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Rigid Graphite Carbon Disk

Available Configurations

Properties common to all products in this list

Grade: Rigid Graphite Composition: C Form: Disk Material: Carbon CAS Number: 7440-44-0 Commodity: Metals Purity: 99.95% Coating: Uncoated Grain Size: Fine Surface Finish: Standard
Rigid Graphite Carbon Disk offers a combination of exceptional thermal conductivity, chemical inertness, and mechanical stability, making it an indispensable material in high-temperature and corrosive environments. In disk form, graphite provides uniform thermal distribution and resistance to thermal shock, while its crystalline carbon structure ensures strength at extreme temperatures. Industries such as metallurgy, semiconductor processing, and aerospace rely on rigid graphite disks for precision components that endure harsh conditions. Specific applications include substrates for chemical vapor deposition, heating elements in high-temperature furnaces, and contact plates in electrochemical systems. In research, graphite disks are investigated for their role in electrochemistry, catalysis support structures, and studies on carbon-based thermal management materials. Their unique balance of conductivity, resilience, and chemical stability makes rigid graphite disks a cornerstone in both advanced industrial systems and fundamental research applications.
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Material Properties

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°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
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Available Configurations

Properties common to all products in this list

Grade: Rigid Graphite Composition: C Form: Disc Material: Carbon CAS Number: 7440-44-0 Commodity: Metals Purity: 99.95% Coating: Uncoated Grain Size: Fine Surface Finish: Standard

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Tolerances

Disc
Thickness >0.05mm ±10%
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%