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Alumina Rectangular Crucible

Available in 12 variations, the Alumina Rectangular Crucible is one of Goodfellow's wide range of crucibles. It is made from aluminum oxide, which has excellent thermal shock resistance, high melting point and high purity. These properties make alumina crucibles ideal for high temperature applications like holding molten metals for casting or firing ceramics. The rectangular shape allows optimal use of furnace space. Alumina crucibles from Goodfellow can be used in research labs or industrial production of metals, ceramics and other high temperature materials.
Formula: Al₂O₃
Percentage Purity: 99.8%
Capacity: 36.5ml
External Height: 15mm
External Length: 73mm
External Width: 52mm
CAS Number: 1344-28-1
UOM Code: 599-344-71
SKU: 1000023082
Product Code: AL60-CB-000417


External Width ±10%
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No Minimum order Approx. 2 weeks leadtime Free technical support *Free delivery worldwide
  • Buy 5 for $69.11 each and save 19%
  • Buy 10 for $63.14 each and save 26%

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External Width ±10%
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Technical Data Sheet
Safety Data Sheet

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Material Properties for Ceramics

Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alkalis Good
Halogens Good
Metals Good
Electrical Properties
Element Value
Dielectric constant 9-10.1
Dielectric strength( kV mm⁻¹ ) Oct-35
Volume resistivity( Ohmcm ) >10¹⁴@25
Physical Properties
Element Value
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 3.9
Thermal Properties
Element Value
Melting point( C ) 2100
Upper continuous use temperature( C ) 1700
Specific heat( J K⁻¹ kg⁻¹ ) 850-900@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 26-35@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 8@20-1000°C
Mechanical Properties
Element Value
Tensile modulus( GPa ) 300-400
Hardness - Knoop( kgf mm⁻² ) 2100
Hardness - Vickers( kgf mm⁻² ) 1500-1650
Shear strength( MPa ) 330
Tensile strength( MPa ) 260-300
Element Value
Compressive strength( MPa ) 2200-2600
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