INDUSTRIAL
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®SIGRAFLEX
Industrial Graphite


PROPERTY
UNITS
VALUE
Bulk Density
lb/ft³ (gm/cc)
70.0 (1.1)
Thermal Conductivity
"a" Direction (parallel to surface)
"c" Direction (normal to surface)

BTU-in/hr-ft² °F
BTU-in/hr-ft² °F

1,532
48
Thermal Expansion
70-1800°
(bulk density 1.7-1.9gm/cc)


10-6/ °F


2.8 - 4.4
Hardness (Shore Scleroscope)
At 1.0 gm/cc
At 1.3 gm/cc

-
-

30
40
Tensile Strength
At 1.1 gm/cc and .015" foil

PSI

500 min.
Permeability
Air

cm²/gm

<0.00002
Emissivity
At 932°F

-

0.4
Sublimination Temperature
(does not melt)

°F

6,600
Temperature Limit (in air)
°F
1,000
Compression  
40%
Recovery  
20%
Creep Relaxation  
<5%