Our graphite sheet material is crafted from high-quality natural or synthetic graphite, undergoing strict purification, precision molding, and high-temperature sintering processes. Its unique layered crystal structure delivers exceptional performance, and we offer tailored options for purity, thickness, and size to address the varied thermal management, conduction, and sealing needs across the electronics and industrial sectors.
Key Features
1. Excellent Thermal Conductivity: Boasting in-plane thermal conductivity ranging from 150 to 2500 W/m·K, this material efficiently dissipates heat and eliminates "hot spots". When compared to traditional copper and aluminum, it offers superior heat dissipation capabilities-reducing thermal resistance by up to 40% against aluminum-to keep equipment running stably.
2. Stable Performance in Wide Temperature Range: Featuring good chemical inertness and durability, it operates reliably in air at temperatures from -40°C to 400°C, and up to 3000°C in an inert gas environment. Its extremely low thermal expansion coefficient prevents cracking or deformation caused by thermal stress, even in harsh extreme temperature conditions, with a service life exceeding 5 years under normal working circumstances.
3. Lightweight and Flexible: With a density of 1.0–1.8 g/cm³-75% lighter than copper-it comes in ultra-thin thicknesses from 0.03mm to 50mm. It can be bent 90° without breaking, and is easy to cut, mold, or laminate with adhesive and film, allowing it to fit tightly against various irregular surfaces for seamless integration into different equipment components.
4. Corrosion Resistance and Environmental Protection: It exhibits strong resistance to most acids, alkalis, and salts-with a weight loss rate of no more than 0.5% after 72 hours of immersion in harsh chemical media. As an inorganic, non-toxic material, it meets ROHS and REACH environmental standards, and its raw materials are recyclable, aligning with green production concepts.
5. Good Electrical Conductivity and Self-Lubrication: It has low volume resistivity (≤0.0001Ω·cm), ensuring excellent electrical conductivity. Additionally, it offers good self-lubricating properties, making it suitable for use as a lubricating component in mechanical transmission to reduce equipment wear. For special requirements, we also provide optional electromagnetic shielding to avoid electromagnetic interference.
Technical Specifications
|
Parameter |
Natural Graphite Sheet |
Synthetic Graphite Sheet |
High-Purity Graphite Sheet |
|
Carbon Content |
99.0%–99.6% |
≥99.8% |
≥99.99% |
|
Density (g/cm³) |
1.0–1.5 |
1.4–1.8 |
≥1.75 |
|
In-Plane Thermal Conductivity (W/m·K) |
150–500 |
1500–2000 |
300–600 |
|
Through-Plane Thermal Conductivity (W/m·K) |
25–50 |
0.5–3.6 |
1.0–5.0 |
|
Volume Resistivity (Ω·cm) |
≤3.0×10⁻³ |
≤1.5×10⁻⁴ |
≤0.0001 |
|
Max Working Temperature (Air) |
400°C |
450°C |
1200°C |
|
Max Working Temperature (Inert Gas) |
2800°C |
3000°C |
3200°C |
|
Thickness Range |
0.03–2.0mm |
0.03–1.5mm |
0.5–50mm |
|
Hardness (Shore A) |
≥80 |
≥85 |
≥35 (HS) |
|
Compliance |
ROHS, REACH |
ROHS, REACH |
ROHS, REACH |
Note: We offer customized specifications based on specific project requirements, including parameters such as size, thermal conductivity, and corrosion resistance, to better match our customers' actual application scenarios.
Applications
Thanks to its comprehensive performance, our graphite sheet material finds wide application across multiple fields in practice:
1.Consumer Electronics: It is primarily used for heat dissipation of core heating components-such as CPUs, batteries, and chips-in devices like smartphones, laptops, tablets, and smart wearables. It effectively prevents equipment overheating and performance degradation without compromising the overall lightweight design of the devices.
2.New Energy Field: In new energy vehicles, it is applied to the heat dissipation and conduction of power battery packs, automotive semiconductors, and other components. This ensures uniform heat dissipation of the battery pack, avoiding potential safety hazards caused by local overheating. It is also used in photovoltaic power stations and energy storage equipment to enhance energy efficiency and operational stability.
3.Industrial Manufacturing: In the metallurgical industry, it serves as furnace linings and electrodes for high-temperature furnaces. In the chemical industry, it is used as reaction kettle linings and corrosion-resistant seals. In the machinery industry, it functions as mechanical seals and self-lubricating parts, effectively extending equipment service life.
4.Aerospace and Communications: It is used for thermal management of electronic components in satellites and spacecraft, adapting to the extreme temperature environment in space. In the communications field, it is applied to 5G base stations and routers to ensure stable chip heat dissipation and maintain smooth communication signals.
Hot Tags: graphite sheet material, China graphite sheet material manufacturers, graphite sheet, High purity Graphite Sheet, Oxidation resistant Graphite Sheet, Pure Expanded Flexible Graphite Sheet, Thermally Conductive Graphite Sheet
