Dingmans Ferry, PA 518.701.6722 sales@graphiteinsulation.com

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$3,113.00$3,558.00

Rayon Graphite Felt is a premium material designed and used for high-temperature insulation in vacuum and inert gas furnaces, among other applications. Rayon has higher carbon and lower ash content in comparison to our Pan Felt. Material is heat-treated to a temperature of 4532℉ | 2500℃.

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Description

Rayon Graphite Felt

Pre-fired / Heat-treated Temp: 4532℉ | 2500℃

Grade: Graphite Felt

What is Rayon Graphite?
Rayon graphite felt is a premium refractory insulation designed and manufactured for high-temperature vacuum and inert gas furnaces, among other applications. Our rayon felt is available in carbon and graphite grades that have been pre-fired / heat-treated to promote consistent insulation performance, higher purity, and reduced ash content. Felt grades can be purified to less than 20 ppm if needed. Material is rated for temperatures up to 5432℉ (3000℃). Our rayon graphite grade is pre-fired to 4532℉ (2500℃), whereas our rayon carbon grade is pre-fired to 3452℉ (1900℃).
Rayon Vs Pan Felt
Rayon felt is a premium soft insulation material that is manufactured from 100% rayon-based fiber precursor. In comparison to Pan, Rayon is pre-fired to high temperatures, has a higher carbon content, lower ash content, and lower thermal conductivity.
Benefits
  • Premium material that is soft to the touch
  • Flexible material that is easy to cut and install
  • Minimize energy consumption and cost
  • Maximize furnace performance and longevity
  • High purity and high thermal resistance
  • Low ash and sulphur content
  • 100% rayon-based fiber precursor
  • Carbon Content ≥ 99 %
  • Low density, shrinkage, and thermal mass
  • Low gas evolution and higher gas oxidation resistance
  • 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
Properties
PropertiesUnitRayon CarbonRayon Graphite
Densityg/cc0.090.08
Linear Shrinkage1%1Negligible
Water Absorption%1Negligible
Carbon Content%≥ 99≥ 99.9
Ash Content%≤ 0.25≤ 0.02
Sulphur Content%≤ 0.07≤ 0.035
Friability (Dusting)%≤ 1.5≤ 2.5
Emissivity0.990.99
Sublimation Temp℉ | ℃6512 | 36006512 | 3600
Surface Area (Nitrogen)m2/g0.60.7
Tensile StrengthMPa0.130.10
Thermal Conductivity
2012℉ | 1150℃
 
W/mk
0.110.14
Vapor Pressure
4118℉ | 2270℃
4424℉ | 2440℃
4748℉ | 2620℃
 
microns
 
1
10
100
 
1
10
100
Temperature Rating2℉ | ℃5432 | 30005432 | 3000
Pre-fire temp℉ | ℃3452 | 19004532 | 2500
Stock SizingStandard1/8"x42"x150'
1/4"x48"x100'
1/2"x48"x54'
1"x42"x24'
1/8"x42"x150'
1/4"x48"x100'
1/2"x48"x54'
1"x42"x24'
Alternate SizingStandard | MetricContact usContact us
Notes:1Measured after heating to 5432F | 3000C
2Temp Rating in Vacuum or Inert Atmosphere

Pricing Overview

FeltHeat Treat TempSizePricing Per Roll
Pan Carbon Felt2192℉ | 1200℃1/8" x 48" x 80'$800.00
2192℉ | 1200℃1/4" x 48" x 80'$1500.00
2192℉ | 1200℃1/2" x 48" x 43'$1600.00
Pan Graphite Felt3992℉ | 2200℃1/8" x 48" x 80'$1,050.00
3992℉ | 2200℃1/4" x 48" x 80'$1,900.00
3992℉ | 2200℃1/2" x 48" x 43'$2,200.00
Rayon Carbon Felt3452℉ | 1900℃1/8" x 42" x 150'$2,729.00
3452℉ | 1900℃1/4" x 48" x 100'$3,198.00
3452℉ | 1900℃1/2" x 48" x 54'$3,198.00
3452℉ | 1900℃1" x 42" x 24' $3,119.00
Rayon Graphite Felt4532℉ | 2500℃1/8" x 42" x 150'$3,113.00
4532℉ | 2500℃1/4" x 48" x 100'$3,339.00
4532℉ | 2500℃1/2" x 48" x 54'$3,339.00
4532℉ | 2500℃1" x 42" x 24'$3,558.00
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Rayon Graphite Felt
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