crafts rigid alumina products, blankers and mats, as well as cement. It also fabricates cast house consumables, fibers, furnace accessories, and castables. One of its variants of rigid alumina products is utility-grade hot face insulation for use in kilns, furnaces, and other thermal process systems operating to temperatures of 1800°C.
American Elements was founded in 1997 in California and currently has research and production facilities in Utah, Mexico, China, and the United Kingdom. AE manufactures and distributes advanced materials from a catalog of over 30,000 products for bulk industrial use as well as small scale laboratory use. AE also provides testing and analyses services including spectroscopy along with structural, thermal, and electrical analyses. AE holds sustainable development as a core corporate value and is committed to work to protect the health of the environment.
TESPE SRL is an Italian industrial gaskets and technical textiles manufacturer that was established in Almenno San Bartolomeo, Bergamo in 1982. The company produces a range of gaskets for thermal insulation and static seals. It also offers technical textiles such as braids, insulating cushions, and heavy duty tapes for high temperature environments. The company’s products are commonly used in process control and industrial machinery maintenance operations. It mainly serves clients in the construction, energy, and transportation industries.
Tomoegawa, established in 1914 and headquartered in Tokyo, Japan, is a manufacturer and supplier, specializing in providing solutions in the field of electronic materials, used in IT and the home electronics industry. The company's product range includes electronic products, highly-functional sheets, specialty paper, fine particles, and display products. These products can be applied in electrical insulating, paper-making technology, telecommunication paper, powder technology, and coating technology. They hold certifications such as ISO9001 and ISO14001.
Nichias Corporation, founded in 1896 and headquartered in Tokyo, Japan, is a manufacturer and seller of building materials, auto parts, advanced, industrial, and energy products. In 1938, it became the first Japanese company to manufacture rock wool products, and in 1952, it began making spiral wound gaskets. It aims for carbon neutrality by 2050 and is engaged in recycling rock wool product scraps from its plants and construction sites. Its manufacturing establishments in Japan and overseas have ISO 14001, and its product portfolio includes sealing materials, fluoro resin products, heat insulators, calcium silicate boards, and rubber composite gaskets.
Denka Company Limited, founded in 1915, is a Japanese chemical manufacturer headquartered in Chuo City, Tokyo. The company offers a range of products made with the technology of fine ceramics and organic fine chemicals, such as adhesives, fluorescent materials, functional films, and heat dissipation materials. They also produce automotive parts, belts, hoses, electric wires and cables, and rubber gloves using chloroprene rubber. Additionally, Denka provides products made of polymer solutions, such as food packaging materials, building materials, and electric home appliances. In 2022, Denka launched the New Business Development to develop products and technologies in ICT and energy, healthcare, and sustainable living.
Luyang Energy-Saving Materials Co., Ltd., founded in Davidson, Zibo, Shandong, in 1984 is a manufacturer of ceramic fibers, soluble fibers, alumina fibers, Rockwool fibers, and insulating firebricks. The company's product portfolio includes Firebricks and Mortars, Microporous Boards, Monolithic Modules, Marine and Offshore Insulations and Blockboard Rock Wool Materials that are used for floating floors, bathrooms, and fireproof doors. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building.
A&A Material Corporation, established in 2000 and based in Kanagawa, Japan, is a manufacturer of building and industrial materials. The company specializes in producing and selling noncombustible building materials, including boards for manufacturing, decoration, and construction. It offers advanced thermal control technology, emphasizing noncombustible and flame-resistant products for safety in living spaces. The company also provides industrial solutions like alumina fiber and heat-resistant cloth, used for thermal insulation, air conditioning, and soundproofing. The company also provides services like design and implementation of steel fireproof coating work, heat insulation and fire resistance construction.
Shandong Sinoshine Advanced Materials Co., Ltd. established in 2008 and based in Zibo City, Shandong, China, is a manufacturer and supplier of alumina ceramics. The company's product range includes Alumina ceramic, Zirconia ceramic, SiC ceramic, Ceramic Fiber, and machinery for porcelain. These products are applied in industries like ceramics, steels, minerals, electricity, petrochemicals, chemicals, medicals, and thermal & power plants. The company primarily serves the Clay and Refractory Products Manufacturing sector. Its services focus on the production of new materials, manufacturing of refractory materials, crafting of industrial ceramics, and provision of machinery for porcelain.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Unifrax I LLC |
27.3%
|
| 2 | NICHIAS Corporation |
21.2%
|
| 3 | Shandong Sinoshine Advanced Materials Co., Ltd |
12.1%
|
| 4 | TESPE |
6.1%
|
| 5 | ZIRCAR Ceramics, Inc. |
6.1%
|
| 6 | American Elements |
6.1%
|
| 7 | Denka Company Limited |
6.1%
|
| 8 | TOMOEGAWA |
6.1%
|
| 9 | Greenergy Refractory and Insulation Material Co., Ltd |
3.0%
|
| 10 | Luyang Energy-Saving Materials Co., Ltd. |
3.0%
|
Derivation Method
The ranking is calculated based on the click share within the alumina fiber page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
5 | 41.7% |
|
United States of America
|
3 | 25.0% |
|
China
|
3 | 25.0% |
|
Italy
|
1 | 8.3% |
