REX Graphite Rings are manufactured normally in a range of densities from 1.2 g/cc to 1.8 g/cc with carbon content ranging from 99% to 99.85% Corrosion and Oxidation resistant grades and PTFE impregnated grades also supplied. Flexible and highly impermeable to gases and liquids. Metal tipped graphite molded rings to customer drawings are available for high pressure/anti extrusion applications. These rings have high thermal conductivity and don’t contain any Adhesives or Binders and have self lubricating properties and is therefore virtually maintenance free.
Standard Carbon Content : 99%
Density Range : 1.2g/cc to 1.8g/cc.
Temperature : -200°C to + 2,800°C in inert or reducing conditions.
-200°C to + 500°C in oxidising conditions.
Tensile strength : ASTM F152 >5.2Mpa
Compressibility : 47%
Recovery : ASTM F36/A >9%
Chloride content : 50 ppm maximum.
Suphur content : 1300 ppm
Fluoride content :
Ash content : < 1.0 %

REX Graphite Rings are manufactured normally in a range of densities from 1.2 g/cc to 1.8 g/cc with carbon content ranging from 99% to 99.85% Corrosion and Oxidation resistant grades and PTFE impregnated grades also supplied. Flexible and highly impermeable to gases and liquids. Metal tipped graphite molded rings to customer drawings are available for high pressure/anti extrusion applications. These rings have high thermal conductivity and don’t contain any Adhesives or Binders and have self lubricating properties and is therefore virtually maintenance free.
Standard Carbon Content : 99%
Density Range : 1.2g/cc to 1.8g/cc.
Temperature : -200°C to + 2,800°C in inert or reducing conditions.
-200°C to + 500°C in oxidising conditions.
Tensile strength : ASTM F152 >5.2Mpa
Compressibility : 47%
Recovery : ASTM F36/A >9%
Chloride content : 50 ppm maximum.
Suphur content : 1300 ppm
Fluoride content :
Ash content : < 1.0 %