| TYPICAL GRAFOIL® PROPERTIES |
| PROPERTIES |
ENGLISH |
METRIC |
TYPICAL THERMAL PROPERTIES |
| Functional/Temperature |
|
|
| Range |
|
|
| Neutral or Reducing |
|
|
| Atmosphere |
-400 to 5400° F |
-200 to 3000° C |
| Oxidizing Atmosphere |
|
|
| Standard Grades |
-400 to 850° F* |
-200 to 450° C* |
| Oxidation Resistant |
|
|
| Grades |
-400 to 975° F* |
-200 to 525° C* |
| Thermal Conductivity |
|
|
| Along Length & Width |
960BTU-in/ft²·H·°F |
140W/M·K |
| Through Thickness |
36BTU-in/ft²·H·°F |
5W/M·K |
|
* The fluid temperature in an oxidizing atmosphere may
considerably exceed the indicated temperature with our
oxidation of the Grafoil® providing that the bulk
temperature of the Grafoil® gasket is below these
temperatures or that the fluid being handled does not
come into direct contact with the graphite. EXAMPLE:
a metal spiral-wound gasket with a Grafoil® filler
material.
|
**NUCLEAR RADIATION RESISTANCE |
| EXPOSURE LEVELS |
RESULTS |
| † 5.5 X 10²¹ NVT @ 1000° C |
No Apparent Effect |
| 1.5 x 10 RADS Gamma Radiation |
|
| (1.5 x 10¹¹ ERGS/GRAM) |
No Apparent Effect |
| ** Source: Oak Ridge National Laboratory (1978) |
| † Integrated Neutron Flux: |
| N = Neutrons Per CC, V = cm/sec., |
| T = Seconds |
