Rigid carbon and graphite board
Note: For the carbon and/or graphite felt, it is very important that is 100% Rayon Based, and hi-
fired to a minimum of 1500 C for Carbon, and at or above 2100 C for Graphite.
Your trace element data for these products is needed for us to analyze.
Dimensions needed: 1/4″ thick x 45″ width or 1/2″ x 45″ or 1″ x 45″ +/- width.
Carbon and Graphite Soft Felt Specifications:
(Can you match these?)
Property Units Determined at Degrees C Carbon Felt Graphite Felt
Density Lb/cu ft 20 5.5 5.0
Shrinkage, Linear % To 3000 1 Nil
Water Absorption Weight% 20 1 Nil
in 90% relative humidity
Carbon Assay, Min % 99 99.9
Ash % .25 .02
Specific Heat BTU/lb/deg F 20 .017 .017
Sublimation Temp Deg C 3600 3600
Thermal Conductivity BTU in/hr/sq 1000 1.75
Ft/deg F 1400 2.98