CFC Composites For Renewable

CFC Composites For Renewable

CFC Composites For Renewable

CFC Composites for Renewable

Technical Data – Key Points – CFC Sizes

CFC Composites for Renewable energy sectors and electronic production are ideal for manufacturers who are looking for a more advanced alternative to traditional materials typically used. Graphites are commonly used in these areas. But they bulky, heavy and fragile. These can contribute to risk of downtime due to failure and reduce output due to the sizes required. Switching to Neftec CFC Composites can aid the increase in productivity, reduce downtime, while reducing their overall costs. Neftec has a long standing history in supporting the renewables sector. Especially in Photovoltaic industry for over a decade with their CFC Composites .

Our CFC rods, Heat-Shields and Heater-plates offer exceptional durability, life-span and quality for Polysilicon production. CFC Composites For RenewableNeftec also supplies parts for many other applications, this includes Crucible reinforcement parts, heat-shielding, molten silicon sealing components, along with our standard parts that include bolts and nuts, all these aid the production of Silicon Ingot production.

The manufacture of Solar cells have several stages of production that require highly technical materials to cope with the rigours of these manufacturing environments. C/C has always been a material that has been able to cope with these environments. Our CFC Composites for solar is not only extremely light, but it offers high strength, superior longevity, cost reductions.

Today you will find Neftec CFC Composites For Renewable energies are widely used in the production of silicon monocrystals and we offer a list of applications suited for silicon monocrystal production. These include; susceptors for CVD equipment and CFC Boats and carrier plates, these trays are light and well suited for the PECVD process during Solar Cell production.

Contact us today to find out how Neftec can help you and your Photovoltaic production needs.

Key Points

  • High Inter-laminar strength
  • Exceptional machining characteristics, ideal for complex shapes and components
  • Retain strengths throughout continuous heat cycles
  • Excellent durability
  • Extremely long service intervals, decreasing downtime of furnaces.
  • Lower costs
  • High Density
  • Short manufacturing and lead times

Neftec CFC Composite Properties

Material Grade




Bulk Density g/cm3 1.65+ 1.7+
Flexural Strength MPa 200 220
Inter-laminar Shear Strength (ILSS) MPa 18-19 19+
Compressive Strength MPa 120 200+
Young’s Modulus GPa 45 90
Tensile Strength MPa 120 150
( RT-1300C ) 10-6/C 1.1 1.1
Coefficient of Thermal Expansion 10-6/C 10.4 10.4
Thermal Conductivity W/m・K 35 35
12 12
Specific Heat 20C J/Kg・K 720 TBA
Electrical Resistivity μΩcm 2000 1800
Sharpy Impact Strength KJ/m2 20 20
Shore Hardness   75  75
Temperature Rating    2000°c  2000°c

Material Grade




Bulk Density g/cm3 1.65 1.65
Flexural Strength MPa 180 148
Inter-laminar Shear Strength (ILSS) MPa 16 11
Compressive Strength MPa 110 TBA
Young’s Modulus GPa 45 63.5
Tensile Strength MPa 120 200
( RT-1300C ) 10-6/C 1.1 1.1
Coefficient of Thermal Expansion 10-6/C 10.4 9
Thermal Conductivity W/m・K 100 33
20 10
Specific Heat 20C J/Kg・K 720  TBA
Electrical Resistivity μΩcm 1400 2800
Charpy Impact Strength KJ/m2  20  TBA
Temperature Rating  Celcius  2400°c  2000°c

Material Grade




Bulk Density g/cm3 1.5  
Flexural Strength MPa 100  
Inter-laminar Shear Strength (ILSS) MPa 10  
Compressive Strength MPa 100  
Young’s Modulus GPa 55  
Tensile Strength MPa 100  
( RT-1300C ) 10-6/C 1.1  
Coefficient of Thermal Expansion 10-6/C 19  
Thermal Conductivity W/m・K 32  
Specific Heat 20C J/Kg・K TBA  
Electrical Resistivity μΩcm NA  
Charpy Impact Strength KJ/m2  TBA  
Temperature Rating  Celcius  2000°c
Please note, data is taken from several batches to provide an average value and as such values are not guaranteed.

Standard sizes available 

Carbon/Carbon Composite Size and Grade

Neftec Material Grade

Notes and uses
1000 X 1000 or 2000 x 1000 –  0.6/0.8T to 5T WL60, IC50 Long-fibre and Hybrid short-fibre, furnace insulation
1000 X 1000 x 1.2T to 30T PC70/PC70H Machined, structural items – All furnace applications
1120 X 1120 x 1.2T to 30T PC70/PC70H Machined, structural items – All furnace applications
1250 x 1250 x 1.5T to 20T PC70/PC70H Machined, structural items – All furnace applications
1000 X 2000 x 0.6T to 30T PC70 Shelfs, linings, Fixtures, base trays, PECVD  carriers
1000 x 500 x 130T PC70 Machined and structural items
2500 x 420 x 130T * PC70 CFC Rollers
1500 x 420 x 60T * PC70 Machined items, heating elements

Carbon/Carbon Composite Threaded Rod

Neftec Material Grade

M4 X 1000mm to M50 x 1000mm PC70
Φ4 X 1000mm to Φ50 x 1000mm PC70

*The above technical data are typical measured values and are not guaranteed

**Further sizes are available. To find out more on how Neftec Carbon Composites are the ideal solution for your Heat-Treatment needs please contact us for further information.

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