Alumina Cylindrical Crucible

The Alumina Cylindrical Crucible is a part of Goodfellow's range of crucibles for high temperature applications. Available in a variety of sizes, with diameters between 10 mm and 150 mm, and heights between 10 mm and 300 mm, there are 40 different variations in total. The high purity alumina construction gives the crucibles excellent thermal shock resistance and chemical inertness. Typical applications include container vessels for high temperature melting and reactions, such as in metallurgy, glass making, and crystal growth.

Formula: Al₂O₃
Percentage Purity: 99.8%
Capacity: 2.5ml
Outside Diameter: 16mm
Inside Diameter: 13.5mm
Height: 21mm
CAS Number: 1344-28-1
UOM Code: 106-670-20
Legacy Code: AL608914
Distributor Code: GF10667020

SKU: 1000019695

Product Code: AL60-CB-000114

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Tolerances

Cylindrical

Outside Diameter		±10%
Inside Diameter		±10%
Height		±10%

Tolerances

Cylindrical

Outside Diameter		±10%
Inside Diameter		±10%
Height		±10%

Technical Data Sheet

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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