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TRA

Particle Size   Hardness
microns 5 SSH 72
µ·inches 200    
Coefficient of Thermal Expansion Electrical Resistivity
microns/m °C 7.9 µ·ohm·cm 1,560
µ·in/in °F 4.4 µ·ohm·in 615
Compressive Strength Apparent Density
N/mm2 118 g/cc 1.72
psi 17,100 lb/in3 0.0621
Flexural Strength Thermal Conductivity
N/mm2 75 watts/m K 85
psi 10,900 BTU·ft/hr·ft2·°F 50
Tensile Strength (1) Oxidation Threshold (2)
N/mm2 53 °C 450
psi 7,500 °F 840

(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.