Alumina Crucibles: 300 x 49 x 30 mm Combustion Boat for 80mm OD Tubes

One high purity Alumina combustion boats for chemical calcining, metal casting, and ceramic sample preparation

Outside Dimension: Length: 305mm, Width: 49mm +/- 4mm, Height: 30mm

Internal Dimension: Length: 298mm, Width: 36mm, Depth:26mm

This Alumina combustion boat is for use with 80 mm O.D. tubes.

Capacity:   ~200 ml

Shape: as the picture

Purity: Al2O3 > 99.5%;  Fe2O3 < 0.01%

100% impervious

Density: > 3.8 g/cm3

Max. working temperature: 1750°C or 3180°F
Note: Never heat and cool faster than 5°C/min. Otherwise, the crucible may crack.
Alumina crucibles are made by casting method, which does not have precise dimensions.