High-purity (99% Al₂O₃) corundum cylindrical crucibles with a precision-fit inner-convex lid, for high-temperature sintering, ashing and melting in muffle furnaces, sintering furnaces and high-temperature ovens. Choose from 37 sizes, from Ø 10 × 10 mm (0.4 mL) to Ø 50 × 50 mm (70 mL). Each crucible comes with its lid.
Key Features
99% high-purity alumina: dense, non-porous body with ultra-low impurities, so samples are not contaminated.
Extreme temperature resistance: long-term working temperature up to 1600 °C. Fired at 1800 °C.
Thermal shock resistance: resists cracking under rapid heating and cooling. Reusable through repeated temperature cycles.
Chemically inert: resists acids, alkalis and molten metal corrosion.
Inner-convex lid: fits closely to the inner wall to stop splashing, volatilization and cross-contamination.
Uniform wall thickness for even heating and good repeatability
Smooth inner and outer surfaces that are easy to clean
Slip / die casting for high dimensional accuracy and mechanical strength
Applications
Material sintering, ash content determination, metallurgical sample melting, catalyst calcination, and other high-temperature laboratory work.
Available Sizes (outer diameter × height)
Diameter
Height
Capacity
Ø10 mm
10 mm
0.4 mL
Ø10 mm
20 mm
0.8 mL
Ø10 mm
40 mm
1.5 mL
Ø10 mm
50 mm
2 mL
Ø10 mm
60 mm
2.5 mL
Ø11 mm
20 mm
1.2 mL
Ø12 mm
12 mm
0.8 mL
Ø12 mm
40 mm
3 mL
Ø13 mm
16 mm
1 mL
Ø14 mm
45 mm
4 mL
Ø15 mm
70 mm
5 mL
Ø16 mm
20 mm
2 mL
Ø16 mm
28 mm
3.5 mL
Ø16 mm
50 mm
5 mL
Ø16 mm
56 mm
8 mL
Ø16 mm
70 mm
9 mL
Ø18 mm
26 mm
3.5 mL
Ø18 mm
40 mm
7 mL
Ø19 mm
35 mm
6.5 mL
Ø19 mm
58 mm
11 mL
Ø20 mm
10 mm
1.5 mL
Ø20 mm
18 mm
3 mL
Ø20 mm
20 mm
3 mL
Ø20 mm
50 mm
9 mL
Ø23 mm
27 mm
6 mL
Ø25 mm
25 mm
8 mL
Ø25 mm
60 mm
20 mL
Ø28 mm
17 mm
7.5 mL
Ø28 mm
58 mm
25 mL
Ø30 mm
10 mm
3 mL
Ø30 mm
20 mm
7 mL
Ø30 mm
25 mm
9 mL
Ø30 mm
28 mm
12 mL
Ø30 mm
30 mm
13 mL
Ø30 mm
55 mm
23 mL
Ø30 mm
100 mm
52 mL
Ø50 mm
50 mm
70 mL
Material: 99% Al₂O₃. Max. long-term use temperature: 1600 °C.
