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Semiconductor Graphite
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  • Shore Hardness
  • Apparent Density, g/cm3 (lb/in3)
  • Compressive Strength, kg/cm2 (psi)
  • Compressive Strength, MPa (psi)
  • Electrical Resistivity, µΩ-cm (µΩ-in)
  • Flexural Strength, kg/cm2 (psi)
  • Flexural Strength, MPa (psi)
  • Oxidation Threshold, °C (°F)
  • Pore Size, µm (µin)
  • Shore Hardenss
  • Tensile Strength, MPa (psi)
  • Thermal Conductivity, W/m-K (BTU-ft/hr/ft2 °F)
  • Industry
  • Process
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)
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)
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)
See our specifications for our AXF-3Q five micron graphite, ideal for ultrasonic applications.
Shore Hardness
  • 80
Apparent Density, g/cm3 (lb/in3)
  • 1.76 g/cm3 (0.064 lb/in3)
Compressive Strength, MPa (psi)
  • 156 MPa (20,600 psi)
Electrical Resistivity, µΩ-cm (µΩ-in)
  • 1815 µΩ-cm (715 µΩ-in)
GF-LT offers the same attributes as POCO®’s GLASSMATE® GF in addition to improved wear and erosion resistance. The higher hardness of this material provides superior polishing capabilities to a very high gloss surface finish.
Shore Hardness
  • 96
Apparent Density, g/cm3 (lb/in3)
  • 1.77 (0.064)
Coefficient of Thermal Expansion, µm/m °C (µin/in °F)
  • 8.5 (4.7)
Compressive Strength, MPa (psi)
  • 155 (22
  • 500)
This is the base grade of POCO®’s GLASSMATE® Glass Forming materials with high strength and durability for glass forming applications. GF materials provide higher product yield through improved glass surface finishes and a match to high CTE glass products.
Shore Hardness
  • 74
Apparent Density, g/cm3 (lb/in3)
  • 1.74 (0.063)
Coefficient of Thermal Expansion, µm/m °C (µin/in °F)
  • 8.1 (4.5)
Compressive Strength, MPa (psi)
  • 130 (18,800)
POCO®’s GLASSMATE® GF-XL material offers a tighter microstructure and higher hardness over GF to improve wear resistance and provide improved glass surface quality. The smaller particle size of GF-XL allows for increased material strength and reduced porosity.
Shore Hardness
  • 88
Apparent Density, g/cm3 (lb/in3)
  • 1.74 (0.063)
Coefficient of Thermal Expansion, µm/m °C (µin/in °F)
  • 8.1 (4.5)
Compressive Strength, MPa (psi)
  • 162 (23,500)
  • 500)
EDM-AF5® is an Angstofine class of 1 micron grain size EDM graphite. EDM-AF5 is ideal for electrodes requiring very fine details.
Particle Size, µm
  • <1
Compressive Strength, kg/cm2 (psi)
  • 1554 (22100)
Electrical Resistivity, µΩ-m (µΩ-in)
  • 21.6 (850)
Flexural Strength, kg/cm2 (psi)
  • 1019 (14500)
POCO® EDM-4® is an Ultrafine class of 4 micron grain size EDM graphite. This grade is the premier offering in the Ultrafine grain classification.
Particle Size, µm
  • <4
Compressive Strength, kg/cm2 (psi)
  • 1511 (21
  • 500)
Electrical Resistivity, µΩ-m (µΩ-in)
  • 3.2 (500)
Flexural Strength, kg/cm2 (psi)
  • 1230 (17
  • 500)
This grade is in the isotrophic Ultrafine class of 5 micron grain size EDM graphite. EDM-2® is ideal for electrodes requiring a fine finish.
Particle Size, µm
  • <5
Compressive Strength, kg/cm2 (psi)
  • 1188 (16
  • 900)
Electrical Resistivity, µΩ-m (µΩ-in)
  • 16 (620)
Flexural Strength, kg/cm2 (psi)
  • 787 (11
  • 200)
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