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Alumina Rod

Our Alumina Rods are a selection of high-purity alumina ceramic rods with 53 variations to choose from. These rods boast high hardness, exceptional electrical insulation, and superior resistance to wear and corrosion. Their distinctive properties make Alumina Rods popular across a multitude of scientific and industrial purposes, including applications like electrical insulators, wear-resistant components and crucibles for molten metal processing. This versatile ceramic range of rods promotes innovation across a wide array of industries and disciplines.
Formula: Al₂O₃
Percentage Purity: 99%
Diameter: 12.7mm
Length: 1000mm
CAS Number: 1344-28-1
UOM Code: 275-895-84
Legacy Code: AL607978
Distributor Code:
GF27589584
SKU: 1000023855
Product Code: AL60-RD-000178

Tolerances

Rod
Diameter +20% / -10%

Tolerances

Rod
Diameter +20% / -10%
Technical Data Sheet
Safety Data Sheet
$1,069.65
each
  • Buy 5 for $866.41 each and save 19%
  • Buy 10 for $791.54 each and save 26%
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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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