Pan Based Rigid Graphite Felt

BZNCarbon produces high-quality Pan based rigid graphite felt, engineered for excellent thermal insulation performance and high-temperature resistance. This product is available with various surface options—such as single or double side CFC (carbon fiber composite) or graphite foil—depending on customer needs. Processing temperatures can be tailored at 1100°C, 1800°C, 2200°C, or 2600°C.

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Product Description

Pan based rigid graphite felt is a high-performance insulating material made from PAN (polyacrylonitrile) carbon fibers. It is compressed and graphitized under high temperatures to form a solid, stable structure. This material provides low thermal conductivity, high purity, and dimensional stability in vacuum or inert atmospheres.

Application Areas

Thermal insulation in high-temperature vacuum furnaces
Crystal growing systems (e.g., sapphire, silicon)
Semiconductor and photovoltaic production lines
Aerospace and nuclear engineering components
Vacuum furnace linings and heat shields
Research facilities requiring ultra-pure thermal isolation

Technical Data (Processing Temperature: 2200°C)

Property	Value
Product Name	Pan Based Rigid Graphite Felt
Grade	BZN-3
Density	0.18 g/cm³
Carbon Content	>99.9%
Ash Content	≤200 ppm
Flexural Strength	0.90 MPa
Compressive Strength (5% deformation)	0.07 MPa
Thermal Conductivity @ 1000°C	0.32 W/m·K
Thermal Conductivity @ 1500°C	0.44 W/m·K
Thermal Conductivity @ 2000°C	0.59 W/m·K
Volatile Content	0%
Electrical Resistivity (Perpendicular)	900 mΩ·cm
Electrical Resistivity (Parallel)	70 mΩ·cm
Operating Environment	Up to 3600°C in vacuum
Heat Treatment Temperature	2200°C

Standard and Custom Sizes

Parameter	Options
Thickness (mm)	10 / 15 / 20 / 30 / 40 / 50 / 80 / 150
Width (mm)	1000 / 1200
Length (mm)	1000 / 1200 / 1500
Standard Plate Size	1.6” × 40” × 60”
Max Plate Size	12” × 48” × 63”
Max Circular Plate	75” × 12”
Max Cylinder Size	75” × 12” × 48” (H)