Many buyers search for custom ceramic parts when a standard catalog item cannot fit their assembly. The part may need a special diameter, bore, step, slot, hole, tolerance, surface finish or material grade. HERUN helps turn drawings and samples into manufacturable ceramic components.
Material Property Comparison
| Material | Hardness | Fracture toughness | Flexural strength | Max use temperature | Thermal conductivity | Electrical insulation | Relative cost |
|---|---|---|---|---|---|---|---|
| 95%-99% alumina (Al2O3) | 12-20 GPa | 3-5 MPa m^0.5 | 300-450 MPa | 1500-1700 C | 20-35 W/m K | Excellent | Low to medium |
| Y-TZP zirconia (ZrO2) | 11-13 GPa | 6-10 MPa m^0.5 | 800-1200 MPa | 900-1100 C | 2-3 W/m K | Good at room temperature | Medium to high |
| Silicon carbide (SiC) | 22-28 GPa | 3-4 MPa m^0.5 | 350-550 MPa | 1400-1650 C | 80-120 W/m K | Limited / semiconductive | High |
| Silicon nitride (Si3N4) | 14-18 GPa | 5-7 MPa m^0.5 | 700-1000 MPa | 1000-1200 C | 20-35 W/m K | Good | High |
Typical values for comparison — request a datasheet for guaranteed specifications.
What Custom Ceramic Parts Can Be Made?
- Ceramic rods, pins, shafts, plungers and guide parts.
- Ceramic tubes, sleeves, bushings and insulating spacers.
- Custom ceramic rings, washers, seal faces and round parts.
- Alumina and zirconia parts for pumps, valves, furnaces, sensors and machinery.
From Drawing to Ceramic Part
The manufacturing route depends on size, shape, tolerance and quantity. A part may be formed, green machined, sintered, then diamond ground or polished. Ceramic shrinkage during sintering means the process must be planned before final precision finishing.
Material Choice
Alumina is common for insulation, temperature resistance and cost-effective wear. Zirconia is selected for tougher precision parts, polished sliding contact and reduced chipping risk. If the material is not decided, send the working condition and HERUN can suggest a practical option.
What Information Should Be on the Drawing?
- Critical OD, ID, length, thickness and hole dimensions.
- Tolerance, surface finish and flatness where important.
- Chamfer or radius requirements to reduce edge damage.
- Quantity, inspection requirement and application environment.
Related Pages
FAQ
Can HERUN manufacture ceramic parts from customer drawings?
Yes. HERUN manufactures custom alumina and zirconia ceramic components from drawings, sample photos and application requirements.
What file formats are useful for custom ceramic quotes?
PDF drawings are best for dimensions and tolerances. STEP, IGES, DXF, DWG, JPG and PNG files can also help review geometry and manufacturing feasibility.
Why does ceramic tolerance affect price?
Ceramics are very hard after sintering, so tight tolerances usually require diamond grinding. Marking only the critical dimensions helps control cost.