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SINTYRON Insulating 99% Alumina Ceramic Plate Al2o3 Sheet Block for Equipment


99% Alumina Ceramic Block is a high-purity, sintered ceramic component composed of 99% aluminum oxide (Al₂O₃). This composition represents a premium-grade alumina ceramic, offering a superior and balanced profile of mechanical, thermal, and electrical properties, making it suitable for the most demanding industrial environments. The block form factor indicates a substantial, three-dimensional solid geometry, designed for heavy-duty structural or functional applications.

Email: sintyron@xtlceramic.com

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SINTYRON Insulating 99% Alumina Ceramic Plate Al2o3 Sheet Block for Equipment


Product description:
Alumina plates, made from aluminum oxide (Al₂O₃), are widely used in various industries due to their excellent properties,

including high hardness, thermal stability, and chemical resistance.

Alumina Ceramic Block Information:

Product Alumina ceramic block
Material Al2O3
Purity 95%-99%
Color White/Nylon yellow
Shape Arc/Square/Rectangle/Cylinder/Boat
Capacity 1-2000 ml
Density 3.98 g/cm3
Melting Point 2020℃
Max. Working Temperature 1800 ℃or 3180 F

Performance parameters:

Test item   alumina
index unit AL997 AL99 AL95
Principal component content N/A 99.70% 99% 95%
Color N/A ivory white ivory yellow White
Gas permeability N/A airtight airtight airtight
density g/cm3 3.9 3.8 3.7
hardness Moh's hardness 9 9 8.8
Water Absorption N/A ≤0.2 ≤0.2 ≤0.2
Bending strength (20°C) Mpa 375 340 304
Compressive Strength (20°C) Mpa 2300 2210 1910
Coefficient of thermal expansion (25°C to 800° C) 10X6/° C 7.6 7.6 7.6
Insulation strength (5mm thickness)  AC-kv/mm 10 10 10
Dielectric loss 25°C lMHz  N/A 0.0001 0.0006 0.0004
dielectric constant 25°C MHz  N/A 9.8 9.5 9.2
Volume resistivity (20°C) (300°C) (500 °C) Ω.cm3 >1014 >1014 >1014
2X1012 4X10" 2X10"
N/A N/A N/A
Long-term service temperature 1700 1600 1400
Thermal conductivity (25° C) W/m/K 35 34 20

Properties of Alumina Ceramic Block

  • High Hardness: Possessing a Mohs hardness of 9, it is extremely resistant to abrasive wear, scratching, and erosion, significantly
    outperforming most metals and alloys.
  • High Compressive Strength: It can withstand immense crushing loads without deformation, making it ideal for use as load-bearing
    components in presses or fixtures.
  • Superior Thermal Performance:

    Excellent Thermal Stability: The block can operate in continuous service at temperatures up to 1650°C (3000°F) and can withstand
  • short-term peaks even higher.
  • Good Thermal Shock Resistance: It maintains structural integrity under rapid temperature changes, though this is somewhat lower
  • than in zirconia-based ceramics.
  • Outstanding Electrical Properties:

    Excellent Electrical Insulation: It provides high dielectric strength and volume resistivity, even at elevated temperatures, making it
    perfect for high-voltage and high-frequency applications.
  • High Chemical Inertness:

    It is highly resistant to attack by a wide range of acids, alkalis, and molten metals, ensuring long-term performance in corrosive environments.

Applications of Alumina Ceramic Block:

  • Wear-Resistant Components: As liners, wear blocks, and guides in mining, mineral processing, and bulk material handling equipment to
    protect machinery from abrasion.

  • Thermal Processing: As kiln furniture, furnace hearth plates, setters, and support structures in high-temperature sintering furnaces and
    heat treatment operations.

  • Electrical Insulation: As robust insulating structural members in high-voltage switchgear, bus bar supports, and plasma torch bodies.

  • Precision Fixturing: As thermally stable and wear-resistant blocks for jigs, fixtures, and reference bases in precision manufacturing
    and measurement systems.

  • General Industrial: As components in chemical processing equipment, seal housings, and ballistic armor arrays.

Manufacturers and Suppliers

  1. AdValueTech: Offers alumina plates in various dimensions and thicknesses, with customization options available.

  2. CERADIR: Provides 99.7% alumina plates with high reliability and thermal stability, suitable for industrial and
    electronic applications.

  3. MICROPLAN ITALIA: Manufactures precision alumina surface plates with high flatness tolerances, available in custom
    sizes and configurations.

  4. AGILEEN: Supplies high-quality alumina plates with a wide range of sizes and dimensions, suitable for various
    industrial applications.

Customization and Quality Assurance

  • Customization: Many manufacturers offer alumina plates tailored to specific dimensions, shapes, and performance requirements
    based on customer drawings or samples.

  • Quality Control: Manufacturers adhere to strict quality control processes, including ISO certifications, to ensure the plates meet
    high standards of durability and performance

Advantages of Alumina Ceramic Block

  1. Cost-Effective: Despite their advanced properties, alumina plates are competitively priced compared to other high-performance
    ceramics.

  2. Versatility: Suitable for a wide range of industries, including mining, medical, and electronics.

  3. Long Service Life: Their wear resistance and toughness ensure a longer lifespan, reducing replacement costs

Company Information:

FAQ:

Why us?
* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.
Are you a trading company or a manufacturer?
* We are a manufaturer. 
Can you provide the free samples?
* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Do you accept customized production based our specification?
* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea,
we will work out the drawing for you.

What's the delivery time?
* 7 working days for standard products 30 days for customized products. 
What is the MOQ?
* No limit to the quantity. We can offer the best proposal and solutions according to your condition.
What is the payment terms you accept?
* T/T,LC,Western Union,moneygram are acceptable.
How to deal with the faulty?
* Firstly, Our product are produced in strict quality control system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free replacement.

Intention information


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