By Material

PHOTO:SiC Silicon Carbide


Silicon Carbide

Silicon carbide, mainly consisting of SiC, is the most corrosion-resistant ceramic, used in mechanical seals and pump parts. It maintains its strength up to 1400°C.


  • Silicon carbide maintains its strength even at temperatures up to 1400°C.
  • Notable features of this material are extremely high thermal conductivity and electrical semiconductivity.
  • Silicon nitride has high hardness and corrosion reisistance due to its chemical and physical stability.


Dimensional precision achieved by machining

When dimensional precision is required for machined ceramics, Kyocera is capable of achieving the tolerances as shown in the table below. If greater tolerances are required, please consult us.

■MACHINING DIMENSIONAL PRECISION(Data are in mm unless otherwise specified)

1.Ground ceramic blocks and plates
IMAGE:Standard tolerance chart of ground ceramic blocks and plates
2.Round and Square Bars
IMAGE:Standard tolerance chart of round and square bars


Ultra-precision is possible with Kyocera's unique techniques.
Precision machining is affected by shape and material.
Some practical examples are shown in the table below.
IMAGE:Machining accuracy chart of shape and material
* Surface roughness depends on the material. The data shown hear indicates where alumina is used.


IMAGE:Silicon carbide material characteristic chart
*The values are typical material properies and may vary according to products configuration and manufacturing process.
  For more details, please feel to contact us.

  • IMAGE:Bulk density chart
  • IMAGE:Hardness chart
  • IMAGE:Flexural strength chart
  • IMAGE:Compressive strength chart
  • IMAGE:Young's modulus chart
  • IMAGE:Flexural strength vs. temperature chart
  • IMAGE:Thermal expansion chart
  • IMAGE:Thermal conductivity chart
  • IMAGE:Heat shock resistance chart
  • IMAGE:Max. use temperature chart

IMAGE:Chemical resistance chart (30 min  boiling)

IMAGE:Unit conversion table of stress & Unit conversion table of thermal conductivity

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