High-purity 99% alumina (Al₂O₃) cylindrical crucibles for ash determination, calcination, and general high-temperature melts up to 1600 °C.
18 stock sizes in cylindrical form, open-top or with lid. Custom sizes and OEM on request.
All 18 stock sizes listed below. Filter by shape, lid type or part number, sort any column, and add to cart directly.
| L×W (mm) | Height (mm) | Wall (mm) | Weight (g) | Capacity | Shape | Lid | Part No. | Price | Action |
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| L×W (mm) | Height (mm) | Wall (mm) | Weight (g) | Capacity | Shape | Lid | Part No. | Price | Action |
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Our 99% alumina cylindrical crucibles are rated for continuous use up to 1600°C in air, and up to ~1700°C for short-term firing. Always confirm the exact rated temperature for your specific process atmosphere.
Yes. We stock both open-top (no lid) and lidded versions across 18 standard sizes. Open-top crucibles are convenient for pouring and sampling; lidded crucibles better retain samples and reduce contamination during sintering or ash testing.
We offer 18 stock sizes specified by outer diameter × height in millimetres (OD×H), with wall thickness and capacity listed for each. Custom diameters, heights and wall thicknesses can be produced from your drawing.
Alumina crucibles are ideal for general high-temperature work — sintering, ash testing, thermal analysis and many metal melts in neutral or oxidizing atmospheres. They react with strong alkaline melts, molten alkali carbonates and fluoride fluxes; for those, MgO or zirconia is preferred. Contact us for a compatibility check on your specific melt.
Scuvette has manufactured high-purity laboratory ceramics and quartz optics since 2010. Crucibles are produced under an ISO 9001:2015 quality management system (Certificate NOA2408337) and are RoHS compliant (SGS report TAOEC26010238501). No minimum order quantity; custom sizes and OEM service are available.