
Alumina and corundum crucibles and boats
Cylindrical, rectangular and special-shaped crucibles and boats for metallurgy, chemical processing, electronics, glass and laboratory analysis.
Configurations
- Cylindrical
- Rectangular
- Special-shaped
Applications
- Metallurgy
- Chemical processing
- Electronics
- Glass
- Laboratory analysis
Ordering
- Minimum order, non-standard parts
- 100 pcs
- Usually, per item made to your drawing or sample.
- Samples for approval
- 5–10 pcs
- Usually sent for you to approve before the order runs.
- Production lead time
- 25–30 days
- Usual production cycle for non-standard parts.
- Standard sizes from stock
- ~3–7 days
- Stock covers most standard sizes. Small orders ship in about 3 days, bulk orders in about 7 days.
Typical terms. Quantities and dates for your order are confirmed in its quotation.
Photographed at the factory


Materials and grades
Alumina and corundum. Purity and maximum temperature are confirmed per SKU at quotation.
Full datasheets for both grades| Material | Al₂O₃ % | Working temperature °C | Hardness, Mohs |
|---|---|---|---|
| High-alumina | >85 | 1300–1450 | 8 |
| Corundum | 99 / 99.5 / 99.7* | 1600–1800* | 8-9 |
* Stated per SKU. Not every corundum product is 99.7% Al₂O₃ or suitable for 1800 °C; the grade and maximum temperature of each part are confirmed in its quotation.
What to send for a quote
- 01Shape: cylindrical, rectangular or special
- 02Outside dimensions, wall thickness and capacity
- 03Lid required or not
- 04What will be melted, fired or analysed, and at what temperature
- 05Al₂O₃ grade
- 06Quantity
Next family:Custom alumina and industrial ceramic components
Request a quote
Get a quotation for crucibles & boats.
Tell us the dimensions, grade and quantity. A contractual datasheet with current, product-specific test data and tolerances comes with each quotation.