Felt



Carbon and Graphite Felt

What is Carbon & Graphite Felt?

Carbon and Graphite felt is a soft flexible high temperature refractory insulation typically used in vacuum and protected atmosphere environments up to 5432℉ (3000℃). High purity felt heat treated to 4712℉(2600℃) and Halogen Purification are available for custom production orders. Additionally, the material can be used in oxidizing temperatures up to 752℉ (400℃).

What is the difference between Pan & Rayon Felts?

Polyacrylonitrile, also known as PAN, is manufactured with larger diameter course fibers resulting in lower surface area and better oxidation resistance. The flexible material is stiffer and less soft to the touch in comparison to Rayon. Thermal conductivity of Rayon is lower than PAN at temperatures greater than 3272℉ (1800℃).

For heat treat applications, our office highly recommends PAN carbon felt due to the materials handling ease and reduced price. If you are operating at temperatures greater than 3272℉ (1800℃), please use Rayon.

Benefits

  • Easy to cut and install.
  • Low density and thermal mass.
  • High thermal resistance.
  • Low ash and sulphur content.
  • No outgassing.

Applications

  • Furnace insulation & parts.
  • Heat shields & sinks.
  • Backing strips for soldering & welding.
  • Cathode in flow battery applications.
  • Reaction surface for other electro-chemical processes.
  • Glass blowing pads & plumber pads.
  • Wicks in ultralight stoves.
  • Automotive exhaust linings.
  • Thermal insulators.

Useful Charts

Carbon Felt Properties
PropertyMeasured Value
Bulk Density0.15 PAN | 0.15 Rayon
Carbon Content>97
Thermal Conductivity (W/m-k)0.21 PAN | 0.22 Rayon
Specific Resistance (ohm.cm)0.18 - 0.22
Strength for Tensile (Mpa)0.12 - 0.30
Ash Content (%)<1.0
Processing Temperature (C)1200
Environment to Use (C)2400 Neutral | 3000 Vacuum
Max Width (IN)48" PAN | 60" Rayon
Thickness (IN)1/8" - 1"
Production Level10-12 Tons/Month
Alternate width & thicknessContact us
Graphite Felt Properties
PropertyMeasured Value
Bulk Density0.15 PAN | 0.85 Rayon
Carbon Content>99
Thermal Conductivity (W/m-k)0.35 PAN | 0.29 Rayon
Specific Resistance (ohm.cm)0.14 - 0.18
Strength for Tensile (MPA)0.10 - 0.25
Ash Content (%)<0.5
Processing Temperature (C)2000
Environment to Use (C)2400 Neutral | 3000 Vacuum
Max Width (IN)48" PAN | 60" Rayon
Thickness (IN)1/8" - 1" Thick
Production Level10-12 Tons per Month
Alternate width & thicknessContact us
Carbon & Graphite Felt Info & Pricing
FeltHeat Treat TempSizePricing Per Roll
Pan Carbon Felt1200C0.125" x 48" x 80'$800.00
1200C0.25" x 48" x 80'$1500.00
1200C0.50" x 48" x 43'$1600.00
Pan Graphite Felt2000C0.125" x 48" x 80'$1,050.00
2000C0.25" x 48" x 80'$1,900.00
2000C0.50" x 48" x 43'$2,000.00
Rayon Carbon Felt1600C0.125" x 48" x 100'$1,380.00
1600C0.25" x 48" x 100'$1,960.00
1600C0.50" x 48" x 51'$1,940.00
Custom Orders below: 4-8 week delivery.
1600C0.125" x 60" x 100'$1,730.00
1600C0.25" x 60" x 100'$2,270.00
1600C0.50" x 60" x 86'$4,130.00
1600C1" x 42" x 24'$2,824.00
1600C1" x 60" x 42'$7,000.00
Rayon Graphite Felt2200C0.125" x 48" x 100'$1,420.00
2200C0.25" x 48" x 100'$2,020.00
2200C0.50" x 48" x 51'$2,000.00
Custom Orders below: 4-8 week delivery.
2200C0.125" x 60" x 100'$1,760.00
2200C0.25" x 60" x 100'$2,340.00
2200C0.50" x 60" x 86'$4,200.00
2200C1" x 42" x 24'$3,221.00
2200C1" x 60" x 42'$7,150.00
Need something not listed, contact us for a quote.

Ready to order?

  • Inventory fully stocked with standard sizes & same day shipping available.
  • Custom orders & sizes typically have a lead time of 4-8 weeks for delivery.
  • 60″ wide rolls are made to order. Need a quote?
  • Discounts provided for volume orders at 9 rolls or more (9 rolls per pallet). Ready for your volume discount quote?
  • High purity specialty rolls are available heat treated up to 2600C & Halogen purified, minimums apply.
  • Any orders less than a roll are available at a 25% mark up. ($100.00 minimum order required.)