SIGRASIC® Carbon Fiber Reinforced Silicon Carbide Short Fibers

Want to keep this datasheet? Save it now in your required format


SIGRASIC products derive their extraordinary properties from carbon fiber-reinforced silicon carbide (C/SiC) - a composite material that combines carbon fibers within a ceramic matrix to maximize the properties of both materials.

The benefits of SIGRASIC are:

  • Hard and ductile instead of being brittle
  • High resistance to most corrosive and abrasive media
  • Near net shape processing by in situ joining
  • Adjustable properties to meet specific customer requirements
  • High thermal-mechanical fatigue and high thermal shock resistance
  • High heat resistance – up to 1200 °C
  • Technology established within automotive serial production of brake disks

Diese Materialdaten wurden von SGL Carbon zur Verfügung gestellt

Alle Daten beziehen sich auf Raumtemperatur soweit nicht anderweitig spezifiziert. SI Einheiten werden verwendt soweit nicht anderweitig spezifiziert.
Äquivalente Standards sind ähnlich zu einem oder mehreren Standards die der Anbieter angegeben hat. Manche äquivalente Standards können strikter sein oder außerhalb der Bedingungen des ursprünglichen Standards.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.





2.1 - 3.0 g/cm³

Show Supplier Material materials with Dichte of 2.1 - 3.0 g/cm³




50.0 - 90.0 MPa

Show Supplier Material materials with Biegefestigkeit of 50.0 - 90.0 MPa


0.3 GPa

Show Supplier Material materials with Biegemodul of 0.3 GPa

0.5 GPa

Show Supplier Material materials with Biegemodul of 0.5 GPa


30.0 - 60.0 GPa

Show Supplier Material materials with Elastizitätsmodul of 30.0 - 60.0 GPa



Koeffizient der thermischen Ausdehnung

200 °C

1.8e-06 - 2.3e-06 1/K

Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.8e-06 - 2.3e-06 1/K


20.0 - 60.0 W/(m·K)

Show Supplier Material materials with Wärmeleitfähigkeit of 20.0 - 60.0 W/(m·K)

Technological properties

Application areas

Application examples for SIGRASIC®: NASA sensor carrier designed for low weight, high precision and high stiffness; pump impeller for highly corrosive and abrasive media; (high performance) clutch disk mass produced for cars/vehicles with excellent wear and strength properties; ballistic protection with complex shaped designs and high hardness.


Technical properties are customizable for individual purposes, base materials can be designed with the relevant content and type of carbon fibers.

Processing methods

C/SiC is manufactured by infiltrating a carbon fiber-reinforced carbon body with silicon. Due to near net shape processing, complex machining can be performed cost-effectively early in the process. Final ceramic grinding can be used locally when tight tolerances are required. By suitable adjustment of the material and process parameters, the product characteristics can be matched to the intended use of the SIGRASIC component.