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Cylindrical Alumina (Al₂O₃) Crucibles

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.

Cylindrical Alumina (Al₂O₃) Crucibles

Why Alumina Crucibles?

  • Chemical inertness — resistant to most acids, oxides and molten salts (except strong alkalis and hydrofluoric acid)
  • High-temperature stability — continuous service to ~1600 °C with low deformation
  • Hard & wear-resistant — high hardness and good dimensional stability after firing
  • Open-top & with lid — open-top sold per piece, with-lid sets sold per set
  • Custom sizes — OEM / ODM, custom dimensions and markings available
Material: 99% Al₂O₃ Max temp: 1600 °C Open-top: per piece With lid: per set

Common Specifications

Material
99% Aluminium oxide (Al₂O₃)
Max Service Temperature
1600 °C
Shapes
Cylindrical
Wall Thickness
1.5 – 4.5 mm (size dependent)
Capacity
0.3 – 178 ml
Customization
OEM / ODM, custom sizes

Stock Sizes & Prices

All 18 stock sizes listed below. Filter by shape, lid type or part number, sort any column, and add to cart directly.

Handling precautions:Alumina crucibles are suitable for neutral and oxidizing atmospheres up to 1600°C. Avoid rapid thermal shock and contact with strong alkalis at high temperature. Alumina Crucibles →

Cylindrical Crucibles — Open Top (No Lid)

L×W (mm) Height (mm) Wall (mm) Weight (g) Capacity Shape Lid Part No. Price Action

Cylindrical Crucibles — With Lid

L×W (mm) Height (mm) Wall (mm) Weight (g) Capacity Shape Lid Part No. Price Action

Cylindrical Alumina Crucibles — Frequently Asked Questions

What temperature can cylindrical alumina crucibles withstand?

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.

Do cylindrical alumina crucibles come with lids?

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.

What stock sizes are available and how are they specified?

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.

Can alumina crucibles be used for melting metals and alkaline melts?

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.

Manufacturer & Quality Assurance

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.

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