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Rigid Graphite Felt

Rigid Graphite Felt

Rigid Graphite Felt is shaped insulating materials made by graphitization after forming graphite felt into the customers’ requested shape, such as plate, cylinder, etc. With our special technologies under the high temperature, the density is less than 0.18g/cc, and the carbon content is more than 99.9%. So they are suitable in all types of heat treating furnaces in an inert or vacuum environment.

Applications
– Vacuum furnace insulation
– Inert gas furnace insulation
– Polysilicon, Monocrystalline silicon furnace insulation

Characteristics
– Low thermal conductivity
– High purity
– High-temperature stability
– Erosion resistance
– Easy machinability

Data Sheet

Bulk Density

g/cm³

<=0.18

Bending Strength

MPa

2.5-3.2

Thermal Conductivity at 20℃

w/mk

0.22

 Thermal Conductivity at 1000℃

 w/mk

 0.32

Tensile strength

MPa

2.8-6.8

Carbon Content

%

>=99.9

Processing Temp.

2200

Thermal conductivity graph (Thermal Conductivity of Rigid Graphite Felt as a function of temperature, inert gas atmosphere)

Shape & Standard dimension

Rigid Graphite Plate
Thickness

Width

Length

40mm

1000mm

1500mm

Cylinder
Complete or assembled cylinder according to customers’ requests.

Type and Code

HT-0101

with one side foil and without other side

HT-0102

with both side foil

HT-0103

with one side cfc and without other side

HT-0104

with both side cfc

HT-0105

with one side cfc and other side foil

HT-0106

without surface

HT-0107

“Sandwich” style

HT-0108 with coating
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