High Quality Graphite Rigid Felt Customized Size Graphite Felt

• Application Area: Electron Industry, Heat Treatment, Semicounuctor, Solar
• Feature: Corrosion Resistance, High-Thermal Conductivity, Thermal Shock Resistance
• Type: Graphite Felt
• Density: 0.12 to 0.3 g/cm3
• Ash: No More Than 0.45%
• Carbon Content: No Lower Than 99%
• Model NO.: HTYZ005
• Shape: Cuistomized
• Size: Cuistomized
• Transport Package: Wooden Case
• Specification: Customized
• Trademark: Hang Carbon
• Origin: Hebei, China
• Production Capacity: 500000 Piece/Pieces Per Month

Product Description

Graphite felt, also known as graphite fiber felt, is mainly used as a thermal insulation and refractory material for various industrial furnaces including single crystal furnaces, carbonized furnaces, quartz furnaces, vacuum furnaces, thermal balance reaction furnaces, heat treatment furnaces, sintering furnaces, welding furnaces, and high-pressure furnaces for metallurgy, machinery, and chemical engineering industries. It is also used as a filter material for high-purity corrosive chemical reagents.
 

Graphite felt has a carbon content of over 99%, which is higher than carbon felt. Under non-oxidizing atmosphere conditions, its working temperature can be over 2000 °C. It works with graphite composite boards and graphite special-shaped parts to form the insulation layer of industrial furnaces.

 

Graphite felt is divided into soft graphite felt and rigid graphite felt.In addition, carbon felt before high-temperature graphitization is also an excellent high-temperature thermal insulation material and has good adsorption properties for inorganic gases and the like.

Typical properties of rigid graphite felt:

• High temperature stability.
• Low thermal conductivity coefficient, good thermal insulation effect.
• thermal shock resistance.
• Erosion resistance

Description:

Rigid graphite felt has excellent ablative resistance, thermal shock resistance, airflow erosion resistance, good high temperature insulation effect and high temperature stability, etc. It is widely used in most high-end markets, including solar energy industry (Polysilicon ingot furnace, monocrystalline furnace ),semiconductor industry, high temperature vacuum sintering furnaces, heat treatment furnace, etc.

Rigid graphite felt is a thermal insulation material that is based on soft graphite felt and then formed by using a small amount of binder to composite any shape (for example, barrel, disk, cuboid) after high-temperature graphitization treatment. It can effectively improves the original working environment and operability. Besides, it can also have different surface coating treatments upon request to meet the needs of various applications. Compared with soft felt, its fume forming rate is significantly reduced, thereby extending its service life.

Surface coating can be: CFC, graphite foil or carbon cloth. 
 

Rigid graphite felt is generally divided into pitch-based rigid graphite felt, PAN-based rigid graphite felt and rayon-based rigid graphite felt. Comparing with rayon-based rigid graphite felt, PAN-based rigid graphite felt has bigger strength, better oxidation resistance, bigger density, but weaker flexibility, better insulation properties.
 

 

Technical Data of rigid graphite felt:
 

Product Name	Carbon Content	ASH	Bulk Density	Thermal Conductivity
PAN-based rigid graphite felt	≥99%	≤0.45%	0.25-0.3 g/cm3	0.2-0.3 W/mk
rayon-based rigid graphite felt	≥99%	≤0.01%	0.12-0.2 g/cm3	0.1-0.3 W/mk

The advantages of our company: 

1. We have many years of experiences in graphite industry, we choose the most proper materials for your application.
2. We have been exporting to customers in Europe, Asia, USA, Canada, Australia and etc.
3. We have many professional CNC machines.
4. We have a wide range of superior materials: isostatic graphite, Vibration Graphite, Extruded graphite, die molded graphite.
5. We have our own graphite material production facility, and enough stocking materials, to provide you a good and stable price.
6. We have professional engineering and technical team, prefessional international trading team to offer you professional services.
 

 

   

 
Advanced Equipments: 
 

 

Rigorous quality control procedure:
Initial production inspection
During Production Inspection
Pre-shipment inspection/Final inspection
 

Graphtie Material Property: 

Property (Typical Value)	TSK	GSK	Unit
Apparent Density	≥1.68	≥1.72	g/cm^3
Max Grain Size	≤2	≤0.8	mm
Specific Electrical Resistivity	8-10	≤8.5	μΩm
Flexural Strength	≥12.5	≥15	Mpa
Compressive Strength	≥28	≥35	Mpa
Porosity	≤24	≤20	%
Ash value	≤0.3	≤0.3	%

 

Property (Typical Value)	HTG-4	HTG-5	Unit
Apparent Density	≥1.78	≥1.85	g/cm^3
Max Grain Size	≤43	≤43	µm
Ash value	≤500	≤500	ppm
Specific Electrical Resistivity	≤12	≤10	μΩm
Flexural Strength	≥35	≥40	Mpa
Compressive Strength	≥60	≥70	Mpa
Shore Hardness	≥40	≥45	HSD
Thermal Expansion (room temperature to 600ºC)	≤4.5	≤4.4	10-6/ºC

 

Property (Typical Value)	HTD-5	HTD-6	HTD-7	HTD-8	HTD-9	Unit
Apparent Density	1.85	1.90	1.82	1.90	1.82	g/cm^3
Max Grain Size	13-15	8-10	8-10	8-10		µm
Ash Content	≤500	≤500	≤500	≤500	≤500	ppm
Purified ASH Content	50	50	50	50	50	ppm
Specific Electrical Resistivity	8-10	8-9	11-13	11-13	11-13	μΩm
Flexural Strength	46	55	51	60	59	Mpa
Compressive Strength	85	95	115	135	121	Mpa
Shore Hardness	48	53	65	70	70	HSD
Thermal Expansion (room temperature to 600ºC)	4.75	4.8	5.8	5.85	5.85	10-6/ºC

 
Note: ASH can be purified to 20 to 50 ppm. 



Our Services:

Efficiency: Your einquiry will be replied with 24 hours 

Fast Delivery: Our produciton capability and enough mateiral stocks will make sure fast devevery
Customization: We provided OEM services based on your design and drawings

Design Service: Our professional and experienced enigneers team can disign for you, if you need
Quality and Price: We offer you high quality graphite products with the most competitive price

After-sales Services: Tracking service for feedbacks of our graphite products, and we will be responsilbe for quality problem.  

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