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BN1811 Boron Nitride Composite BN-SZ Ceramic

  • Catalog No. BN1811
  • Material BN+SiC+ZrO2
  • Purity >99%
  • Density 2.3-3.0 g/cm3
  • Shape Customized

Composite Ceramic BN-SZ Description

Boron Nitride is a kind of advanced synthesis ceramic that was sintered at a high temperature and high pressure by BN powder. It has many excellent properties including high-temperature resistance, high thermal conductivity, easy machining, and good lubricity, making BN an outstanding material.

Boron nitride composite ceramic BN-SZ, using silicon carbide and zirconia as a bonding agent, improves the thermal shock resistance and wear resistance of the product. It is commonly used as a separate ring for horizontal continuous casting and a nozzle made of amorphous ribbon. These products have stable chemical properties, high thermal shock resistance, and high corrosion resistance. They are widely used in molten metal contact.

Chemical stability
Good wear resistance
High thermal shock stability

Composite Ceramic BN-SZ Specifications

Grade BN-SZ
Compositions BN+SiC+ZrO2
Density 2.3-3.0 g/cm3
25°C Volume Resistivity >10^12 Ω·cm
Max. Service Temp. (°C) 900 (Oxygen)
1700 (Inert Gas)
1700 (High Vacuum)
Flexural Strength 100 Mpa
Compressive Strength 300 Mpa
Coefficient of Thermal Expansion (25-1000°C) 4.0 10^-6/K
Thermal Conductivity 40 W/mK

Composite Ceramic BN-SZ Applications

Used as a horizontal continuous casting separation ring
Used as metallurgical atomization and powder metallurgy atomizing nozzle
Used as a thin strip continuous casting side sealing board
Widely used in the contact of various molten metals


Our Boron Nitride Ceramic BN-SZ  is always carefully handled to prevent damage during storage and transportation and to preserve the quality of our product in its original condition.

Related Documents
Boron Nitride Ceramic Materials Brochure
Technical brochure for Boron Nitride Ceramic Materials, all grades. Revision March 2023.
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