High-Purity Graphite Soft Felt

Semicera Energy Technology Co., Ltd. is a leading manufacturer of advanced semiconductor materials and ceramic components. As one of the few suppliers in China capable of providing both high-purity silicon carbide ceramics—including recrystallized SiC (RSiC)—and CVD SiC coatings, Semicera serves a wide range of semiconductor applications. The company also specializes in advanced ceramic materials such as alumina (Al₂O₃), aluminum nitride (AlN), zirconia (ZrO₂), and silicon nitride (Si₃N₄), delivering high-performance solutions for demanding industrial environments.

Description

Heat-Resistant Graphite Soft Felt is a premium thermal insulation material manufactured from high-purity carbon fibers through a high-temperature graphitization process. Featuring excellent thermal insulation performance, low thermal conductivity, high purity, and outstanding resistance to extreme temperatures, it is widely used in semiconductor, photovoltaic, crystal growth, and vacuum furnace applications.

Its lightweight and flexible structure allows easy installation while maintaining excellent dimensional stability under high-temperature operating conditions. The material effectively minimizes heat loss, improves furnace energy efficiency, and contributes to uniform temperature distribution within thermal processing systems.

Graphite felt  (1)  Soft Felt (4)

Soft Felt (5)

Product details

Product name

Graphite Felt

Chemical Composition

Carbon fiber

Bulk density

0.12-0.14g/cm3

Carbon content

>=99%

Tensile Strength

0.14Mpa

Thermal conductivity(1150℃)

0.08~0.14W/mk

Ash

<=0.005%

Crushing stress

8-10N/cm

Thickness

1-10mm

Processing temperature

2500(℃)

 

Currently available in four specifications, each available in rolls, parts, and pre-rolled felt tubes:
SCSF: High-purity graphite felt, better thermal conductivity, heat treatment temperature of more than 1900℃
SCSF-p: Ultra-high purity SCSF-B graphite felt
SCSF-v: High-purity graphite felt, heat treatment temperature of more than 2650℃, low thermal conductivity
SCSF-v-p: Ultra-high purity SCSF-D graphite felt

Properties

-Outstanding thermal stability
-High mechanical strength
-Good electrical and thermal conductivity
-Excellent resistance to thermal shock and corrosion
-High material purity
-High electrical load capacity
-Uniform temperature profile

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Fields of applications

-Vacuum furnaces
-Inert gas furnaces
-Heat treatment
(hardening, carbonization, brazing, etc.)
-Carbon fiber production
-Hard metal production
-Sintering applications
-Technical ceramic production
-CVD/PVD coating 

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