Graphite Felt Graphite Rigid Felt Boards Graphite Soft Felt

• Type: Graphite Felt
• Composition: Graphite
• Carbon Content: High-Carbon
• Grade: Industrial Grade
• Forming Way: Compressed
• Crystal Morphology: Graphite
• Model NO.: Graphite Felt
• Bulk Density: 0.1-0.13
• Ash: 300ppm
• Compressive Strength: ≥0.3-0.35
• Material: Pan-Based, Rayon-Based, Pitch-Based
• Transport Package: Wooden Packing
• Specification: customized
• Trademark: SHJ
• Origin: China
• HS Code: 38011000

Product Description

Soft Graphite Felt

Graphite soft felt is classified into three types based on the choice of raw felt: pitch-based graphite soft felt, polyacrylonitrile (PAN)-based graphite soft felt, and rayon-based graphite soft felt. Its main use is as a thermal insulation material for single crystal silicon smelting furnaces. In the chemical industry, it can be used as a filter material for high-purity corrosive chemical reagents.



Applications of Graphite Soft Felt:

Thermal insulation material, equipment for single crystal silicon manufacturing, vacuum heat treatment furnaces, etc.

*The above values and sizes are typical, not guaranteed.
*The parameters in this table are standard products.
*If high-purity products are required, purification treatment can be provided, with a purified ash content of < 20PPM maximum.
*Special needs and high-end series products can be customized through negotiation and communication with our company.


Rigid Graphite Felt

(1) Thermal Insulation Graphite Barrel


With excellent product precision, superior thermal insulation performance, integral molding, lint-free, dust-free, and long service life. The thermal insulation graphite barrel we supply feature a special design that ensures consistent hard felt structure and excellent thermal uniformity. The product thickness can be customized according to different application scenarios. 

Applications of the graphite rigid felt insulation barrel:

it is suitable for pressure sintering furnaces, vacuum sintering furnaces, pressure sintering furnaces under pressure, and atmospheric sintering furnaces. It possesses a certain degree of self-support.


(2) Rigid Felt Boards



With a long service life, rigid graphite felt board is made of high-purity raw materials and formed using a small amount of binder, eliminating the factor of impurity-catalyzed corrosion. Through high-temperature purification processes, impurities are removed, greatly enhancing the lifespan of the carbon fiber thermal insulation hard felt and reducing the tendency to powder.

Surface Treatment: Graphite paper surface treatment improves the anti-airflow erosion performance of the rigid carbon fiber felt, blocking high-temperature airflow.

Applications of rigid felt boards:

The rigid graphite felt, with its excellent high-temperature thermal insulation effect and stability, is widely used in various fields such as high-temperature heat treatment furnaces, sintering furnaces, silicon single crystal furnaces, polysilicon ingot furnaces, and as a thermal insulation component for the hot zone of sapphire growth furnaces.


*The above values and sizes are typical, not guaranteed.
*The parameters in this table are standard products.
*If high-purity products are required, purification treatment can be provided, with a purified ash content of < 20PPM maximum.
*Special needs and high-end series products can be customized through negotiation and communication with our company.