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Carbon & Graphite Felt

Carbon & Graphite FeltsFiber Materials, Inc. offers carbon and graphite felts in a variety of widths and thicknesses to meet a wide range of applications.  These products are easy to cut and install.  The felts can be sewn in place using FMI's carbon cordage.  Felt material is generally used as thermal insulation in inert and vacuum furnaces.  For special applications, this felt is available with graphite coatings which will reduce the permeability of the felt and improve its resistance to erosion.

FMI's felt can be surface coated with TC-2™, graphite foil bonded or combined with carbon/carbon face plates to provide an insulation system that is utilized with operations such as rapid gas quenching, resulting in longer useful life of the insulation system.

Additionally, FMI's carbon and graphite felt is available in a rigid form that can be manufactured into various shapes, including:

  • Baffles
  • Cylinders
  • Rings
  • Boards

 

Applications
  • Heat treating of metals, ceramics and carbides
  • Crystal growing
  • Turbine blade manufacturing
Primary Grades
  • CH Carbon ............ Carbon Content > 94.0%
  • GH Graphite .......... Carbon Content > 99.7%
Attributes
  • High Temperature Use
  • Low Density and Low Thermal Mass
  • High Thermal Resistance
  • Low Ash and Sulphur Contents
  • No Outgassing
  • Extremely Stable
  • Uniform and Free of Voids
LENGTH up to 100 feet - WIDTH up to 50 inches

 

PropertyUnit Value
CH GradeGH Grade
Carbon Content wt% 94 99.7
Ash Content wt% 1 .03
Thermal Conductivity
at 120°F (50°C)		 Btu * in/h * ft2 * °F
W/m * °K		.37
.053		.48
.069
Tensile Strength
at 70°F (20°C)
Longitudinal Transverse		 lb/in   N/m
lb/in    N/m		 27    .19
39     .27		 8     .06
13    .09
Electrical Resistivity
at 70°F (20°C)
Longitudinal Transverse		 10-3       10-3
ohm*in  ohm*cm		 85-103 220-260
54-70  138-180		 80-100 200-250
75-85   200-209
Splitting Resistance
at 70°F (20°C)
Longitudinal Transverse		 lb/in  N/m
lb/in  N/m		 .2     35
.2     35		 .09     16
.08     14
Linear Shrinkage % 1 0
Bold Text Denotes S. I. Units

 

Nominal Thickness
(inches)		 Nominal Weight
(lb/yd2)
CH GradeGH Grade
1/8 0.50 0.47
1/4 1.07 1.02
1/2 2.01 1.93
1 4.53 4.44
 
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  webmaster@fibermaterialsinc.com		 Last Updated:  03/29/2005