GRAFIL 34-700 Carbon Chopped Fiber

GRAFIL 34-700 Carbon Chopped Fiber is valued for its high tensile strength, excellent stiffness, and thermal stability, making it an essential reinforcement material in composite engineering. These chopped fibers retain the superior mechanical properties of continuous carbon fibers while offering better dispersion and processing flexibility in polymer matrices. They are widely applied in aerospace, automotive, civil engineering, and energy sectors to achieve lightweight yet strong composites. Specific applications include high-performance thermoplastic and thermoset composites, reinforcement for asphalt mixtures to improve durability, and use in 3D-printed structural composites. In research, carbon chopped fibers are central to the development of multifunctional materials with improved wear resistance, thermal management, and structural reliability. Their ability to bridge traditional composite manufacturing with emerging additive processes ensures they continue to play a pivotal role in advancing both scientific exploration and industrial innovation.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Chopped Fibre

Fibre Diameter		±25%
Number Of Strands		±10%
Tex Number		±10%
Fibre length		+5% / -1%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	6
Crystal structure	Hexagonal/Diamond
Electronic structure	He 2s² 2p²
Valences shown	2, 3, 4
Atomic weight( amu )	12.011
Thermal neutron absorption cross-section( Barns )	0.0034
Photo-electric work function( eV )	4.8
Natural isotope distribution( Mass No./% )	12/ 98.89
Natural isotope distribution( Mass No./% )	13/ 1.11
Atomic radius - Goldschmidt( nm )	0.077
Ionisation potential( No./eV )	6/ 490
Ionisation potential( No./eV )	4/ 64.5
Ionisation potential( No./eV )	1/ 11.26
Ionisation potential( No./eV )	3/ 47.9
Ionisation potential( No./eV )	2/ 24.38
Ionisation potential( No./eV )	5/ 392

Mechanical Properties

Element	Value
Hardness - Mohs	0.5-1
Hardness - Mohs	10
Material condition	Diamond
Material condition	Graphite
Bulk modulus( GPa )	33
Bulk modulus( GPa )	542
Tensile modulus( GPa )	4.8

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	1375@0@0°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.7

Physical Properties

Element	Value
Boiling point( C )	5000
Density( gcm⁻³ )	2.25@20°C

Thermal Properties

Element	Value
Melting point( C )	3650
Specific heat( J K⁻¹ kg⁻¹ )	712@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	80-240@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	0.6-4.3@0-100°C