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Graphite Rigid Felts, up to 2.000 °C
Rigid graphite felt comes from a natural mineral derivative of carbon (C). It has a hexagonally shaped structure and is soft and flexible. It is usually of black or grayish color. Carbon and graphite products are appreciated for their chemical and physical properties: chemically inert, thermal resistance, low thermal and electrical conductivity, low thermal expansion coefficient, low friction coefficient, low coefficient of absorption of X-rays and electrons. Moreover, these products can be used in different fields: they can be found in pencils and alkaline batteries but also in the metallurgy, automobile and high technologies industries.
Rigid graphite felt is available with a thickness of 40 mm (max. size 1,524 x 1,219 mm). This product is made of graphite fibres and a carbon binder. It is suitable for temperatures up to 2,200 °C. Specific widths and shapes can be cut. Other felts' options are also available.
Benefits of Graphite Rigid Felts
- Low thermal conductivity
- Low specific heat: allowing for rapid heating and cooling of furnaces.
- High thermal stability: in oxidizing atmospheres up to 350 °C, in protective or vacuum atmospheres up to approximately 3,000 °C for graphite and 1,000 °C for carbon.
- Ease of processing: can be cut with scissors or blades. Adapted to small flexural radii.
- Good surface properties: unaffected by all molten metals.
- High purity: low sulphury and ash content
- No electrostatic charging
- High resistivity: coupling in an inductive field only occurs above 12 kHz.
Applications of Graphite Rigid Felts
- Thermal insulation
- Support element
- Component of high-temperature furnaces
Technical Data of Graphite Rigid Felts
|
Property |
Unit |
Graphite Rigid Felt |
|
|
Item N° |
MFA |
||
|
Density |
g/cm3 |
0.17 |
|
|
Thickness |
mm |
40 |
|
|
Width |
mm |
1,219 |
|
|
Length |
mm |
1,524 |
|
|
Compressive Strength |
MPa |
0.7 |
|
|
Flexural Strength |
MPa |
0.8 |
|
|
Ash Content |
% |
0.1 |
|
|
Max. Operating Temperature |
°C |
2,000 |
|
|
Thermal Conductivity |
at 200 °C |
W.m-1.K-1 |
0.2 |
|
at 600 °C |
0.35 |
||
|
at 1,000 °C |
0.95 |
||
Rigid graphite felt is also available with an enduction on one or both faces (carbon or graphite reinforcement).
Physical variables included in this documentation are provided by way of indication only and do not, under any circumstances, constitute a contractual undertaking. Please contact our technical service if you require any additional information.