Alumina Discs / Plates
Inquiry NowProduct Description
Alumina discs and plates are high-performance ceramic components widely used in electronics, thermal management, vacuum applications, and wear-resistant environments. Known for their exceptional hardness, dielectric strength, and chemical stability, alumina ceramic discs are an excellent choice for industries requiring both mechanical durability and electrical insulation.
M-Kube supplies precision-engineered alumina discs in various sizes and specifications, making them suitable for both standard applications and customized solutions.
Key Features of Alumina Discs & Plates
- High Purity (99.8% Al₂O₃): Ensures superior thermal and electrical properties.
- Excellent Mechanical Strength: Flexural strength of up to 340 MPa for demanding applications.
- High Hardness: Mohs hardness of 9, offering outstanding wear resistance.
- Thermal Stability: Maximum service temperature up to 1800°C.
- Electrical Insulation: Dielectric strength of 10 KV/mm, ideal for electronic components.
- Low Thermal Expansion: Reduces the risk of cracking during thermal cycling.
Technical Specifications
| Alumina 99.8% | ||
| AL2O3 (% Composition) | 99.8 | |
| Density (g/cm3) | 3.83 | |
| Flexural Strength (MPa) | 340 | |
| Thermal Expansion (×10-6/) 25℃ – 800℃ | 7.6 | |
| Thermal Conductivity [W/(m.R)] | 34 | |
| Dielectric Strength (KV/mm) | 10 | |
| Resistivity (Ω.cm) | 20°C | *1014 |
| 300°C | *1013 | |
| Max Service Temperature (℃) | 1800 | |
| Hardness (Moh’s scale) | 9 | |
Applications of Alumina Ceramic Discs & Plates
- Electrical & Electronics: Used as insulators, substrates, and spacers in high-voltage and RF components.
- Thermal Management: Suitable for heat spreaders in semiconductor and LED applications.
- Industrial Equipment: Wear-resistant parts in pumps, valves, and bearings.
- Research & Laboratory: Used in high-temperature furnace components and analytical instruments.
Looking for alternatives? You can also explore our Alumina Polished sheets https://mkubeenterprise.co.in/product/highly-polished-alumina-al2o3sheets/
And Alumina tubes & rods https://mkubeenterprise.co.in/product/alumina-tubes-and-rods/
Quality and Compliance
At M-Kube, all our ceramic and refractory products are manufactured in ISO-certified facilities with the capability to meet and comply with ASTM, ISO, and other international standards. This ensures every product delivers consistent quality, reliability, and performance, whether you require standard parts or fully customized solutions.
Why Choose M-Kube for Alumina Discs?
- Trusted alumina discs supplier in India with global reach.
- Custom manufacturing available for discs, plates, and substrates.
- Competitive pricing without compromising on quality.
- Reliable supply chain with quick delivery timelines.
Get a Quote
Looking for high-purity alumina discs for your application? Contact M-Kube today to discuss your requirements.
📞 Call: +91 9898892994
📧 Email: marketing@mkubeenterprise.co.in
Product FAQ's
What are alumina discs commonly made of?
Alumina discs are made from high-purity aluminum oxide, giving them excellent hardness, strength, and stability. Their ceramic composition ensures consistent performance under heat and pressure
Do Alumina Disc suppliers in India offer bulk orders?
Yes, M-Kube Enterprise supplies alumina ceramic discs in both small and bulk quantities with reliable delivery.
Are customized Alumina Ceramic Discs available?
Yes, M-Kube Enterprise provides customized alumina ceramic discs based on client specifications and requirements and drawings.
How do alumina ceramic discs perform under high temperatures?
Alumina ceramic discs can withstand extremely high temperatures upto 1800C without losing strength or shape. This makes them highly reliable for applications requiring durability in heat-intensive environments.
Are alumina discs suitable for precision grinding applications?
Yes, alumina discs are engineered for precision, offering uniform hardness and resistance to wear. Their stability ensures smooth and accurate grinding results in laboratory and industrial settings.
What makes an alumina ceramic disc different from standard discs?
Unlike standard materials, an alumina ceramic disc offers superior hardness, resistance to abrasion, and thermal stability. These qualities ensure consistent reliability for high-demand industrial operations.
How are alumina discs tested for quality before delivery?
Every alumina disc undergoes rigorous inspection for purity, dimensional accuracy, density, and strength. This process ensures that each product meets international performance and durability standards.






