Refractory / High Temperature Materials Aluminum Oxide and Alumina Ceramics

Innovacera offers a complete line of kiln furniture, kiln components and accessories, everything from dense to low mass products to meet every application need. Our complete line of kiln components will provide a solution for every rebuild project along with applications engineering assistance for... [See More]

• Applications: Refractory or High Temperature Insulation; Abrasives, ceramics or glass manufacturing
• Shape / Form: Custom Shape; KilnFurniture

• Alumina / Aluminate Type: Alumina

Alumina ceramic furnace tubes are used to contain and protect heating elements and samples processed in the furnace. In addition, they are used to control the atmosphere within the furnace by preventing air from entering or leaving the furnace. [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Tube

The ceramics end effector with High functional, high temperature durability, high wear resistance is used for a long time in a high temperature environment without causing damage, and the wear of the material to be moved is also reduced to a minimum, effectively controlling the diffusion of impure... [See More]

• Applications: Refractory or High Temperature Insulation; Semiconductor
• Shape / Form: Custom Shape

• Alumina / Aluminate Type: Alumina

Alumina ceramic plates are well-known for their hardness, wear resistance, and electrical insulation. These plates have numerous applications across various sectors, including the electronics, metallurgy, medical, semiconductor, and armor systems. Unipretec offers ceramic plates with different... [See More]

• Applications: Refractory or High Temperature Insulation; Wear resistant parts or tooling; Chemical or material processing; Corrosion resistant; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Plate / Board

Alumina ceramic rods have high hardness and excellent wear resistance, making them less susceptible to damage from friction or usage. Additionally, they can maintain their superior mechanical and insulating properties at high temperatures, and are chemically inert, meaning they are not corroded by... [See More]

• Applications: Refractory or High Temperature Insulation; Wear resistant parts or tooling; Chemical or material processing; Corrosion resistant; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Immersion Tube or Sheath

Alumina ceramic thermocouple protection tubes are used to protect thermocouples from severe conditions. It serves as a barrier between the thermocouple and the environment, shielding the thermocouple from contamination and damage. It also helps to maintain accurate temperature measurements by... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Tube

Alumina ceramic tubes are made of high-purity alumina materials that have exceptional characteristics like high temperature resistance, wear resistance, and chemical stability, etc., and are extensively utilized in a wide range of industries. [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Tube

Alumina crucibles are used in laboratories as containers for chemical compounds or metal refractories at extremely high temperatures. Their high-temperature stability, chemical inertness, and mechanical strength have made them essential vessels for use in various industries, laboratory research, and... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Max Use Temperature: 1500 to 1650

Unipretec manufactures alumina rod with aluminium oxide purity of 95%, 99%, and 99.8%. Due to their remarkable characteristics, such as their high-temperature resistance, mechanical strength, electrical insulation, and chemical inertness, alumina rods are an essential component in a variety of... [See More]

• Applications: Refractory or High Temperature Insulation; Wear resistant parts or tooling; Chemical or material processing; Corrosion resistant; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Immersion Tube or Sheath

Alumina sheet is manufactured of 95%, 96%, 99%, or 99.8% high-purity alumina. It has a wide range of advantageous properties, making it a versatile ceramic material for a variety of industrial applications. Due to their resistance to high temperatures, superior mechanical strength, electrical... [See More]

• Applications: Optical Grade; Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; Electronics or semiconductors; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Plate / Board

Alumina tube is a non-porous ceramic tube that is formed of 95%, 99%, or 99.8% alumna material. As a result of its remarkable thermal, mechanical, and chemical characteristics, it is a preferred option in various sectors. Its resistance to high temperatures, abrasion, and corrosion, as well as its... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Corrosion resistant; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Tube

Aluminum oxide ceramic is a high-performance ceramic material, also known as alumina ceramic material. Composed of high-purity alumina powder, this non-metallic material is manufactured via pressing, molding, sintering, and other processes. According to the alumina content, it is classified as 92... [See More]

• Applications: Refractory or High Temperature Insulation; Bioceramics; Chemical or material processing; Corrosion resistant; Electronics or semiconductors; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Max Use Temperature: 1200 to 1650

Ceramic structural balls are typically used in bearings and have a supporting function. Ceramic bearing balls are a crucial component of deep groove ball bearings, angular contact bearings, self-aligning ball bearings, thrust ball bearings, etc. [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Density: 3.2 to 6

Ceramic components are manufactured of ceramic materials, which are an extensive family of inorganic, non-metallic compounds typically consisting of metal, non-metal, and metalloid elements. The exceptional properties exhibited by ceramics, such as their high hardness, low electrical conductivity,... [See More]

• Applications: Battery / Fuel Cell; Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Wear resistant parts or tooling; Abrasion Resistant; Armor / Ballistic Protection; Bioceramics; Corrosion resistant; Electronics or semiconductors; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina

Ceramic setters, also known as kiln setters, are devices used in the manufacture of powders, ceramic and metal parts within a kiln during the firing process. Typically, they are made of ceramic materials that can endure high temperatures and thermal cycles within the kiln. They are engineered to... [See More]

• Applications: Battery / Fuel Cell; Refractory or High Temperature Insulation; Chemical or material processing; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: KilnFurniture

Ceramic tubes are mainly composed of alumina, zirconia, silicon nitride and other ceramics. They provide excellent high temperature resistance, mechanical strength, electrical insulation, wear and corrosion resistance, etc., making them indispensable components in numerous industrial applications. [See More]

• Applications: Refractory or High Temperature Insulation; Wear resistant parts or tooling; Chemical or material processing; Corrosion resistant; Electronics or semiconductors; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina
• Shape / Form: Tube

Ceramic washers are components designed specifically for applications requiring electrical insulation, corrosion resistance, and high-temperature resistance. They are classified as flat washers, shoulder washers, hat washers, etc. and generally have a central hole. Their shape can be square, round,... [See More]

• Applications: Refractory or High Temperature Insulation; Wear resistant parts or tooling; Bioceramics; Chemical or material processing; Corrosion resistant; Electronics or semiconductors; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina

Ceramic washers are made of ceramic materials like alumina or zirconia. These washers are manufactured using a variety of techniques, including pressing or slip casting, and then high-precision machining, to satisfy specific requirements. They typically have electrical insulation, thermal... [See More]

• Applications: Refractory or High Temperature Insulation; Corrosion resistant; Electronics or semiconductors; HV / Electrical
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina

Ceramic wire drawing tools are manufactured from high-quality ceramic materials that have exceptional wear resistance and can withstand high pressures and temperatures during the wire drawing process without wear out or degradation. [See More]

• Applications: Refractory or High Temperature Insulation; Wear resistant parts or tooling; Corrosion resistant
• Bond & Processing: Sintered / Fired

• Alumina / Aluminate Type: Alumina

San Jose Delta maintains an in-house inventory of most grades of alumina ceramics as BARS-RODS-TUBES and SHEETS. The availability of fired “grinding stock ” ceramic makes the production of small quantity and prototype orders less costly and offers shorter lead-times. For larger... [See More]

• Applications: Refractory or High Temperature Insulation; Wear resistant parts or tooling; Abrasion Resistant; Dielectric; Electronics or semiconductors; HV / Electrical
• Shape / Form: BarStock; Custom Shape; Rod; Tube

• Alumina / Aluminate Type: Alumina
• Max Use Temperature: 1650

CeramSource, Inc.  offers a complete line of TaoFil ® ceramic foam filters for different kinds of metallurgical applications. The reticular shape of the foam filter provides a thorough and deep filtration to remove impurities in molten metal stream. ToaFil ceramic foam filters have... [See More]

• Applications: Refractory or High Temperature Insulation; Foundry / Metal Processing
• Shape / Form: Filter, Diffuser or Sparger

• Alumina / Aluminate Type: Alumina
• Max Use Temperature: 1093 to 1649

ZRCI Refractory Sheet Type RS-101 is a ceramic fiber reinforced structural alumina product with useful properties to 2300°F (1260°C). It retains strength and utility to levels far exceeding maximum use temperatures of reinforced plastics and asbestos-cement replacements. Type RS-101 not only makes... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Thermal Applications
• Composition: Al_2O_3 , SiO_2 , Other Metal Oxides

• Alumina / Aluminate Type: Alumina
• Shape / Form: Tube

Range of filters specifically designed for the filtration of steel. Apogee's pressed filters have a consistent and regular structure meaning that each filter is virtually identical to the next. Therefore each and every filter will give the same flow rate and capacity. Our pressed filters offer an... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Foundry / Metal Processing
• Shape / Form: Filter, Diffuser or Sparger

• Alumina / Aluminate Type: Alumina

High fired strength, dense ceramics [See More]

• Applications: Refractory or High Temperature Insulation; Fiberoptics, Radiant Heaters, Temp Probe; Abrasives, ceramics or glass manufacturing; Chemical or material processing; Corrosion resistant; HV / Electrical
• Max Use Temperature: 1649

• Alumina / Aluminate Type: Alumina
• CTE: 7.20E6

OMEGATITE ®650 is an alloy of silicon nitride and aluminum oxide. This superior refractory material has the combined properties of silicon nitride (high strength, hardness, fracture toughness, and low thermal expansion) and aluminum oxide (corrosion resistance, chemically inert, high temperature... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Molten Metal Measuring; Abrasion Resistant; Corrosion resistant; Dielectric; Foundry / Metal Processing
• Shape / Form: Tube

• Alumina / Aluminate Type: Alumina
• Length: 5.91 to 23.62

Accuratus maintains an inventory of standard extruded and cast aluminum oxide, mullite and sialon shapes for fast delivery requirements. These are low cost, quality rods and tubes that can be quickly cut to precision lengths. (See Mullite Sizes, Aluminum Oxide Sizes and Sialon Sizes). Accuratus will... [See More]

• Applications: Refractory or High Temperature Insulation; Abrasion Resistant; Armor / Ballistic Protection; Dielectric; Electronics or semiconductors; HV / Electrical
• Composition: 94% - 99.5% Al2O3

• Alumina / Aluminate Type: Alumina
• Shape / Form: Rod

RATH ’s refractory bricks are stable up to 1800 °C and can be used in almost all areas of industrial furnace construction. Typical applications. For any application, optimum durability can be achieved by a suitable combination of raw materials. The dense bricks are usually dry-pressed or... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Abrasives, ceramics or glass manufacturing; Chemical or material processing; Foundry / Metal Processing
• Shape / Form: Block

• Alumina / Aluminate Type: Alumina; Silicon Carbide
• Max Use Temperature: ? to 1800

High temperature insulating fire bricks offers a unique combination of insulating properties along with load bearing ability.  The temperature ranges are from 2000 º F to 3000 º F, is where IFBs  really shine. It ™s low thermal conductivity are as low as ceramic fiber based... [See More]

• Applications: Refractory or High Temperature Insulation; Abrasives, ceramics or glass manufacturing; Foundry / Metal Processing
• Shape / Form: Block

• Alumina / Aluminate Type: Alumina
• Max Use Temperature: 1260 to 1649

ZRCI Refractory Sheet Type RS-201 and RS-202 are fiber reinforced ceramic laminate with useful properties to 1260°C (2300°F). These high temperature products offer high strength, moderate thermal conductivity and excellent electrical insulation. They retain their strength and utility to levels far... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Thermal Applications
• Composition: Al_2O_3 , SiO_2 , CaO, B_2O_3, MgO Other Metal Oxides

• Alumina / Aluminate Type: Alumina
• Shape / Form: Tube

Ceramic plaques engineered for the ideal balance of thermal shock resistance, quick heat response, high quality and mechanical strength. Our tiles are non-corroding, rust-resistant and will not split like other conventional steel and tube burners. The unique design is so durable and long-lasting... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Foundry / Metal Processing
• Shape / Form: Custom Shape (optional feature); Filter, Diffuser or Sparger

• Alumina / Aluminate Type: Alumina

CeramSource can provide customized design and material selections, supply kinds of precast shapes for different furnaces, such as holding and melting furnaces for aluminum industry; supply products with complicated shapes, like delta roof for electric arc furnace, iron runner trough, purging plugs,... [See More]

• Applications: Refractory or High Temperature Insulation
• Max Use Temperature: 816

• Alumina / Aluminate Type: Alumina
• MOR / Flexural Strength: 1450 to 1740

ZIRCAR Refractory Sheet Type RS-100 is a ceramic fiber reinforced structural alumina composite material with useful properties to 1260°C (2300°F). It has exceptional flexural and compressive strengths in the range of high temperature reinforced plastics such as G-7 and G-10 laminates and retains... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Thermal Applications; HV / Electrical
• Composition: Al_2O_3 , SiO_2 , Other Metal Oxides

• Alumina / Aluminate Type: Alumina
• Shape / Form: Custom Shape (optional feature); Plate / Board

Apogee technical ceramics offer exceptional ability to withstand continuous, repetitive cycle for applications requiring strength, resistance to wear and thermal stability. Choose from standard, custom-engineered and built-to-suit designs. Whatever your requirements, Apogee Ceramics Inc. will work... [See More]

• Applications: Refractory or High Temperature Insulation; Structural; Wear resistant parts or tooling; Abrasion Resistant; Chemical or material processing; Foundry / Metal Processing
• Shape / Form: BarStock; Custom Shape; Roller / Roll

• Alumina / Aluminate Type: Alumina; Ca Aluminate

ZRCI Refractory Sheet Type RS-200 is a fiber-reinforced ceramic laminate with useful properties to 1260°C (2300°F). This high temperature product offers high strength, moderate thermal conductivity and excellent electrical insulation. It retains its strength and utility to levels far exceeding... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Thermal Applications
• Composition: Al_2O_3 , SiO_2 , CaO, B_2O_3, MgO Other Metal Oxides

• Alumina / Aluminate Type: Alumina
• Shape / Form: Plate / Board

We offer a range of foam filters. These filters are a standard filtering solution within the steel foundry industry and offer a good balance of filtration performance, flow modification and strength. Our partially stabilized foam filters offer multiple benefits.The benefits include excellent... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Foundry / Metal Processing
• Shape / Form: Filter, Diffuser or Sparger

• Alumina / Aluminate Type: Alumina

ZRCI Refractory Sheet Type RS-99-60 and RS-99-45 are comprised of 99% alumina. These "All-Alumina" materials are strong, uniform, rigid, refractory structure composed of alpha alumina fibers and high purity inorganic binders. Type RS-99-60 and RS-99-45 have a high purity alumina bond making them... [See More]

• Applications: Refractory or High Temperature Insulation; Thermal Insulation or Fire Proofing Material; Thermal Applications; HV / Electrical
• Composition: Al_2O_3 , SiO_2

• Alumina / Aluminate Type: Alumina
• Shape / Form: Custom Shape (optional feature); Plate / Board

Our matrix filters have been developed to overcome shortcomings in existing filtration technology. Cellular filters have a regular structure and offer the foundry predictability with pour rates and capacity. However, the filtration efficiency and flow modification ability of cellular filters are not... [See More]

• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Foundry / Metal Processing
• Shape / Form: Filter, Diffuser or Sparger

• Alumina / Aluminate Type: Alumina