Alumina / Aluminum Oxide Thermal and Refractory Ceramics

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]

• Material Type: Alumina
• Max Use Temperature: 1500 to 1650

• Shape / Form: Plate / Board
• Density: 3.6 to 3.95

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]

• Material Type: Alumina
• Max Use Temperature: 1500 to 1650

• Shape / Form: Tube
• Density: 3.6 to 3.95

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]

• Material Type: Alumina
• Max Use Temperature: 1500 to 1650

• Shape / Form: Tube
• Density: 3.6 to 3.95

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]

• Material Type: Alumina
• Density: 3.6 to 3.95

• Max Use Temperature: 1500 to 1650
• Applications: Refractory or High Temperature Insulation; Chemical or material processing; Corrosion resistant

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]

• Material Type: Alumina
• Max Use Temperature: 1500 to 1650

• Shape / Form: Tube
• Density: 3.6 to 3.95

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]

• Material Type: Alumina; Boron Nitride; SpecialtyMaterial
• Applications: Battery / Fuel Cell; Refractory or High Temperature Insulation; Chemical or material processing; HV / Electrical

• Shape / Form: KilnFurniture
• Performance Features: Porous material

Durafrax ™ 2000, Saint-Gobain's ultra fine-grain, high grade alumina, is made from exceptionallly pure, uniformly controlled alpha aluminum oxide and is engineered to be one of the best wear materials available for fine particle abrasion. Durafrax ™ 2000 is our most economical and... [See More]

• Material Type: Alumina
• Max Use Temperature: 1250

• Shape / Form: Tile; Powder, Grain or Grog; Custom Shape
• Thermal Conductivity: 18

Creating extruded brick takes clays ground in a dry pan, mixed (wet or dry) brought to the desired consistency then extruded through the die of an auger machine. Air is removed from the clay before extrusion creating columns which are cut into bricks by a wire. After the brick is repressed it enters... [See More]

• Material Type: Alumina

• Shape / Form: Custom Shape

High fired strength, dense ceramics [See More]

• Material Type: Alumina
• CTE: 7.20E6

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

We have expanded our production of custom sized tubes! Smaller diameter tubes available in finished lengths up to 72". 6" diameter tubes up to 60". Smaller lengths up to 12" diameter!. Extruded Ceramic Tubes. Plain, Fluted, Flanged, Threaded, Multi-hole, Custom shapes. Up to 48" in length. 11" OD... [See More]

• Material Type: Alumina
• Length: 48 to 72

• Shape / Form: Tube; Hollow Stock (Tube, Pipe, Column)
• Width / Diameter: 6 to 12

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Custom Shape

Saint-Gobain NorPro provides a range of formed, higher surface area catalyst carrier. Surface areas from 10 m2/g to 400 m2g are typically based on high-purity raw materials. When needed, Saint-Gobain NorPro can incorporate unusual pore size distributions, including a high proportion of... [See More]

• Material Type: Alumina; Al Silicate or Mica Based
• Width / Diameter: 0.1181 to 19.69

• Shape / Form: Hollow Stock (Tube, Pipe, Column) (optional feature); Custom Shape; Ferrule / Eyelet (optional feature)
• Density: 0.6879 to 0.7799

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]

• Material Type: Alumina
• Applications: Refractory or High Temperature Insulation; Foundry / Metal Processing; Chemical or material processing

• Shape / Form: Filter, Diffuser or Sparger

Aluminas (aluminum oxide, Al2O3) are the most commonly used technical ceramics due to their generally useful properties and good price/performance ratio. Alumina ceramics are commonly subdivided according to their alumina content ranging from 80% to more than 99%. Higher purity alumina demonstrates... [See More]

• Material Type: Alumina
• Max Use Temperature: 1500

• Composition: 85% Al₂O₃
• Thermal Conductivity: 16

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]

• Material Type: Alumina
• Shape / Form: Rod

• Composition: 94% - 99.5% Al2O3
• Length: 59.06

ZIRCAR Ceramics ™ Alumina Bubbles Type IB-100 are hollow, thin-wall, high-purity alumina ceramic spheres. These low-density sintered ceramic bodies exhibit low thermal conductivity, exceptional resistance to chemical attack, high packing strength and excellent thermal shock resistance. IB-100... [See More]

• Material Type: Alumina

• Shape / Form: Grannular Fill

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]

• Material Type: Alumina; Carbide Material; Silicon Carbide
• Max Use Temperature: 1093 to 1649

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

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]

• Material Type: Alumina
• Shape / Form: Tube

• Composition: Al_2O_3 , SiO_2 , Other Metal Oxides
• Length: 36

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]

• Material Type: Alumina; Mullite (optional feature); Silicon Nitride; SpecialtyMaterial
• Length: 5.91 to 23.62

• Shape / Form: Tube
• Width / Diameter: 0.4921 to 1.1

Denstone ® deltaP ™ 99 technology utilizes the revolutionary, patent pending Saint-Gobain NorPro Denstone deltaP bed support technology and combines it with a high alumina, low silica composition to produce a media that is engineered to withstand the most severe environments while... [See More]

• Material Type: Alumina
• Shape / Form: Hollow Stock (Tube, Pipe, Column); Custom Shape

• Composition: Al2O₃ >99%
• Width / Diameter: 0.1181 to 1.97

RATH products made of high-temperature wool are suitable for ultra-light refractory solutions in application fields where temperatures of up to 1650 °C must be achieved. Typical applications. High temperature insulation wool is an ultra-lightweight insulation material that, due to its... [See More]

• Material Type: Alumina
• Applications: Thermal Insulation or Fire Proofing Material

• Max Use Temperature: 1000 to 1650

LP and ULP brick series comprise  super dense high alumina refractory bricks with an extremely low porosity as every 2% lower porosity reduces chemical ingression by 40 - 50%.  . LP and ULP bricks provide thermal shock resistance and very good resistance to various aggressive slags. For... [See More]

• Material Type: Alumina
• Max Use Temperature: 1800

• Shape / Form: Block

The most widely used and best-known fine ceramic material. Good mechanical strength, electrical insulation, high-frequency loss, thermal conductivity, and resistance to heat, wear and corrosion. Sapphire is single-crystal alumina. [See More]

• Material Type: Alumina
• Max Use Temperature: 800 to 1000

• Shape / Form: Roller / Roll (optional feature); Tube (optional feature); WaferSubstrate (optional feature); Hollow Stock (Tube, Pipe, Column) (optional feature); Custom Shape (optional feature)
• Thermal Conductivity: 18

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Custom Shape

High Surface Area Rings and Extrudates. Saint-Gobain NorPro has a long-standing tradition of supplying top bed solutions to its customers. We can customize a solution based on your plant's performance needs. One of our top bed solutions is the NorPro ® HSA alumina catalyst carrier rings. An HSA... [See More]

• Material Type: Alumina
• Applications: Chemical or material processing; Refining, Natural Gas, Hydrocracking

• Shape / Form: Hollow Stock (Tube, Pipe, Column); Custom Shape; Ferrule / Eyelet (optional feature)
• Performance Features: Porous material

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]

• Material Type: Alumina
• Applications: Refractory or High Temperature Insulation; Foundry / Metal Processing; Chemical or material processing

• Shape / Form: Custom Shape (optional feature); Filter, Diffuser or Sparger

Aluminas (aluminum oxide, Al2O3) are the most commonly used technical ceramics due to their generally useful properties and good price/performance ratio. Alumina ceramics are commonly subdivided according to their alumina content ranging from 80% to more than 99%. Higher purity alumina demonstrates... [See More]

• Material Type: Alumina
• Max Use Temperature: 1800

• Composition: 98.5% Al₂O₃
• Thermal Conductivity: 27.5

Alumina is the most cost effective and widely used material in the family of engineering ceramics. The raw materials from which this high performance technical grade ceramic is made are readily available and reasonably priced, resulting in good value for the cost in fabricated alumina shapes. With... [See More]

• Material Type: Alumina

• Shape / Form: Custom Shape

ZIRCAR Ceramics ™ Bubble Alumina is a rigid, low-density, insulating refractory comprised of ZIRCAR Ceramics ™ Alumina Bubble Types IB-100A and IB-100B bonded in high-purity Alumina Cement Type AL-CEM. While Bubble Alumina exhibits a bulk density twice that of a premium -grade alumina... [See More]

• Material Type: Alumina

• Shape / Form: Custom Shape

APPLICATIONS OF FIRE CLAY HIGH ALUMINA BRICK  Coke oven, re-generator, checker brick, flue, combustor, roofs, walls, riser pipes, door and etc. Coke quench tower,  chamber dust collector, residual-heat boiler,  soaking pit,  and different kinds of heating furnaces. Copper, lead... [See More]

• Material Type: Alumina; Cordierite; Fireclay; Silica or fused silica; Mullite; SpecialtyMaterial; Cordierite, Andalusite, Corundum
• Max Use Temperature: 1300 to 1790

• Shape / Form: Block
• Compressive Strength: 3553 to 11603

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]

• Material Type: Alumina
• Shape / Form: Tube

• Composition: Al_2O_3 , SiO_2 , CaO, B_2O_3, MgO Other Metal Oxides
• Length: 36

Some catalyst carriers in this series are available in monomodal or bi-modal or pore options. For many years, Saint-Gobain NorPro has been known for its range of very low surface area macroporous alpha-alumina-based carrier materials. Inert to their environment in most circumstances, the carriers... [See More]

• Material Type: Alumina; Al Silicate or Mica Based; SpecialtyMaterial; alpha/ Glassy Silica, Bauxite
• Width / Diameter: 0.1181 to 19.69

• Shape / Form: Hollow Stock (Tube, Pipe, Column) (optional feature); Grannular Fill; Custom Shape; Ferrule / Eyelet (optional feature)
• Density: 0.6099 to 2

Vacuum-formed products made of mineral and high-temperature wools can be used at application temperatures of up to 1800 °C. Typical applications. Mineral wool, alkaline earth silicate wool (AES), aluminum silicate wool (ASW) and polycrystalline wool (PCW) serve as the raw material base. [See More]

• Material Type: Alumina
• Applications: Thermal Insulation or Fire Proofing Material

• Max Use Temperature: 600 to 1800

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Tube

Hold-Down Media. Pentaring bed topping is used as a hold-down media at the top of graded reactor beds. The Pentaring shape offers substantial gains in void fraction and surface area when compared to conventional sphere-shaped media or Raschig rings. The immediate benefit of high void fraction is... [See More]

• Material Type: Alumina
• Shape / Form: Custom Shape

• Composition: 65-70% SiO₂, 23-28% AlO₃, Trace Elements
• Length: 0.2559 to 0.4921

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]

• Material Type: Alumina; Ca Aluminate
• Applications: Refractory or High Temperature Insulation; Abrasion Resistant; Foundry / Metal Processing; Chemical or material processing; Structural; Wear resistant parts or tooling

• Shape / Form: Roller / Roll; BarStock; Custom Shape

CoorsTek alumina ferrules are offered in a variety of shapes and alumina grades, engineered to optimize the performance of each waste heat exchanger. Contact our experts today to determine the best material and configuration for your application. High-Performance Ceramic Support Components. We offer... [See More]

• Material Type: Alumina
• Applications: Optimize the Performance of Waste Heat Exchanger

• Shape / Form: Ferrule / Eyelet

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]

• Material Type: Alumina; Silica or fused silica
• Max Use Temperature: 1260 to 1649

• Shape / Form: Block
• Thermal Conductivity: 0.1800 to 0.4400

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]

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

• Composition: Al_2O_3 , SiO_2 , Other Metal Oxides
• Length: 24

Hold-Down Media. Pentaring bed topping is used as a hold-down media at the top of graded reactor beds. The Pentaring shape offers substantial gains in void fraction and surface area when compared to conventional sphere-shaped media or Raschig rings. The immediate benefit of high void fraction is... [See More]

• Material Type: Alumina
• Shape / Form: Custom Shape

• Composition: 65-70% SiO₂, 23-28% AlO₃, Trace Elements
• Length: 0.2559 to 0.4921

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]

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

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

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Tube

High Alumina -- For applications involving extreme temperatures to 1800 °C, Saint-Gobain NorPro offers a >99% alumina body. [See More]

• Material Type: Alumina
• Applications: Chemical or material processing; Corrosion resistant

• Shape / Form: Custom Shape
• Bond & Processing: Sintered / Fired

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]

• Material Type: Alumina
• Applications: Refractory or High Temperature Insulation; Foundry / Metal Processing; Chemical or material processing

• Shape / Form: Filter, Diffuser or Sparger

Aluminas (aluminum oxide, Al2O3) are the most commonly used technical ceramics due to their generally useful properties and good price/performance ratio. Alumina ceramics are commonly subdivided according to their alumina content ranging from 80% to more than 99%. Higher purity alumina demonstrates... [See More]

• Material Type: Alumina
• Max Use Temperature: 1800

• Composition: 99.9% Al₂O₃
• Thermal Conductivity: 30

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]

• Material Type: Alumina
• Density: 2.9 to 3

• Max Use Temperature: 816
• MOR / Flexural Strength: 1450 to 1740

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]

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

• Composition: Al_2O_3 , SiO_2 , CaO, B_2O_3, MgO Other Metal Oxides
• Length: 18

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Tube

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]

• Material Type: Alumina
• Applications: Refractory or High Temperature Insulation; Foundry / Metal Processing; Chemical or material processing

• Shape / Form: Filter, Diffuser or Sparger

ZIRCAR Refractory Sheet Type RS-99 is a high density fiber based ceramic material with greater than 99% alumina purity. Type RS-99 has strength equal to asbestos cement and therefore is an excellent replacement for asbestos cement materials. Refractory Sheet Type RS-99 is usable to temperatures of... [See More]

• Material Type: Alumina
• Width / Diameter: 24

• Length: 24
• Max Use Temperature: ? to 1650

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Tube

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Tube

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Tube

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Tube

Included in our stock of inch and metric refractory fasteners is Molybdenum (Mo or Moly), Tantalum (Ta), Tungsten (W), and Alumina (Al2O3 or AD998) screws (fillister, flat & pan head), nuts (hex, square, round with flat or double d, & round slotted), washers (flat, thin, & shoulder), threaded rod,... [See More]

• Material Type: Alumina

• Shape / Form: Tube