Alumina Disc – 99.8% High Purity Alumina
Our alumina disc are manufactured from high purity alumina ceramic sourced from globally recognized producers such as ALCOA and designed for high temperature laboratory and industrial applications. These crucibles offer excellent thermal stability, chemical resistance, and mechanical strength, making them suitable for demanding furnace environments.
Manufactured using advanced ceramic processing techniques such as slip casting and pressure casting, our crucibles ensure consistent quality and reliable performance during high temperature testing and material analysis.
These alumina crucibles are widely used in metallurgy laboratories, materials science research, chemical analysis, and high temperature furnace applications.
Key Features
- High purity alumina ceramic (≥ 99.8% Al₂O₃)
- Maximum operating temperature up to 1750°C (without load)
- High mechanical strength and dense ceramic structure
- Excellent resistance to chemical corrosion
- Suitable for laboratory and industrial furnace applications
- Tested for ultra-high vacuum compatibility
Manufacturing Process
Our ceramic labware is manufactured using precision ceramic forming techniques including:
- Slip casting
- Pressure casting
The sintered alumina ceramic achieves a fine grain structure and high density, ensuring excellent performance in high temperature environments.
Technical Specifications
| Property | Value |
| Material | High Purity Alumina |
| Al₂O₃ Purity | ≥ 99.8% |
| Sintered Density | > 3.9 g/cm³ |
| Theoretical Density | 3.96 g/cm³ |
| Grain Size | 2–4 microns |
| Maximum Temperature | 1750°C |
| Thermal Shock Rate | ≤ 150°C per hour |
Dimensional Tolerance
For manufactured alumina crucibles, dimensional tolerances are as follows:
- ±1 mm for dimensions up to 50 mm
- ±2 mm for dimensions above 50 mm
Applications
Alumina disc are commonly used in:
- Metallurgy testing laboratories
- Materials science research laboratories
- Chemical analysis laboratories
- Battery material testing
- Ceramic material research
- Industrial high temperature furnace applications
Vacuum Compatibility
Tested for ultra-high vacuum compatibility, making them suitable for advanced laboratory and research environments.
Packaging and Shipping
Products are carefully packed to minimize breakage during transportation.
In stock items: Dispatch within 3–5 business days
Items not currently in stock: Estimated production lead time 4–5 weeks
Ships From: Mumbai, India
We offer two purity grades:
99.8% Alumina
Recommended for high temperature and research applications.
99.5% Alumina
Economical option for general laboratory use.
Technical Documents
Download the detailed product documentation below:
Technical Datasheet (PDF)
Bob Kashyap –
Nice quality product and delivery reached at time