Custom Alumina Ceramic Parts & Components (Al₂O₃)
Direct-factory custom machining of technical grade alumina ceramics (95% to 99.5% standard, up to 99.9% semiconductor grade available). Delivering exceptional dielectric breakdown strength and sub-micron dimensional stability.
Request a QuoteView Machining Capabilities1500°C – 1600°C
Max Service Temp
Strategic Manufacturing Advantage
Leveraging 10+ years of factory engineering expertise to machine dense alumina components with zero edge-chipping and minimal subsurface damage—guaranteeing the structural integrity of complex fine-pitch electrical insulators.
Key Material Properties
Quantitative engineering data for design validation and material selection
Available Grades
Precision Alumina Ceramic Parts
High-Value Applications
Proven performance in demanding semiconductor, electronics, and industrial environments
Semiconductor Processing
Electronics & Testing
Vacuum & Fluidics
Typical Mechanical & Thermal Properties
Reference data for 99.5% Alumina grade at room temperature
| Property | Test Method | Unit | Value |
|---|---|---|---|
| Density | ISO 2738 | g/cm³ | 3.85 |
| Flexural Strength | ISO 14704 | MPa | 350 |
| Young’s Modulus | ISO 17561 | GPa | 370 |
| Vickers Hardness | ISO 6507 | HV0.5 | ≥ 1500 |
| Fracture Toughness | ISO 23146 | MPa·m½ | 3.5 – 4.0 |
| Thermal Conductivity | ISO 22007 | W/m·K | 27 |
| Coefficient of Thermal Expansion | ISO 11372 | x10⁻⁶/K | 7.5 – 8.5 |
| Dielectric Strength | IEC 60243 | kV/mm | ≥ 15 |
| Volume Resistivity | IEC 60243 | Ω·cm | > 10¹⁴ |
| Max Service Temperature | Continuous | °C | 1500 – 1600 |
Precision Machining Capabilities for Alumina
Overcoming material hardness through advanced diamond tooling and multi-axis CNC grinding
Tight Tolerance Grinding
Linear dimensions maintained within ±0.003 mm through precision diamond wheel profiling and in-process gauging.
Mirror Surface Finishing
Ra 0.02 μm surface quality achieved via sequential diamond lapping and polishing, eliminating subsurface micro-cracks.
Complex Geometry Machining
5-axis CNC milling for intricate features, deep pockets, thin walls (down to 0.5 mm), and multi-face operations in single setup.
Micro-Hole Drilling
Diamond micro-drilling down to Ø 0.3 mm with high aspect ratios, maintaining hole circularity and edge integrity.
Zero Edge-Chipping Process
Optimized grinding parameters and tool paths prevent edge fracture, ensuring clean corners and sharp features.
Full Metrology Validation
100% inspection using calibrated CMM, optical comparators, and Swiss Trimos gauges with FAI/OQC documentation.
Validate Your Alumina Component Design with KoreCera
Submit your 2D engineering blueprints or 3D CAD files (.STEP / .IGS) below. Our expert engineering team will conduct an in-depth Design-for-Manufacturability (DFM) review and deliver a competitive direct-factory quote. Fast-track prototyping completed within 7-10 business days. Full FAI, OQC, and material traceability reports provided upon delivery.
100% Strict NDA Protection Enforced
Submit Drawing for 24-Hour ReviewReady to Start Your Ceramic Component Project?
Send us your 2D drawings, 3D CAD files (.STEP / .IGS) or physical samples. Our engineering team will review manufacturability and return a competitive direct-factory quotation. Full NDA protection.
Email: james@korecera.com
Submit Your Drawing