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DFP

Particle Size   Hardness
microns 4 SSH 74
µ·inches 160    
Coefficient of Thermal Expansion Electrical Resistivity
microns/m °C 8.1 µ·ohm·cm 1,500
µ·in/in °F 4.5 µ·ohm·in 600
Compressive Strength Apparent Density
N/mm2 140 g/cc 1.77
psi 20,000 lb/in3 0.0640
Flexural Strength Thermal Conductivity
N/mm2 85 watts/m K 95
psi 12,000 BTU·ft/hr·ft2·°F 55
Tensile Strength (1) Oxidation Threshold (2)
N/mm2 60 °C 440
psi 8,500 °F 820

(1) Estimated at 70% of flexural strength.
(2) Temperature that results in 1% weight loss in 24 hours. Oxidation threshold increases by approximately 100� C if graphite is purified.