We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for alumina.
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alumina Product List and Ranking from 24 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

alumina Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. アルテオ・ジャパン Tokyo//Other manufacturing
  2. 共立マテリアル Aichi//Ceramics
  3. JAPAN FINE CERAMICS CO., LTD. （JFC） Tokyo Sales Office Tokyo//Ceramics
  4. 4 null/null
  5. 5 セライズ CE-RISE Co.,Ltd. 新潟事業所【上越】 Niigata//Ceramics
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alumina Product ranking

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. Alteo Japan Co., Ltd. Business Introduction アルテオ・ジャパン
  2. ICA Manufactured Alumina 【Authorized Dealer】 共立マテリアル
  3. Calcined alumina
  4. Alumina (Al2O3 99.5%, 99.8%, 99.9%) JAPAN FINE CERAMICS CO., LTD. （JFC） Tokyo Sales Office
  5. 4 Which is better, alumina or steatite? セライズ CE-RISE Co.,Ltd. 新潟事業所【上越】

alumina Product List

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Introducing everything from ultra-high purity 99.99% to cost-reduced 99% alumina.

Introducing everything from ultra-high purity 99.99% to cost-reduced 99% alumina.

A wide range of products from 99.99% alumina that meets strict purity requirements to 99% overseas alumina that ensures cost reduction.

We offer various grades of alumina ceramics at our company. - High purity 99.99% - High purity 99.99% translucent - Purity 99.0% - Purity 99.5% alumina for machining, available in sizes up to Φ600 - Purity 99.5% alumina for machining with short delivery times - Purity 99% overseas alumina, suitable for cost-effective mass production, also compatible with pure water washing - Sapphire In the semiconductor/display manufacturing equipment sector, various specification requirements are demanded. There are numerous grades of alumina, ranging from high-purity high-end products to cost-focused alumina that requires insulation properties and mechanical characteristics with only a certain level of high purity. We can meet all such diverse alumina requirements. While large items over one meter fall under the domain of specialized manufacturers, we have alumina for machining in stock up to Φ600, allowing us to provide according to requested delivery times. We respond to various needs with one-stop solutions, from pure water washing to semiconductor-grade precision cleaning, mirror finishes, and hand wrapping. Please feel free to consult with us first.

  • Fine Ceramics

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Reinforced alumina

Reinforced alumina

Add zirconia to alumina! Suitable for parts that require toughness.

We would like to introduce our "Reinforced Alumina." By adding zirconia to alumina and sintering it densely, it is suitable for areas that would wear out with regular alumina and for parts that require toughness. It has high mechanical strength, heat dissipation, and fracture toughness, making it particularly suitable for processed products and mass-produced items using molds for applications such as impact-resistant and wear-resistant components. [Features] - High mechanical strength, heat dissipation, and fracture toughness - Suitable for processed products and mass-produced items using molds for applications such as impact-resistant and wear-resistant components *For more details, please refer to the related links or feel free to contact us.

  • Fine Ceramics

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Fine ceramics "Alumina" for chemical-resistant and heat-resistant products.

Fine ceramics "Alumina" for chemical-resistant and heat-resistant products.

Alumina is a fine ceramic that excels in chemical resistance and heat resistance. We can handle everything from raw material procurement to manufacturing, accommodating everything from a single prototype to mass production!

Fine ceramics "Alumina" is a representative fine ceramic material that is widely used. Our company conducts consistent manufacturing from material procurement to production at the raw material factory. We respond to requests such as "The machine parts currently in use are discontinued and cannot be procured" and "I want it made in shapes, strengths, and specifications that are not possible with existing products." Fine ceramics "Alumina" excels in mechanical strength, electrical insulation, heat resistance, wear resistance, and corrosion resistance, and is used in a wide range of fields including machine parts and electronic device components. High precision through grinding and polishing is also possible. Examples of applications: ■ Automotive parts ■ Industrial equipment ■ Vacuum devices ■ Semiconductor manufacturing equipment ■ Scientific instruments ■ Infrastructure facilities, etc. *For more details, please download the materials or contact us.

  • Fine Ceramics

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[Daejoo・KC] Alumina

[Daejoo・KC] Alumina

Increase in demand in Japan and the United States (Japan 44%, United States 21%)

Alumina - High temperature stability and excellent electrical properties, adopted as a coating for secondary battery separator films and as a heat dissipation material. - Increased demand in Japan and the United States (44% in Japan, 21% in the United States).

  • Secondary Cells/Batteries

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High durability "saya and crucible" made of high-purity alumina and magnesia.

High durability "saya and crucible" made of high-purity alumina and magnesia.

Outstanding durability due to chemical resistance and thermal shock resistance! A long-lasting "saya-rutsubo."

The "Saya Crucible" from Maruwai Yano Ceramics achieves exceptional durability, with alumina at 99.7% and magnesia at 99%. If you are troubled by breakage or wear due to heat or chemical reactions, please try our free samples. 【Reasons to Choose Maruwai】 ◆ High purity with excellent heat resistance and thermal shock resistance ◆ Outstanding durability ◆ Available in sizes from large to small ◆ We also offer other shapes such as boxes and beakers. 【Are you facing these issues?】 ◎ Want to reduce the hassle of frequently replacing equipment... ◎ It's a problem if the Saya crucible breaks and spills the sample... ◎ Liquid leakage (sample) negatively affects the furnace... → Maruwai Yano Ceramics can solve these problems for you! Please download our catalog or contact us directly. ★ We are also offering free samples.

  • Ceramics

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[Explanation] Characteristics of High Purity Dense Alumina

[Explanation] Characteristics of High Purity Dense Alumina

Crystals of corundum (α-Al₂O₃), like sapphires and rubies.

High-purity dense alumina products are widely known as the most commonly distributed fine ceramics, and we have a large standard inventory that has received positive feedback. Even just from our in-house manufacturing, we offer various products including PTO (extruded materials), PTC (pressed/CIP materials), PSO (cast materials), and PS3N (cast materials). 【Features】 ○ Crystalline corundum (α-Al2O3), similar to sapphire and ruby ○ Excellent insulation resistance at high temperatures and good high-frequency characteristics, making it widely used as components in various heat treatment processes, solar cells, liquid crystal displays, and semiconductor manufacturing equipment. *For more details, please contact us.

  • Other machine elements

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Abrasive material White Alundum WA White Fused Alumina

Abrasive material White Alundum WA White Fused Alumina

Long-lasting cutting ability! High-purity alumina abrasive with low impurities.

"White fused alumina" is a high-purity alumina abrasive that is harder than "brown fused alumina" and contains fewer impurities. Although the abrasive may break, this allows for the regeneration of edges, maintaining cutting ability over extended periods. [Features] ■ High hardness and high purity alumina ■ Abrasive breaks and edges regenerate ■ Long-lasting cutting ability *For more details, please refer to the PDF document or feel free to contact us.

  • Other abrasives

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Ceramics/Alumina

Ceramics/Alumina

San Ken Access Co., Ltd. responds to development needs with advanced technological capabilities and the latest information power.

Ceramics/Alumina refers to white or milky-white ceramics that have been applied to electrical components early on due to their excellent electrical insulation properties. They are widely used and are the most affordable material among fine ceramics. The high-purity type has high mechanical strength, excellent corrosion resistance, and outstanding plasma resistance, making it suitable for components in CVD equipment and etching equipment. [Applications] - High-temperature kiln tools, electronic component kiln tools (setters, boxes, base plates, supports) - High-temperature furnace materials (inner lining bricks, rail bricks, rollers) *For more details, please download the PDF or feel free to contact us.

  • Industrial Furnace

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Plate-shaped alumina / Polyhedral alumina | CeramNex

Plate-shaped alumina / Polyhedral alumina | CeramNex

Replacing existing alumina improves thermal conductivity by up to 1.3 times! These are special-shaped alumina fillers such as plate-like and polyhedral forms.

"CeramNex" is an alumina filler formed and controlled into distinctive shapes using DIC's unique inorganic oxide synthesis technology. It offers products in unique shapes such as plate-like and polyhedral forms. These alumina fillers possess high crystallinity, and by selecting shapes suitable for specific applications and adding them to the matrix, improvements in thermal conductivity, rigidity, and wear resistance can be expected. For example, polyhedral alumina is effective in enhancing thermal conductivity. Its 14-faced shape allows the fillers to contact each other on surfaces, making heat transfer more efficient than with spherical shapes that contact at points. This results in a heat dissipation improvement of up to 1.3 times. On the other hand, plate-like alumina features "high crystallinity" and a high aspect ratio, which is its most significant characteristic. Utilizing this feature, interesting effects on wear resistance have also been observed. When conventional alumina is added to resins or coatings, there is a significant issue of damage to the counterpart material. However, CeramNex in a plate-like shape has a smooth surface, greatly reducing damage to the counterpart material. (Replacing spherical alumina reduces wear on the counterpart material by 60%)

  • 多面体アルミナ　写真.png
  • Engineering Plastics
  • Fine Ceramics
  • Composite Materials

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Alteo Japan Co., Ltd. Business Introduction

Alteo Japan Co., Ltd. Business Introduction

We offer a wide range of alumina products!

Alteo Japan Co., Ltd. is the Japanese branch of Alteo Gardanne. At Alteo, we produce 600,000 tons of alumina through the Bayer process. We manufacture a wide range of alumina products, including "normal soda alumina," which has a uniform and strictly controlled crystal size, "low soda alumina," which is suitable for ceramic body formulations, and "ultra-fine low soda alumina," which is ideal for ensuring high firing density. Please feel free to contact us if you have any inquiries. [Market and Applications] ■ Technical Ceramics ■ Refractories ■ Flame Retardants ■ Chemicals ■ Liquid Crystal Glass, etc. *For more details, please refer to our catalog or feel free to contact us.

  • Ceramics
  • Glass
  • Other polymer materials

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High purity dense alumina

High purity dense alumina

Excellent heat resistance! We have PTO, PTC, PSO, and PS3N, all manufactured in-house, to accommodate various products.

Fujiko Co., Ltd. handles "high-purity dense alumina." Alumina is a crystal of corundum (α-Al2O3), similar to sapphire and ruby. It is widely known as a fine ceramic with a high circulation volume, and our company also has a large standard inventory that has received favorable reviews. Additionally, we manufacture various products in-house, including PTO, PTC, PSO, and PS3N, to meet a variety of needs. 【Features】 ■ Excellent insulation resistance at high temperatures ■ Good high-frequency characteristics ■ High hardness and excellent wear resistance ■ High mechanical strength ■ Excellent heat resistance, usable in the range of 1,700 to 1,800°C *For more details, please refer to the PDF materials or feel free to contact us.

  • Composite Materials

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Korean-made recycled alumina (aluminum oxide)

Korean-made recycled alumina (aluminum oxide)

This is alumina recovered from waste artificial marble through special technology. It contributes to waste reduction and is gaining attention from the perspectives of SDGs and ESG.

* We are recovering alumina and MMA (methyl methacrylate) from artificial marble using patented technology. * The purity reference value is over 97%. (For other impurity items, please contact us.) Please feel free to reach out to us. Also, please visit our inorganic fine chemicals division website.

  • Ceramics
  • aluminum

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China-made high-purity alumina (aluminum oxide)

China-made high-purity alumina (aluminum oxide)

Purity: High purity of 4N or higher, submicron, and with a sharp particle size distribution of alumina.

* Numerous adoption records for abrasives from Japan, South Korea, Europe, and the United States for heat-resistant separators used in lithium batteries. * For alumina used in lithium batteries in China, we have captured the majority of the market share within China. * We can accommodate requests for high purity of 5N or more, ultra-fine particles, and other specifications. Please also visit our inorganic fine materials division website.

  • Fine Ceramics
  • Lithium-ion battery
  • Other semiconductors

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Indonesian-made alumina (aluminum oxide)

Indonesian-made alumina (aluminum oxide)

The parent company of the manufacturer owns a bauxite mine in Kalimantan, Indonesia.

* The auxiliary materials containing caustic soda are sourced from within Indonesia. The supply chain is fully completed within Indonesia, 100%. * We have a production capacity of 300,000 MT/year (in terms of alumina), providing ample supply capacity. * We offer a variety of grades and can propose the optimal grade according to your needs. * There are also low-soda grades available. Please also visit our inorganic fine chemicals division website.

  • Ceramics
  • Lithium-ion battery

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Korean-made high-purity alumina (aluminum oxide)

Korean-made high-purity alumina (aluminum oxide)

Purity: High purity of 4N or higher, submicron, and with a sharp particle size distribution of alumina.

* Numerous adoption results for Korean abrasives used for heat-resistant separators for lithium batteries. * We can provide small particle size products such as 300nm and 500nm. * We can accommodate requests for high purity of 5N or higher, as well as ultrafine particles. Please also visit our inorganic fine materials department website.

  • Fine Ceramics
  • Lithium-ion battery
  • Other semiconductors

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