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Cordierite

Its good thermal shock properties lend this material to be used in refractory applications. Its low thermal expansion and thermal conductivity make it a good choice for fixtures and other applications.

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Property Charts & Safety Data Sheets
Property ChartsCordierite
Master Ceramics Property ChartFull Color
Printer Friendly - Color
Printer Friendly - B&W
Safety Data SheetsCordierite Ceramic (Refractory Grade)
Unfired Cordierite

Materials Property Chart
 Silicates
 PropertyASTM MethodUnitsCordierite
GeneralColor----Orange-Tan
Gas Permeability--atms-cc/secPorous
Water AbsorptionC 20-97%10
MechanicalDensityC 20-97g/cc2.00
HardnessVickers 500gmGPa (kg/mm2)5.8 (590)
Hardness--R45N50
Flexural Strength (MOR)
(3 point) @ RT		F417-87MPa (psi x 10366 (9.5)
Tensile Strength @ RT--MPa (psi x 103)19 (2.7)
Compressive Strength @ RT--MPa (psi x 103)165 (24)
Elastic ModulusC848GPa (psi x 106)103 (15)
Poisson's RatioC848--0.31
ThermalC.T.E. 25 - 100° CC 372-96x 10-6/C2.1
C.T.E. 25 - 300° CC 372-96x 10-6/C2.5
C.T.E. 25 - 600° CC 372-96x 10-6/C3.0
Thermal Conductivity @ RTC 408W/m K3
Max Use Temp--Fahrenheit (°F)2350
--Celsius (°C)1290
 ElectricalDielectric Strength (.125" Thick)D 149-97AV/mil120
Dielectric Constant @ 1 MHzD 150-98--5.5
Volume Resistivity, 25°CD 257ohms-cm> 1 x 1014
Note: The information in this data sheet is for design guidance only. STC does not warrant this data as absolute values. Forming methods and specific geometry could affect properties. Slight adjustments can be made to some of the properties to accommodate specific customer requirements. Most of the dense materials in the table are resistant to mechanical erosion and chemical attack. STC has performed ASTM testing qualification for certain compositions, in accordance with ASTM D2442. Please consult our technical staff for appropriate material and specific test results.