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Life Sciences Graphite Grades

Our high-strength, radiopaque material is ideal for internal medical applications.

Our graphite materials have been a mainstay in the implantable medical device market for over 40 years. The unique tungsten blended material combines the quality of our high-strength premium graphite with the added benefit of being radiopaque. These qualities make our materials the only choice for pyrocarbon-coated substrates used by replacement joint and mechanical heart valve manufacturers around the world.

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  • Process
AXF-5Q10W Graphite
AXF-5Q10W Graphite
AXF-5Q10W Graphite
See specifications for AXF-5Q10W implantable graphite. Graphite with tungsten impregnation suitable for U.S. FDA Class II and III applications.
Apparent Density, g/cm3 (lb/in3)
  • 1.95 (0.070)
 Coefficient of Thermal Expansion, µm/m °C (µin/in °F)
  • 7.7 (4.3)
 Electrical Resistivity, µΩ-cm (µΩ-in)
  • 600 (1,500)
 Flexural Strength, MPa (psi)
  • 75 (11,000)
AXF-5Q Graphite
AXF-5Q Graphite
AXF-5Q Graphite
See specifications for AXF-5Q implantable graphite. Graphite without tungsten impregnation suitable for U.S. FDA Class II and III applications.
Shore Hardness
  • 74
 Apparent Density, g/cm3 (lb/in3)
  • 1.78 (0.064)
 Coefficient of Thermal Expansion, µm/m °C (µin/in °F)
  • 7.9 (4.4)
 Compressive Strength, MPa (psi)
  • 138 (20,000)
AXF-5Q20W Graphite
AXF-5Q20W Graphite
AXF-5Q20W Graphite
See specifications for AXF-5Q20W implantable graphite. Graphite with a higher tungsten impregnation suitable for U.S. FDA Class II and III applications.
Apparent Density, g/cm3 (lb/in3)
  • 2.10 (0.076)
 Coefficient of Thermal Expansion, µm/m °C (µin/in °F)
  • 7.7 (4.3)
 Electrical Resistivity, µΩ-cm (µΩ-in)
  • 610 (1,550)
 Flexural Strength, MPa (psi)
  • 68 (10,000)
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