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Materials
Junty > Material > Carbon Graphite
 
            
mechinical seal face seal ring
Carbon graphite is used as a soft material in a wide range of applications, from wet running to dry running. It provides:

· Excellent natural lubricity
· Good thermal conductivity
· Outstanding thermal shock resistance
· Good corrosion resistance

Mechanical carbon has been developed in different grades to meet various service conditions:

· Resin bonded carbon – an economical, pressed to size material for large volume requirements.
· Resin impregnated carbon – Furan resin, Phenolic resin, or Epoxy resin are used as filler to decrease the porosity of carbon.
· Metal impregnated carbon – Antimony, Copper, or Babbitt alloys are used as filler for applications requiring higher working temperatures or higher strength.

mechinical seal face seal ring Carbon Graphite (resin-impregnated metal-inpregnated)
   
Parameter Unit J1118F J2163K J2163D J3120P J3120B
Impregnation - Phenolic Resin Furan Resin Antimony Copper Alloy Babbitt
Hardness - HS 85 HS 90 HS 95 HS 80 HS 65
Compressive Strength MPa 210 220 260 240 150
Flexural Strength MPa 65 75 95 75 60
Porosity % 1.0 - 2.0 1.0 - 2.0 2.5 2 3
Coefficient of Thermal Expansion 1 x 10 -6 / K 5 5.5 6 6.2 5
Maximum Working Temperature oC 200 200 400 400 200
 
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