Menu
MetalsTek Engineering is a leading supplier of Alumina (Al₂O₃) products. We offer competitive pricing and excellent lead times on all our materials, and we can supply custom materials per any specs/drawings you provide.
Material: Aluminum Oxide, 99.5%
Compositions: Can be Customized
Form: Pellets, Pieces, Powder, Customized Shapes
Size: 1~6mm, or Tailored Size
Material: Aluminum Oxide, 99.5%
Compositions: Can be Customized
Shape: Discs, Plates, Column Targets, Step Targets, Custom-made
Sizes: Disc – Dia. 1”~14” * Thick 0.125” / 0.25”
Block – Thick≥1mm * Width ≤12” * Length≤14”
Bonding: Indium, Elastomer
Material: Aluminum Oxide, 99.5%
Form: Spherical & Non-spherical
Purity: 99%, 99.5%, 99.9%, can be customized
Sizes: Tailored Particle Sizes
Applications: Abrasives, ceramics, electronics, catalysis, medical implants, environmental protection, cosmetics, gem polishing, automotive components, paints and coatings, construction materials, and optical devices
Material: Aluminum Oxide
Type: Crucible, Dish, Pan, Boat, Customised
Shape: Conical, Cylindrical, Pan, or Customized Shape
Purity: 95%, 99%, 99.9%, can be customized
Temperature: 1,600℃ Operation Temp.
Sizes: Tailored Sizes
Capacities: 3mL~1,500mL
Item Code | Top OD (mm) | Bottom OD (mm) | H(mm) | WT(mm) | C.C(ml) |
AC0925-TW005 | 25 | 15 | 28 | 1.3 | 5 |
AC0925-TW010 | 29 | 18 | 34 | 1.5 | 10 |
AC0925-TW015 | 32 | 23 | 33 | 1.5 | 15 |
AC0925-TW020 | 36 | 23 | 41 | 1.7 | 20 |
AC0925-TW025 | 36 | 25 | 42 | 1.7 | 25 |
AC0925-TW030 | 38 | 25 | 45 | 1.7 | 30 |
AC0925-TW040 | 45 | 30 | 46 | 2 | 40 |
AC0925-TW050 | 48 | 30 | 52 | 2 | 50 |
AC0925-TW070 | 58 | 33 | 66 | 2 | 70 |
AC0925-TW100 | 58 | 35 | 68 | 2 | 100 |
AC0925-TW150 | 67 | 42 | 78 | 2.5 | 150 |
AC0925-TW200 | 73 | 44 | 86 | 2.5 | 200 |
AC0925-TW250 | 79 | 46 | 96 | 2.5 | 250 |
AC0925-TW300 | 83 | 50 | 106 | 2.5 | 300 |
AC0925-TW400 | 91 | 56 | 108 | 2.5 | 400 |
AC0925-TW500 | 100 | 60 | 118 | 3 | 500 |
• Making parts for CVD, ion implants, photolithography, and semiconductor parts.
• Ideal for products such as injector tubes, gas nozzles, and insulators in traditional industries.
• Material for industrial furnaces.
• Protector for high-temperature thermal couples.
• Material for the chemical industry due to its high corrosion resistance.
Material: Aluminum Oxide
Shape: Mortar, Pestle, Custom Shapes
Purity: 95%, 99%, 99.9%, can be customized
Temperature: 1,600℃ Operation Temp.
Sizes: Tailored Sizes
Capacities: 20mL~1,500mL
An alumina mortar and pestle is a common laboratory tool used for grinding, mixing, and crushing solid substances. It consists of two components:
Alumina Mortar: The mortar is a bowl-shaped vessel usually made of high-purity alumina ceramic material. It has a smooth interior surface and sturdy construction that allows for efficient grinding and blending of materials.
Pestle: A pestle is a rod-shaped tool that fits inside the mortar. It is used to crush, grind, or mix substances by applying pressure and friction against the mortar’s inner surface.
1. Pharmaceuticals: Used for grinding and mixing medications, ensuring homogeneity and fine particle size for better absorption and efficacy.
2. Laboratories: Essential in chemical and biological laboratories for grinding, mixing, and homogenizing samples, ensuring consistent and reproducible results in experiments.
3. Material Science: Employed in the preparation of samples for analysis, including grinding materials to a fine powder for X-ray diffraction (XRD), scanning electron microscopy (SEM), and other analytical techniques.
4. Food Industry: Used for grinding spices, herbs, and other food ingredients to release flavors and aromas, ensuring uniform texture and quality in culinary applications.
5. Ceramics and Glass: Utilized in the preparation of ceramic and glass powders, enabling precise control over particle size and distribution for manufacturing high-quality products.
6. Chemical Synthesis: Important in chemical synthesis and formulation, allowing for the thorough mixing of reactants and catalysts to ensure complete reactions and high yields.
7. Cosmetics: Used in the preparation of cosmetic powders and formulations, ensuring a uniform consistency and texture for products like face powders and creams.
8. Educational Purposes: Common in educational settings for teaching students about material preparation, mixing, and homogenization techniques in chemistry and biology courses.
9. Metallurgy: Applied in metallurgical laboratories for preparing metal powders and alloys, facilitating the study of material properties and behaviors.
10. Environmental Science: Used in environmental testing and analysis, such as preparing soil and sediment samples for chemical analysis to determine pollutant levels and composition.
11. Nanotechnology: Employed in the preparation of nanoparticles and nanocomposites, where precise grinding and mixing are crucial for achieving the desired particle size and distribution.
Material: Aluminum Oxide
Shape: Tube, Square Tube, Multi-bore Tube, Custom Shapes
Purity: 95%, 99%, 99.9%, can be customized
Sizes: Tailored Sizes
Alumina, also known as Aluminum Oxide, is a highly versatile material widely used for its strength, thermal stability, and resistance to wear and corrosion. Below are key applications where complex Alumina shapes shine:
Alumina is indispensable in aerospace for components that demand exceptional durability and resistance to extreme conditions. Common applications include nozzles, insulators, and structural supports where high strength and thermal stability are critical.
In the medical field, Alumina is used for its biocompatibility and resilience. Applications include dental prosthetics, hip replacements, and surgical instruments, offering resistance to wear, corrosion, and sterilization processes.
Semiconductor fabrication relies on Alumina’s purity and electrical insulation properties. Its uses include wafer carriers, insulators, and substrates that can withstand high temperatures and exposure to corrosive chemicals.
Alumina provides excellent dielectric strength, making it ideal for insulators, substrates, and heat sinks in electrical and electronic devices. These components ensure stability and reliability in demanding applications.
In chemical industries, Alumina is used for catalyst supports, reaction vessels, and protective liners. Its ability to resist high temperatures and corrosive environments makes it an ideal material for chemical processing equipment.
Alumina’s exceptional hardness is perfect for industrial wear-resistant parts, including pump seals, valve seats, and bearing components. These parts endure abrasive conditions for extended periods, minimizing maintenance needs.
In high-temperature environments like furnaces, kilns, and heat treatment equipment, Alumina serves as an effective thermal insulator. It offers excellent thermal shock resistance and long-term stability under extreme conditions.
Alumina’s precision and heat resistance make it a preferred material for optical and laser systems. Applications include lenses, reflectors, and supports that demand stable performance and high-temperature durability.
Power generation equipment, such as nuclear reactors, turbines, and fuel cells, incorporates Alumina components for their thermal stability, corrosion resistance, and mechanical strength under challenging conditions.
In the automotive sector, Alumina is used for sensors, spark plugs, and exhaust systems. Its ability to endure high temperatures and mechanical stress ensures reliable performance in harsh environments.
Laboratory and analytical equipment, including crucibles, sample holders, and mixing tools, benefit from Alumina’s chemical inertness and superior high-temperature performance.
Alumina plays a critical role in environmental and water treatment, offering long-term durability in components that handle corrosive fluids and gases, even in the harshest conditions.
These diverse applications highlight why Aluminum Oxide (Alumina) is a top choice across industries. Its remarkable properties make it an essential material for advanced technologies and industrial innovations.
For more details about Alumina complex shapes or to request custom solutions, visit MetalsTek or contact us at sales@metalstek.com.
Material: Aluminum Oxide
Purity: 95%, 99%, 99.9%, can be customized
Sizes: M2, M2.5, M3, M4, M5, M6, M8, M10, Tailored Sizes
Length: 3~100mm, Metric and Imperial
Other Materials:
Boron Nitride / Pyrolytic boron nitride / Silicon Carbide (98% 99.5%) / Silicon Nitride / Boron Carbide / Zirconia
Material: Aluminum Oxide, Alumina Ceramic
Purity: 95%, 99%, 99.9%, can be customized
Density: 3.8~3.9 g/cc
Shape: Cylinder, Rod, Bar, Square Bar, customized shapes
Size: Tailored Sizes
Other Ceramic Materials:
Boron Nitride / Pyrolytic boron nitride / Silicon Carbide (98% 99.5%) / Silicon Nitride / Boron Carbide / Zirconia
Material: Aluminum Oxide, Alumina Ceramic
Purity: 95%, 99%, 99.9%, can be customized
Density: 3.6~3.9 g/cc
Shape: Plate, Disc, Irregular Shapes, or Customized
Size: Tailored Sizes
Other Ceramic Materials:
Boron Nitride / Pyrolytic boron nitride / Silicon Carbide (98% 99.5%) / Silicon Nitride / Boron Carbide / Zirconia
Material: Zirconia Toughened Alumina
Purity: 99%, can be customized
Density: 4.1～4.38 g/cc
Operating Temperature： 1，600 ℃
Product Type: Crucible, Disc, Plate, Rod, Dish, Tube, Sealing Ring, Custom Parts
Size: Tailored Sizes per Drawing
Material: Aluminum Oxide
Purity: 95%, 99%, 99.9%, can be customized
Density: 3.8~3.9 g/cc
Shape & Dimensions: Per Your Drawing
Other Ceramic Materials:
Boron Nitride / Pyrolytic boron nitride / Silicon Carbide (98% 99.5%) / Silicon Nitride / Boron Carbide / Zirconia
Alumina, also known as Aluminum Oxide (Al₂O₃), is a versatile, high-performance material with exceptional mechanical, thermal, and electrical properties. Its ability to resist wear, corrosion, and high temperatures makes it a staple in industries ranging from aerospace to semiconductors.
We at MetalsTek offer a diverse range of Alumina (Aluminum Oxide) products to suit your needs:
Aluminum oxide is classified as an amphoteric oxide, meaning it can react with both acids and bases. For example:
Composition | UNIT | Al-95% | Al-99% | Al-99.7% |
AL2O3 Content | % | 95 | 99 | 99.7 |
Color | White | Ivory | Ivory | |
Tensile Strength | Kpsi | 32 | 38 | 36 |
Flexural Strength | Kpsi | 52 | 55 | 54 |
Compressive Strength | Kpsi | 300 | 377 | 350 |
Density | g/cc | 3.70 | 3.90 | 3.92 |
Hardness | HV, GPa | 13.8 | 17.2 | 18 |
Thermal Conductivity | W/(m K) | 25 | 30 | 30 |
C.O.T.E. | In / In°C (x10^-6) | 7.7 | 7.8 | 7.8 |
Working Temperature | °C | 1500 | 1650 | 1750 |
Dielectric Constant | 9.5 | 9.7 | 9.8 | |
Volume Resistivity (25°C) | Ohm-cm | >10^14 | >10^14 | >10^14 |
Aluminum oxide (Al₂O₃), commonly known as alumina, is a versatile material with a wide array of applications across various industries due to its unique properties.
Aluminum oxide is widely used in sandpapers, grinding wheels, and abrasive discs because of its hardness and durability. It serves as an effective alternative to diamond abrasives in many applications, making it essential in metalworking, woodworking, and surface preparation for coatings.
Thanks to its high melting point and mechanical strength, alumina is ideal for producing ceramics and refractories. It is utilized in cutting tools, wear-resistant components, and thermal insulators, as well as in the construction of furnaces and kilns.
In the electronics industry, aluminum oxide is valued for its excellent electrical insulating properties and thermal conductivity. It is commonly found in substrates for microchips, insulating layers for capacitors and resistors, and heat sinks.
Alumina acts as a catalyst support in various chemical processes due to its high surface area. It is employed in the petroleum industry for hydrocracking and fluid catalytic cracking processes, as well as in the Claus process for converting hydrogen sulfide to elemental sulfur.
The biocompatibility of aluminum oxide makes it suitable for medical implants. It is used in orthopedic implants, dental crowns, and other medical devices that require durability and corrosion resistance.
Aluminum oxide’s lightweight nature combined with high strength makes it ideal for protective gear. It is used in body armor, vehicle armor, and bulletproof windows.
In environmental applications, alumina is utilized in water treatment processes and air purification systems. It serves as a filtration medium to remove impurities from drinking water and capture pollutants from air streams.
Fine particles of aluminum oxide are incorporated into various cosmetic products, functioning as an exfoliating agent in skin care formulations.
The crystalline form of alumina, known as corundum, serves as the base material for precious gemstones like sapphires and rubies. It is also used in polishing gems due to its hardness.
In the automotive sector, aluminum oxide is employed in components that require high performance under stress. It can be found in spark plugs, catalytic converters, and ceramic brake pads.
These diverse applications underscore the significance of aluminum oxide across multiple sectors, making it a critical material for both industrial processes and consumer products.
Come and check out MetalsTek’s facility where the alumina crucibles are made.
Alumina, also known as Aluminum Oxide (Al2O3), is a ceramic material derived from refining aluminum ore (bauxite). It is distinct from aluminum metal and is used in high-performance applications like ceramics, coatings, and electronics.
Alumina products include high-purity powders, spherical alumina, activated alumina, calcined alumina, and custom-fabricated shapes such as crucibles, tubes, and sputtering targets.
Alumina is known for its exceptional hardness (Mohs scale 9), high melting point (>2000°C), corrosion resistance, excellent electrical insulation, and thermal conductivity. These properties make it ideal for demanding applications.
Industries such as aerospace, electronics, semiconductors, energy, ceramics, and healthcare utilize Alumina for thermal coatings, substrates, wear-resistant parts, and catalytic supports.
Alumina is generally inert and non-toxic. It can be recycled in some industrial processes, but its environmental impact largely depends on its production method and usage in applications.
Yes, Alumina can be tailored in terms of purity, particle size, and physical form to meet specific industry requirements, such as in electronics, coatings, and ceramics manufacturing.
Alumina should be stored in a dry, cool environment to prevent contamination and ensure its quality remains intact. High-purity powders should be sealed to avoid moisture absorption.
The cost of Alumina varies based on purity, particle size, and form (e.g., powder vs. fabricated parts). Market demand, production processes, and shipping costs can also influence pricing.
Challenges include ensuring consistent purity levels, proper handling to avoid contamination, and compatibility with other materials in specific processes like sintering or deposition.
While there are alternatives like zirconia or silicon carbide for specific uses, Alumina is often preferred due to its cost-effectiveness, versatility, and superior properties for most applications.
At MetalsTek, we prioritize safe and secure delivery of our Aluminum Oxide (Alumina) products:
Explore our comprehensive range of Alumina (Aluminum Oxide) products at MetalsTek and let us help you find the ideal material for your application. For inquiries, reach out to us at sales@metalstek.com.