Medium grain graphite blocks are ideally suited for large parts or components used for graphite furnace, polycrystalline silicon furnace, casting mold and crucibles.

Unlike high purity graphite and isostatic graphite materials, medium grain graphite materials don’t need to be meshed together with other pieces.

Consequently, it will be easier to install and more cost efficient due to a low consumption and leakage risk.


ModelFlexural StrengthCompressive StrengthSpecific Electrical ResistanceAsh ContentGrain SizeBulk DensityC.T.E.(to 100。C)Thermal Conductivity
Graphite Round17368.
Graphite Block17.53880.090.81.752.4140


  • Good Machinability
  • Strong Thermal Stability
  • Low Expansion Ratio
  • Low Thermal expansion
  • Excellent Chemical Resistance acid, alkali, and organic solvents.
  • Excellent Electrical Conductivity and Thermal Conductivity

  • Polycrystalline silicon growth furnace
  • Casting die
  • Crucible
  • EDM
  • Hot pressing/ sintering
  • Semi-conductors
  • Vacuum furnaces
  • Heat elements