Images are for guidance only and might not represent the final product.
Formula: Al₂O₃
Form: Rod
Material: Aluminum Oxide
CAS Number: 1344-28-1
Commodity: Ceramics
Alumina Rod is composed of high-purity Al₂O₃ ceramic, offering exceptional hardness, high-temperature resistance, and chemical inertness. Its low thermal conductivity and excellent electrical insulation make it ideal for advanced engineering and high-temperature industrial use. The rods are widely applied in aerospace, electronics, metallurgy, and precision instrumentation, where dimensional stability under thermal stress is essential. Specific uses include serving as structural supports in high-temperature furnaces, precision insulators in electronic assemblies, and wear-resistant components in mechanical systems. Withstanding temperatures exceeding 1600 °C without deformation or contamination, Alumina Rod supports consistent performance in aggressive environments. In research and innovation, it facilitates experiments requiring thermal and electrical isolation, enabling the development of new materials and high-performance systems. Its durability, coupled with minimal reactivity, makes it an indispensable material in scientific and industrial applications requiring longevity and purity.
each

We are collecting your products, please wait!...

Shipping restrictions and charges
may apply for some hazardous materials.

Tolerances

Rod
Diameter +20% / -10%

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

Can't find what you're looking for? For customized options

Other Customers Purchased