Specialty Ceramics

Saint-Gobain Performance Ceramics & Refractories’ specialty ceramics' products help customers to address unique challenges in thermal and chemical processing, heat exchangers, industrial metrology, temperature sensing, brazing, mechanical seals, semiconductor wafer processing, sandblasting and renewable energy generation applications.


The specialty ceramics portfolio consists of a wide range of products, sold as well-known brands:

  • Hexoloy® sintered silicon carbide
  • Norbide® hot pressed boron carbide
  • Noralide® hot pressed silicon nitride
  • Silit® siliconized silicon carbide
  • Advancer® N-Durance, Refrax 20E nitride bonded silicon carbide
  • Alundum® Aluminum oxide materials
  • Magnorite® MgO materials
  • Durafrax® Alumina materials
  • Lithafrax™ Lithium Aluminum Silicate inorganic fillers


Saint-Gobain Performance Ceramics & Refractories’ utilize materials expertise, innovative designs, creative engineering and precision manufacturing processes to deliver reliable solutions to global customers in automotive, chemical, aerospace, non-ferrous metals, nuclear and other renewable energy, industrial pumps and sealing industries; as well as OEM equipment makers and machine shops.

Solution By Application

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Thermal Processing

Structural Components for Kilns and Furnaces

Saint Gobain Specialty Ceramics' products allow customers to solve tough

Saint-Gobain Performance Ceramics & Refractories’ thermal processing products include a range of reliable, high performance and cost-effective options.

Hexoloy® SA sintered silicon carbide, Silit® SK SiSiC and Crystar® 2000 Recrystallized SiC products are excellent choices for thermal processing applications, due to their very high thermal conductivity, low thermal expansion, light weight and high strength at high temperatures.

Example applications include:

  • Rapid thermal treatment of fibers and crystals
  • High temperature analytical equipment (dilatometers and TGA) components
  • Structural components for kilns and furnaces

Key Properties Of Sintered Silicon Carbide Material

  Density Coefficient of Thermal Expansion
Flexural Strength
Thermal Conductivity
Elastic Modulus
Hexoloy® SA (Sintered SiC) 3.15 4.0 380 125 410



What applications are Crystar® 2000 best suited for?

Crystar® 2000 Recrystallized SiC is an excellent material choice where high thermal shock resistance is required, for example, exposure to a flame. Its load bearing capability is lower than that of Hexoloy® and Silit® SK SiC due to its higher porosity.

Which product offers the most optimal combination of thermal conductivity, high load bearing capability and high chemical stability?

Both Hexoloy® sintered SiC and Silit® SK SiSiC offer these properties. While Silit® SK is limited to operating temperatures of 1,350°C, Hexoloy® performs well at temperatures up to 1,650°C in oxidizing conditions.

Which silicon carbide product is best suited to very precise temperature control in a furnace?

All of Saint-Gobain Performance Ceramics & Refractories’ SiC products allow precise temperature control due to high thermal conductivity. However, it is important to consider other factors such as thermal cycling, environmental chemistry, and mechanical loading.