Carbon Sheet

MetalsTek Engineering is a trusted manufacturer and supplier of high-purity Carbon Sheets. We provide consistent material quality, competitive pricing, and short lead times to support a wide range of applications, including semiconductor processing, vacuum systems, thermal management components, precision machining, and high-temperature industrial uses.

Carbon Sheet

Material: Carbon (High-Purity Graphite)
Purity: ≥99.9% (Higher Purity Available)
Form: Sheet / Plate / Customized Machined Shapes
Size: Customized Dimensions
Applications: Semiconductor Processing, Vacuum Systems, Thermal Management, Heat Shields, Precision Machining, High-Temperature Industrial Components

Description

Carbon Sheets are essential bulk materials widely used in high-temperature, vacuum, and precision engineering applications. Manufactured from high-purity graphite or engineered carbon materials, carbon sheets offer excellent thermal stability, chemical inertness, and structural reliability, making them suitable for demanding industrial environments.

With a sublimation temperature above 3,600 °C (for graphite) and a typical density range of 1.8–2.2 g/cc, carbon sheets exhibit outstanding resistance to extreme heat and thermal shock. Their stable crystal structure and anisotropic properties enable precise machining and predictable performance under vacuum, inert gas, or reactive atmospheres.

Carbon sheets are widely used in applications including:

  • Semiconductor processing equipment and fixtures

  • Vacuum systems and ultra-high-vacuum environments

  • Thermal management and heat-spreading components

  • PVD / CVD tooling, liners, and support plates

  • Carbon buffer layers and diffusion barrier components

  • Wear-resistant and chemically stable structural parts

In advanced manufacturing, high-purity carbon sheets are valued for their low impurity content, excellent electrical conductivity, and compatibility with high-temperature and vacuum processes. They are commonly used as susceptors, heater elements, shields, and precision-machined components in semiconductor, optics, and energy-related systems.

Overall, carbon sheets are indispensable materials for next-generation high-temperature and vacuum technologies, enabling reliable structural performance, thermal stability, and dimensional consistency across industries such as semiconductors, electronics, aerospace, energy storage, metallurgy, and precision manufacturing.

Carbon(C) Specifications

Material TypeCarbon (Graphite)
SymbolC
Atomic Weight12.011
Atomic Number6
AppearanceBlack / Dark Gray, Matte or Crystalline (Graphite)
Thermal Conductivity~120–200 W/m·K (Graphite, depending on grade)
Melting / Sublimation PointSublimes at ~3,642 °C
Coefficient of Thermal Expansion~4–8 × 10⁻⁶ /K (orientation dependent)
Theoretical Density2.0–2.26 g/cc (graphite density range)
Z Ratio~1.00
E-BeamExcellent (stable, clean evaporation)

Applications of Carbon Sheet

Carbon (C) and carbon-based sheet materials—including graphite sheets, amorphous carbon sheets, and carbide-based plates such as SiC, B₄C, WC, TiC, and Mo₂C—are widely used across advanced industrial and engineering sectors. Their excellent thermal stability, chemical inertness, mechanical strength, and controllable electrical properties make carbon sheets indispensable in high-temperature, vacuum, and precision applications.

Below is an overview of the major application fields for carbon sheets and related carbide sheet materials.


1. Semiconductor & Electronics Processing

Carbon sheets are core structural and functional materials used in semiconductor and electronics manufacturing, serving as:

  • Support plates and fixtures

  • Heat spreaders and thermal management components

  • Protective and shielding layers

  • Electrically conductive or anti-static plates

  • Buffer and barrier components

These applications are critical in:

  • Semiconductor wafer processing

  • Chip packaging and assembly

  • Advanced microelectronics manufacturing

High-purity graphite sheets are especially valued for their dimensional stability, cleanliness, and compatibility with vacuum and high-temperature environments.


2. Optics, Photonics & High-Energy Systems

Carbon-based sheets play an important role in optical and photonic systems:

  • B₄C and SiC plates are widely used in X-ray optics, synchrotron facilities, and EUV systems due to their hardness, stability, and radiation tolerance.

  • Carbon sheets function as:

    • Structural supports

    • Thermal control components

    • Radiation-resistant substrates

Their stability under high photon flux makes them suitable for scientific instruments and high-energy optical platforms.


3. Wear, Corrosion & Surface Protection Components

Carbon and carbide sheets provide excellent resistance to:

  • Chemical corrosion

  • Mechanical wear and abrasion

  • High-temperature oxidation

They are commonly used in:

  • Mechanical seals

  • Bearings and sliding components

  • Pump and engine-related parts

  • Industrial wear plates

Carbon-based sheet materials ensure long service life in harsh operating environments.


4. Aerospace & Automotive Engineering

Carbon sheets are widely applied in aerospace and automotive systems where high thermal and mechanical performance is required, including:

  • Thermal insulation and heat shields

  • Structural support plates

  • Tribological and low-friction components

  • EMI shielding panels

SiC, B₄C, and WC sheets are particularly valuable in aerospace optics, propulsion systems, and components exposed to extreme thermal and mechanical loads.


5. Semiconductor Devices & Microelectronics Infrastructure

Carbon sheets support semiconductor device fabrication and infrastructure by providing:

  • Stable platforms for high-temperature processes

  • Anti-static and conductive structural components

  • Barrier and interface materials

Carbide-based sheets such as WC, TiC, and SiC are also used in specialized high-temperature or high-strength electronic applications.


6. Energy Storage, Batteries & Energy Conversion

Carbon sheet materials are widely used in energy-related systems to enhance:

  • Electrical conductivity

  • Thermal stability

  • Long-term operational reliability

Typical applications include:

  • Battery casings and structural components

  • Current collectors and conductive plates

  • Protective and buffering layers

Carbide sheets such as Mo₂C and WC are also used in catalytic and energy-conversion systems, including hydrogen-related technologies.


7. Biomedical Engineering & Medical Devices

Carbon-based sheets, especially high-density and polished graphite materials, are used in biomedical applications for their:

  • Biocompatibility

  • Chemical inertness

  • Wear resistance

They are applied in medical tooling, precision fixtures, and specialized biomedical equipment components.


8. Defense, Hard Materials & Extreme Environments

Carbon and carbide sheets such as B₄C, SiC, and WC are among the hardest engineered materials available and are used in:

  • Armor and protective panels

  • Neutron shielding components

  • High-hardness structural plates

  • Aerospace-grade protective systems

Their resistance to heat, wear, and chemical attack makes them suitable for extreme-condition applications.


9. Metallurgy & High-Temperature Processing

Carbon sheets are essential in metallurgical and thermal processing industries, serving as:

  • Furnace liners and heat shields

  • Support plates for high-temperature treatments

  • Structural components in vacuum furnaces

Carbide-reinforced sheets further enhance wear resistance and mechanical strength in advanced metal-processing systems.


10. Chemical Processing & Catalytic Systems

Carbon and carbide sheet materials are widely used in chemical processing environments:

  • As corrosion-resistant structural components

  • As catalyst supports and reaction surfaces

  • In high-temperature and reactive chemical systems

Carbide materials such as WC and Mo₂C are especially suitable for catalytic and reforming applications due to their thermal stability and chemical durability.

Packaging

Our Carbon Sheets are clearly labeled on the exterior packaging to ensure accurate identification and efficient quality control. Each sheet is carefully protected with reinforced cushioning and moisture-resistant packaging to prevent damage during storage and transportation. Strict handling and packaging standards are followed to preserve the purity, structural integrity, and performance of every carbon and graphite sheet supplied to our customers.
Request A Quote
Attach a Drawing
*Company e-mail address is preferred.