Carbon felt and graphite felt are designed for use as high-temperature insulation in vacuum furnaces and inert gas furnaces. Our PAN-based carbon and graphite felt is light in weight and has low thermal conductivity. It can be used in oxidizing temperatures up to 400 °C and in vacuum or protective atmospheres up to 3200 °C.
The carbon and graphite felts are processed from a polyacrylonitrile precursor and fired to graphitizing temperatures. Primarily used as high-temperature insulation in inert or vacuum atmospheres offering high stability through rapid thermal cycling.
- High stability with low shrinkage
- Low density and thermal mass
- Greater efficiency in heating and cooling
- Low thermal conductivity
- Uniformity throughout the material
- Available in different lengths, widths, and thickness
- Can be halogen purified to reduce impurity levels into the ppm range
|Technical Data ||Unit ||Carbon Felt ||Graphite Felt |
|Process Temperature ||℃ ||950-1400 ||2200 |
|Carbon Content ||% ||≥96 ||≥99.9 |
|Heat Conductivity ||W/m·k ||0.07-0.14 ||0.12-0.17 |
|Density ||g/cm3 ||0.13-0.18 ||0.10-0.14 |
|Tensile Strength ||Mpa ||0.15-0.25 ||0.14-0.25 |