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Alumina Round, shallow, straight sides Crucible

Alumina Round Shallow Straight Sides Crucibles are available in 16 variations in Goodfellow's range of crucibles. Alumina crucibles are made of aluminum oxide, which has high hardness, strength, and corrosion resistance at high temperatures. These properties make alumina suitable for use as crucibles in applications like melting metals at high temperatures or calcining powder samples. The round shallow straight-sided shape allows for the easy stirring of samples while heating. With a wide range of sizes to choose from, Goodfellow's Alumina crucibles can accommodate a wide choice of sample volumes for laboratory and industrial use.
Formula: Al₂O₃
Percentage Purity: 99.8%
Capacity: 22ml
Outside Diameter: 52mm
Height: 14mm
CAS Number: 1344-28-1
UOM Code: 970-265-12
Legacy Code: AL608615
Distributor Code:
GF97026512
SKU: 1000022718
Product Code: AL60-CB-000115

Tolerances

Round, shallow, straight sides
Outside Diameter ±10%
Inside Diameter ±10%
External Height Overall ±10%

Tolerances

Round, shallow, straight sides
Outside Diameter ±10%
Inside Diameter ±10%
External Height Overall ±10%
Technical 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
Pultrusions
Element Value
Compressive strength( MPa ) 2200-2600
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