Basic Info.
Model NO.
CZKBSMZ002
Shape
Plate
Usage
High-Temperature Furnaces
Bulk Density (G/Cm³ )
0.1-0.23G/Cm3
Materials
Carbon or Graphite Felt
Size and Shape
Customer Request
Color
Black Grey
Advantages
Corrosion Resistance
Place of Origin
Hebei, China
Product Name
Graphite Felt
Advantaes
High Temperature Resistance/ Acid Resistance/ Alka
Application
High Temperature Furnace
Composition
High Pure
MOQ
1 PCS
Customized Service
Support
Lead Time
to Be Negotiated
Transport Package
Plywood Box
Specification
customized
Trademark
KB
Origin
China
Production Capacity
800000 Pieces/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 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.
Soft Graphite Felt - Flexible Refractory Insulating Material
- High purity, high thermal stability.
- Low thermal conductivity coefficient, no static electricity.
- Easy cutting and machining
Soft graphite felt is a flexible insulating material for high temperature applications in inert or vacuum atmosphere and is entirely made of carbon fibers. When used as an insulation material for high-temperature industrial furnaces, it can be bound and stitched with carbon ropes woven through special process. Due to its controlled internal structure and electrical conductivity, soft felts can also be used for energy storage like redox flow cells. Soft graphite felts are divided into PAN-based soft graphite felts, rayon based soft graphite felts, and soft felts for battery.
The base material for the production of carbon and graphite soft felt is felt made of needled cellulose fibers. They are processed into carbon soft felts by thermal treatment at temperature 800-1000°C. If these felts are treated at higher temperatures >2000°C, they become graphite soft felt.
Typical properties of rigid graphite felt:
- High temperature stability.
- Low thermal conductivity
- good thermal insulation effect.
- thermal shock resistance.
- Erosion resistance
Rigid felt is a rigid insulation material with low thermal conductivity based on carbon fibers. A carbon based bonding material locks the fibers in a rigid structure, that can be offered in any shape (for example, plates, cylinders, barrels, disks).
Rigid felt is produced by mixing and pressing of fiber material and binder, followed by high temperature treatment at temperature up to 2800 °C. In the final production step the rigid felt is machined to the desired dimensions.
Surface coating can be: CFC, graphite foil or carbon cloth.
Rigid felt is produced by mixing and pressing of fiber material and binder, followed by high temperature treatment at temperature up to 2800 °C. In the final production step the rigid felt is machined to the desired dimensions.
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, higher density, but weaker flexibility, better insulation properties.
Technical Data of Graphite Soft Felt: | Material | PAN-CF | Rayon Graphite Felt | |
| Volume density ( g/cm3) | 0.1-0.16 | 0.10-0.12 | |
| Carbon Content (%) | ≥99 | ≥99 | |
| Thermal conductivity(800ºC)W/mk | 0.13-0.31 | 0.09-0.21 | |
| Ash ( %) | ≤0.05 | ≤0.02 | |
| Processing temperature (ºC) | ≥2200 | ≥2200 | |
| Operating Condition | in the air(ºC) | ≤400 | |
| in the vacuum (ºC) | ≥2200 | ||
| in the inert atmosphere (ºC) | ≥3400 | ||
Technical Data of Graphite Rigid Felt:
| Material | PAN-CF Graphite Rigid Felt | PAN-YZ Interger Graphite Rigid Felt | Rayon Graphite Rigid Felt | |
| Volume density ( g/cm3) | 0.16-0.35 can be adjusted | 0.14-0.21 can be adjusted | 0.18-0.23 can be adjusted | |
| Thermal conductivity(800ºC)W/mk | 0.2-0.3 | 0.12-0.25 | 0.12-0.25 | |
| Carbon Content ( %) | ≥99 | ≥99 | ≥99 | |
| Processing temperature (ºC) | ≥2200 | ≥2200 | ≥2200 | |
| Operating Condition | in the air(ºC) | ≤400 | ||
| in the vacuum (ºC) | ≥2200 | |||
| in the inert atmosphere (ºC) | ≥3400 | |||
Technical Data of Graphite Material:
Isostatic Graphite
| Property | KBD-5 | KBD-6 | KBD-7 | KBD-7B | KBD-8 | Unit |
| Apparent Density | 1.85 | 1.90 | 1.82 | 1.82 | 1.90 | g/cm3 |
| Max Grain Size | 13-15 | 8-10 | 8-10 | 13-15 | 8-10 | µm |
| Ash value | ≤500 | ≤500 | ≤500 | ≤500 | ≤500 | ppm |
| Specific Electrical Resistivity | 8-10 | 8-9 | 11-13 | 11-13 | 11-13 | μΩm |
| Flexural Strength | 46 | 55 | 51 | 59 | 60 | Mpa |
| Compressive Strength | 85 | 95 | 115 | 121 | 135 | Mpa |
| Shore Hardness | 48 | 53 | 65 | 70 | 70 | HSD |
| Thermal Expansion (room temperature to 600ºC) | 4.75 | 4.8 | 5.8 | 5.8 | 5.85 | 10-6/ºC |
| Property | KBG-4 | KBG-5 | Unit |
| Apparent Density | ≥1.80 | ≥1.85 | g/cm3 |
| Ash value | ≤500 | ≤500 | ppm |
| Shore Hardness | ≥40 | ≥45 | HSD |
| Specific Electrical Resistivity | ≤12 | ≤12 | μΩm |
| Flexural Strength | 38 | 41 | Mpa |
| Compressive Strength | 81 | 87 | Mpa |
| Max Grain Size | 25 | 25 | μm |
Vibration Graphite
| Property | TSK | GSK | Unit |
| Apparent Density | ≥1.70 | ≥1.72 | g/cm3 |
| 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 | % |
Advanced Production Equipments
Strict Quality Control Ensures High Quality Products
Safe Packing
Question and Answer:
Q:Are you a manufacturer or trading company?
A:We are a manufacture for graphite material and graphite machined products.
Q:How can you gurantee the quality?
A:We have the most advanced equipments in our Lab and professional quality control team.We can gurantee each batch of the product with the stable quality.
Q:Can you offer samples?
A: Yes, we offer samples to test
Q: Delivery time?
A:Around 10 days.
Q: Shipping pot
A: Tianjin or main port in China
Q:Payment terms
A:T/T,LC at sight