Alumina Custom Components
Custom Alumina Ceramic Component
- Material
- Alumina
- Size
- Custom by drawing
- MOQ
- Confirmed with quotation
- Applications
- Insulation, positioning and equipment interfaces
Drawing-based alumina components with threaded bores, hexagonal profiles, shoulders and flanges for application-specific equipment interfaces.
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Product Description
Drawing-based alumina components with threaded bores, hexagonal profiles, shoulders and flanges for application-specific equipment interfaces.
Alumina custom components are electrically insulating, wear-resistant ceramic parts for equipment supports, spacers, locators and mounting interfaces. Threads, shoulders and flanges combine several assembly functions in one body.
The pictured form combines an internal thread with a hexagonal outer profile, a reduced neck and a recessed flange. The thread joins the mating part, while the shoulder and flange provide locating and support surfaces. Alumina grade, thread geometry and surface finish are matched to the electrical, thermal and mechanical duty.
Product Features
- Electrical isolation for equipment interfaces
- Hard, wear-resistant ceramic body
- Threaded, stepped and flanged assembly features
- Custom locating and support surfaces
Typical Applications
- Electrical Equipment — Insulating supports and mounting interfaces
- Industrial Equipment — Custom spacers, locators and ceramic interface components
- Thermal-Process Equipment — Insulating and positioning components in thermal assemblies
Product Geometry & Configuration
Alumina Typical Material Properties
| Property | 95% Al₂O₃ | 99% Al₂O₃ | 99.5% Al₂O₃ | 99.8% Al₂O₃ | Condition / basis |
|---|---|---|---|---|---|
| Density (g/cm³) | 3.65 | 3.85 | 3.90 | 3.92 | — |
| Fracture toughness (MPa·m½) | 3–4 | 3–4 | 4 | 4 | — |
| Young’s modulus (GPa) | 320 | 340 | 370 | 390 | — |
| Flexural strength (MPa) | 300 | 330 | 375 | 390 | 25°C |
| Compressive strength (MPa) | 2200 | 2350 | 2450 | 2500 | 25°C |
| Thermal conductivity (W/(m·K)) | 18–22 | 27 | 29 | 32 | 25°C |
| Linear thermal expansion coefficient (10⁻⁶/K) | 8 | 8 | 8 | 8 | 25–1000°C |
| Dielectric strength (kV/mm) | 16 | 20 | 22 | 22 | — |
| Volume resistivity (Ω·cm) | 10¹⁴ | 10¹⁴ | 10¹⁴ | 10¹⁴ | 25°C |
| Relative permittivity | 9 | 9.7 | 9.7 | 9.8 | 1MHz, 25°C |
| Dielectric loss | 0.0004 | 0.0002 | 0.0002 | 0.0001 | 1MHz, 25°C |
| Vickers hardness (HV) | >1300 | 1700 | 1750 | 1800 | — |
| Material thermal-shock temperature difference, ΔT (°C) | 220 | 180–200 | 180–200 | 180–200 | — |
| Typical maximum material temperature (°C) | 1500 | 1650 | 1700 | 1700 | — |
Product Geometry & Configuration
| Product parameter | Configuration | Basis |
|---|---|---|
| Material | Alumina ceramic | Grade and purity selected for the service environment |
| Threaded interface | Internal thread | Designation, pitch, engagement length and acceptance method on the drawing |
| Outer profile | Hexagonal body, reduced neck and circular flange | Across-flats, overall length, neck diameter and flange dimensions on the drawing |
| Locating surfaces | Recessed bore, shoulders and flange faces | Mating fit, alignment and surface finish on the drawing |
| Other forms | Custom shoulders, bores and mounting interfaces | Manufacturing feasibility and drawing review |
Available Forms
Representative forms are shown for selection; final geometry follows the approved drawing.
- Internally threaded ceramic bodies
- Hexagonal outer profiles with cylindrical necks
- Flanged components with recessed bores
- Other drawing-defined shoulders and mating interfaces
Packaging & Shipping
Packing is selected to protect threads, flange edges and locating faces during handling and transport.
| Item | Details |
|---|---|
| Component protection | Separate and cushion components to prevent ceramic-to-ceramic contact; confirm protection of exposed threads and flange edges. |
| Identification | Drawing revision, part identification and inspection documentation are agreed with the order. |
| Packing arrangement and other commercial terms | Carton or case and other commercial terms are confirmed with the quotation. |
| Payment terms | T/T / Western Union / PayPal; 50% advance payment, 50% balance before shipment |
| Shipping methods | Sea freight / Air freight / Door-to-door courier |
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Frequently Asked Questions
Can the thread and flange geometry be customized?
Submit a dimensioned drawing with thread designation, mating-part details and critical tolerances. Feasibility is reviewed for the complete ceramic geometry before quotation.
Which alumina grade should I specify?
State the required grade if known. Otherwise provide electrical duty, temperature cycle, medium and mechanical loading so material options can be reviewed. A photograph does not establish purity or a performance rating.
What information is needed for a quotation?
Send the drawing and revision, quantity, service conditions, mating interfaces, surface and inspection requirements, and any documentation or delivery requirements.