Note: This is a variation of Dense Ceramics – Alumina, Mullite, & Zirconia (3200ºF – 3600ºF Range).

Fully Dense Porcelain, Mullite, Alumina, Zirconia, Silicon Carbide, and Tungsten Carbide are gas-tight high-fired ceramics capable of withstanding operating temperatures of 2550ºF (1400ºC) to 3182ºF (1750ºC). These compositions are available in the forms of extruded and cast tubing, rods, plates, fish spine beads, lab ware, and custom molded shapes.


Density ( g/cc )2.40
Flexural Strength (MOR) at 20ºC ( MPa )130
Flexural Strength (MOR) at 20ºC ( psi )19 x 103
Elastic Modulus at 20ºC ( psi )15 x 103
Elastic Modulus at 20ºC ( GPa )104
Compressive Strength at 20ºC ( MPa )590
Compressive Strength at 20ºC ( psi )86
Knoop Hardness at 1000gm ( kg/mm² )600
Knoop Hardness at 1000gm ( GPa )5.9
Rockwell Hardness at 45 N60
Fracture Toughness K(Ic)2 MPa m1/2
Thermal Conductivity at 20ºC ( W/m-ºK )5.0
Coefficient of Thermal Expansion at 25-1000ºC ( Per ºC )9.5 x 10-6
Maximum Use Temperature ( ºC )1400
Dielectric Constant at 1 MHz & 25ºC5.9
Dielectric Loss (tan delta) at 1 MHz & 25ºC0.0024
Water Absorption ( % )0
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