Graphite Felts 2000°C

Soft Carbon and Graphite Felts

Carbon and graphite felts with thicknesses of 6 mm and 11 mm and a width of 1200 mm are available. Specific widths can be provided and special shapes can be cut to your specifications.

Main properties of Carbon and Graphite Felts

  • Low thermal conductivity
  • Low specific heat
  • High thermal stability
  • Ease of processing
  • Favorable surface properties
  • High purity
  • No electrostatic charging
  • High resistivity

Applications of Carbon and Graphite Felts

  • Thermal insulation for resistance- or induction-heated vacuum furnaces and inert gas furnaces
  • For inductively heated smelting and holding furnaces
  • Filters for hot and/or corrosive gases and liquids
  • Backing strips for soldering and welding - no wetting, no smouldering

Application areas of Carbon and Graphite Felts

  • Aerospace
  • Semiconductors and photovoltaic
  • Metallurgy
  • Production of optical fibre
  • Glass and ceramic processing
  • Insulation of induction furnaces

Technical data

Properties

Units

Carbon Felts

Graphite Felts

Reference N°

KFA 5

KFA 10

GFA 5

GFA 10

Weight/Area

g/m²

520-650

1000-1150

470-600

950-1100

Tensile Strength

MPa

0.1

0.12

0.1

0.08

Resistivity

Ohm.cm

0.4-0.6  ǁ

0.35-0.55  ǁ

0.15-0.25  ǁ

0.15-0.25  ǁ

0.7-0.9 ^

0.6-0.8 ^

0.3-0.4 ^

0.3-0.4 ^

Thermal Conductivity

W/m.K

0.25

0.25

0.43

0.43

Specific Surface Area

m²/g

> 1.5

> 1.5

< 1

< 1

Ash Content

%

< 0.3

< 0.3

< 0.05

< 0.05

Sulphur Content

%

< 0.03

< 0.03

< 0.001

< 0.001

Sizes

m

25 x 1.2

25 x 1.2

25 x 1.2

25 x 1.2

Thickness

mm

5.5 - 6.5

9.5 - 10.5

5 - 6

9 - 10

The KFA 5, KFA 10 and GFA 5 references are available only in full rolls. GFA 10 is in stock; we offer custom-made cuts according to your needs. GFA 10 can be split into two parts with a thickness of 5mm. Contact us.

Rigid Graphite Felt

Rigid graphite felt is available with a thickness of 40 mm (maximum size 1524 x 1219 mm²). This product is a shape-retentive insulating material made of graphite fibres and a carbon binder. It is suitable for temperatures up to 2000°C in a vacuum environment and used in the form of self-supporting boards, cylinders and other components, mainly in high-temperature furnace applications. Specific widths and shapes can be cut to your specifications.

Main properties of Rigid Graphite Felt

  • Density: 0.2 g/cm³
  • Flexural strength: 1 MPa at 20°C
  • Compressive strength: 1 MPa at 20°C
  • Maximum application temperature: 2000°C in vacuum or inert gas
  • Ash content: 1000 ppm
  • Moisture adsorption: <1%
  • Low thermal conductivity: 0.19 W/m.K at 20°C up to 0.85 W/m.K at 2000°C)
  • Easy to machine
  • High resistance to erosion
  • Ideal for insulation of induction furnaces
  • Available in purified grade
  • Possibility of surface coating

This rigid graphite felt is also available with one or both sides covered with graphite foil to prevent the release of fibres and increase the mechanical strength of the product. The MFA - F reference has graphite bonded to one side. The MFA – FF reference has graphite bonded to both sides.

These felt products can also be covered with CFC (carbon reinforced carbon). Final Advanced Materials also offer cutting of custom parts, according to your needs. Contact us.

Carbon Graphite Felts (786.88k)

Technical data sheet: soft carbon graphite felts and rigid graphite felt.


Felts and Blankets HT° (1.13M)

Technical data sheet: our range of high temperature nonwoven felts and blankets.