Alumina Crucibles & Tubes | High Purity Al₂O₃ >99%
Product Overview
Our high-purity alumina crucibles and tubes are manufactured with Al₂O₃ content exceeding 99%, ensuring minimal contamination of your samples or melts. They offer excellent thermal shock resistance, chemical inertness, and high mechanical strength up to 1750°C.
Key Features
- High purity (Al₂O₃ >99%) – No contamination of samples
- Excellent thermal shock resistance – Withstands rapid heating and cooling
- Chemically inert – Resistant to most molten metals, fluxes, and acids
- High density (3.9 g/cm³) – Low porosity, good mechanical strength
- Custom sizes – Non-standard dimensions available on request
Alumina Crucibles – Standard Sizes
| Catalog No. |
Capacity (ml) |
Top OD (mm) |
Height (mm) |
Wall Thickness (mm) |
| AC-10 |
10 |
30 |
35 |
2.5 |
| AC-20 |
20 |
38 |
42 |
2.5 |
| AC-30 |
30 |
45 |
48 |
3.0 |
| AC-50 |
50 |
55 |
60 |
3.0 |
| AC-100 |
100 |
70 |
80 |
3.5 |
Other capacities and shapes (cylindrical, conical, with lid) available on request.
Alumina Tubes – Standard Sizes
| Outer Diameter (mm) |
Inner Diameter (mm) |
Length (mm) |
Purity |
| 10 |
6 |
100 – 500 |
>99% |
| 15 |
10 |
100 – 500 |
>99% |
| 20 |
14 |
100 – 500 |
>99% |
| 25 |
18 |
100 – 500 |
>99% |
Custom diameters and lengths available.
Typical Applications
- XRF, ICP, and other analytical sample preparation – melting and fusion
- Small-scale alloy and precious metal melting – gold, silver, platinum
- Crystal growth and material synthesis – high-temperature reactions
- Tube furnaces – alumina work tubes for uniform heating
- Thermogravimetric analysis (TGA/DSC) – sample crucibles
Why Choose FOVO Alumina Products?
- Batch-to-batch consistency – reliable purity and dimensions
- Cost-effective – high quality at competitive prices
- Custom manufacturing – non-standard crucibles and tubes
- Fast shipping – stock items shipped within 3–5 days
Need a standard size or a custom crucible/tube? Contact us for a quote.
