Density / Specific gravity
Unit
Graphite Sheet
Copper (Copper)
Density
g/cc
0.7~1.9
8.96
Thermal Conductivity (Vertical direction)
W/mK
5~20
380
Thermal Conductivity (horizontal direction)
300~400
Heat diffusion
cm2/s
3
1.2
Thermal expansion (vertical)
10-6/oC
2~3
17
Thermal expansion (horizontal)
6~7
Burning point
oC
3000 (Sublimation)
1083 (Dissolves melts)
Loss on ignition(350oC loss weight)
Wt%
0.12
-
Tensile strength
MPa
4~5
Compressive strength
The determination may not
Compression rate
%
25~35
Recovery ratio
10
Carbon content
99.8
Ashes
SiO2、Al2O3
Electric resistivity
μΩ cm
500~800
1.67
