Skip to main content
Home - Reade
Back to All Products
Back to All Products

Cordierite (2MgO·2Al₂O₃·5SiO₂)

Cordierite, Magnesium-alumina silicate (2MgO·2Al₂O₃·5SiO₂), is made from talc mixed with clay and aluminum oxide. There are no known large deposits of natural cordierite. It has a low coefficient of thermal expansion, high mechanical strength, low density, and low dielectric loss.
Detailed Particle Size Information

Cordierite Powder Grade K-4948 is available in 1-5 microns

Cordierite Powder HC-11 is available at 6 micron avg.

Typical Chemical Analysis

Cordierite Powder K-4948
Al₂O₃= 34.61%, MgO=11.39%, and SiO₂= 53.8%

Cordierite Powder HC-11
Al₂O₃= 34.78%, MgO= 13.68%, and SiO₂= 49.33%

Typical Applications

Cordierite is used to manufacture kiln furniture, molded honeycomb-like catalyst supports in auto emission reduction devices, thick films, porous ceramics, feed-thru insulators, vitrified ceramics, high-frequency insulators, high-performance resistors, special furnace shapes, heating element supports, exhaust catalyst supports, burner tubes, refractory setters, and substrates.

Packaging Options

Bags, drums, and bulk bags


Cordierite Powder TSCA (SARA Title III) Status: Listed.

For further information, please call the EPA, Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902
Cordierite Powder
Alumina magnesium silicate CAS# 1302-88-1
Mullite CAS# 1302-93-8
Spinel CAS# 1302-87-8

Add Cordierite (2MgO·2Al₂O₃·5SiO₂) Powder To Your Quote

Select Specifications Available

  • Grade K-4948 Powder
  • HC-11 Powder


  • Units
  • Pieces
  • Grams
  • Troy Ounces
  • Pounds
  • Kilograms
  • Metric Tons
  • Net Tons
  • Feet
  • Meters
  • Inches
  • Centimeters
  • Millimeters
Not seeing what you're looking for? Request Product

Thank you for adding a product to your quote request!

Submit a RFQ

Review & Submit

View other Products

View Products