Sincerity . Smile . Smart . Speed . Study .Share ......


Graphite Felts for Thermal Insulation


Rigid Graphite Felt
Rigid Graphite Cylinders
PAN & Rayon baseed carbon fiber carbonized. faced foil or CFC

Rayon Graphite Felt
Pan Graphite Felt
polyacrylonitrile based carbon fiber .


Carbon/Carbon composites

CFC Board 2D/3D
Profiles Bolts, Nuts
Assembly & Parts
Tube/Rod/Cylinder/ Heater/Crucible


Graphite & Carbon of Furnace Hot Zone Assembly


Vacuum Furnace Hot Zone Assembly
Poly Silicon Ingot Furnace Hot Zone
Mono Silicon furnace & Hydrogenated Silicon Furnace Hot Zone
PECVD Furnace


Carbon Foam
Reticulated Vitreous Carbon Foam


The matrix of cells and ligaments is completely repeatable, regular, and uniform throughout the entirety of the material. Baltek carbon RVC is a rigid, highly porous and permeable structure and has a controlled density of carbon per unit volume.

Rigid Graphite Felt Thermal Insulation


BALRGF Board is PAN & Rayon baseed carbon fiber carbonized. faced foil or CFC


Order information:e.g.

①BALRGF-②FC ③1,500 x 1,200 x 40 mm


① Rigid felt composite board
② Surface covering, if desired:
RG = Board Only
RF = One side is covered with Graphite foil
FF = Both sides are covered with Graphite foil
RC = One side is covered with CFC
CC = Both sides are covered with CFC
FC = One sides is covered with CFC, the other is covered with foil
SR = Sandwich" style
CR = Board coating

BALRGF Standard Cylinder

BALRGF Sandwich Cylinder

③Board or Cylinder dimensions

Cylinder BALRGF is based upon high purity Rayon and PAN fibres carbonized mixed with proprietary resins and vacuum formed into insulation boards, blocks and cylinders and other components.The material is carbonized and graphitized. It is suitable for temperatures up to 2,200°C mainly in high-temperature furnace applications.


STANDARD DIMENSION Or Customized on Request



Thickness : 30mm;40mm;50mm (+/- 2mm)

Width :1,219mm (48')

Length :1,524 mm (60")


Standard & Sandwich Cylinder

2,000 mm Ø
2,500 mm (height)
300 mm (thickness

Vacuum Heat treatment
Vacuum Brazing
Hard metal sintering
Carbon Fibre production
Silicon wafer manufacture



Bulk density g/cm³ 0.18 Max.
Carbon Content % 99.9 Min.
Thermal Conductivity At 20℃ w/mk 0.22
Thermal Conductivity At 1000℃ w/mk 0.32
Processing Temp ℃ entidegree 2200℃
Bending Strength Mpa 2.5-3.2
Tensile strength Mpa 2.8-6.8


Thermal conductivity graph

Thermal Conductivity of Balflex RGF as a function of temperature ( Inter gas atmosphere)


- Characteristic properties

- Low thermal conductivity
- Low heat capacity

- High thermal stability

- Low adsorption of gases and

- vapors

- Erosion resistance

- Shape retention


Documents Downloads >> More Infomation >>