Silicon Carbide

At the end of late 19th century, when silicon is tried to be added into carbon as a catalyst to synthesize diamond, silicon carbide was accidentally discovered. Its hardness is second only to diamond. Silicon Carbide (SiC) is a typical covalently bonded compound. 78% of the total energy of Si-C bond is covalently bound and 22% is ionic. Silicon Carbide (SiC) is almost non-existent in nature, only occasionally found in meteorites.

Material Performance

  Mechanical properties: high hardness, high strength, high elastic modulus, low friction coefficient.
  Chemical characteristics: strong wear resistance, corrosion resistance, acid and alkali resistance, strong anti-oxidation.
  Thermal features: low coefficient of thermal expansion, high thermal conductivity, high temperature resistance.


High-performance ceramic, semiconductor material, refractory material, wear-resistant material, corrosion resistant material, abrasives and grinding tool, metallurgical additives.

Application Fields

Our silicon carbide seal ring is mainly used for mechanical seal industry. Silicon carbide seal ring is the most critical component of mechanical seal as the friction pair material of rotary and stationary ring.
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