Natural Graphite

Your Professional Natural Graphite Supplier

Founded in 2007, Wanlong Carbon Group is an industrial and trade enterprise specializing in the research and development, production and sales of carbon materials.
Our popular product lines primarily consist of graphite electrodes, carbon additives, artificial graphite, and natural graphite, among others.

Why Choose us

Advanced Production Equipment

Wanlong Carbon Group is equipped with first-class carbon product manufacturing equipment and adopts advanced production technologies.

Our Certifications

Wanlong Carbon Group has successfully obtained ISO9001 quality management system certification and ISO14001 environmental management system certification.

Production Capacity

The annual production capacity of graphite electrodes at Wanlong Carbon Group has reached 100,000 tons.

Parameter

Article	Specification	Particle Size(%)		Fixed Carbon	Moisture
		Screen Oversize	Screen Undersize	(%)	(%)
High Carbon	32Mesh	≥80		94-99	≤0.5
Graphite	50Mesh
	80Mesh
	100Mesh
	150Mesh
	-100Mesh		≥80
	-200Mesh
	-300mesh
	-1000Mesh
	-5000Mesh
Intermediate Carbon	32Mesh	≥80		80-93	≤0.5
Graphite	50Mesh
	80Mesh
	100Mesh
	-200Mesh
	-1000Mesh -5000Mesh		≥80

Benefits of Natural Graphite

High Temperature Resistance & Thermal Shock Resistance
The artificial graphite melting point is 3850±50 °C, and the boiling point is 425 °C. It has a small thermal expansion coefficient, in the case of sudden temperature change, the volume of graphite changes little, therefore it has good thermal shock resistance. The strength of graphite increases as the temperature rises, and at 2000 °C, the strength is doubled.

Electrical & Thermal Conductivity
As each plane of carbon atoms has residual atoms, together with residual atoms on the adjacent planes, functions as electron clouds and exists between the mesh planes, making graphite have good thermal and electrical conductivity. The thermal conductivity of graphite decreases as temperature rises, and at extremely high temperatures, graphite becomes a thermal insulator.

Chemical Stability
Graphite has good chemical stability at room temperature and is resistant to corrosion from acids, alkalis, and organic solvents.

Lubricity
The van der Waals force between graphite layers is weak, making it lubricious. The lubricity of graphite depends on the size of the graphite flakes, the larger the flakes, the lower the friction coefficient, and the higher the lubricity.

Plasticity
Graphite has good toughness and can be rolled into very thin sheets.

Coating Performance
Graphite can be coated on the surface of solid materials to form a thin film, which adheres firmly and provides protection.

Applications of Natural Graphite

Lithium-Ion Batteries

Natural graphite plays a crucial role in lithium-ion batteries, which are pivotal in modern electronics and electric vehicles:
Anode Material: In lithium-ion batteries, graphite is used as the anode material due to its high electrical conductivity and stability. It allows lithium ions to intercalate between the graphene layers during charging and discharging, which enhances battery performance.
Performance Benefits: Graphite significantly improves the efficiency, lifespan, and overall performance of lithium-ion batteries, making it essential for devices ranging from smartphones to electric cars.

Electrode Materials

Graphite is also used in the production of electrodes for various high-temperature and electrochemical processes:
Electric Arc Furnaces: Graphite electrodes are employed in steelmaking and other high-temperature applications due to their ability to withstand extreme heat and resist corrosion.
Electrolytic Cells: In the production of metals such as aluminum, graphite electrodes enhance the efficiency of electrolytic processes, contributing to better metal production.

Lubricants

Graphite’s lubricating properties are utilized across various mechanical and industrial applications:
High-Temperature Lubrication: Graphite lubricants perform well under extreme temperatures where conventional lubricants may fail. This helps reduce friction and wear, improving the longevity of machinery.
Industrial Uses: It is widely used in automotive components, aerospace parts, and other critical machinery where reliable lubrication is essential for optimal performance.

Specialized Lubrication

Aerospace and Defense: In the aerospace and defense sectors, graphite lubricants offer exceptional performance under high-stress conditions, enhancing the reliability of advanced systems and components.

Refractory Materials

Graphite’s role as a refractory material is vital for high-temperature industrial processes:
Furnace Linings and Crucibles: Graphite is used for furnace linings and crucibles due to its resistance to thermal shock and high temperatures. It protects underlying structures and ensures efficient metal casting and smelting.
High-Temperature Applications: Graphite’s ability to withstand extreme temperatures makes it suitable for use in applications such as rocket engines and high-temperature kilns.

Composite Materials

Incorporating graphite into composite materials provides several advantages:
Strength-to-Weight Ratio: Graphite composites offer a strong yet lightweight material option, ideal for applications in aerospace and automotive industries where weight reduction is critical.
Enhanced Performance: These composites improve mechanical properties, such as tensile strength and impact resistance, contributing to the durability and performance of various components.

Shipping

We offer various shipping methods, including sea freight, air freight, and express delivery, depending on the order size and destination.

Shipping costs will be calculated based on the destination and weight of the package.

Customers will receive a tracking number once the package has been shipped, so they can track the status of their delivery.

We strive to ship all orders within 2 business days of receiving the payment.

In case of any delays or issues with shipping, our customer service team will promptly communicate with the customer to resolve the problem.

With our careful packaging and efficient shipping methods, you can trust that your products will arrive in perfect condition and on time.

FAQ

Q: What are the three types of graphite?

A: The three forms are amorphous graphite, flake graphite and crystalline vein graphite, and they each have unique properties that make them well-suited for certain applications.

Q: What happens to graphite when it gets hot?

A: Graphite is also unique due to its thermal expansion properties (CTE). Typically, when a material or substance is heated, it expands. However, graphite has a remarkably low coefficient of thermal expansion; which means that it can be heated and be exposed to extremely high temperatures without expanding all that much.

Q: Is graphite magnetic?

A: No, graphite is not magnetic. In fact, it is diamagnetic, meaning it is weakly repelled by magnetic fields. This is due to the paired electrons and specific structure of carbon atoms in graphite. While pure graphite is non-magnetic, it can exhibit magnetism under certain conditions, such as when it has defects or is treated with proton irradiation.

Q: What happens if you melt graphite?

A: Graphite does not melt under normal conditions; instead, it sublimes, directly transitioning from a solid to a gaseous state at high temperatures. This occurs at around 3600°C. While graphite can become plastically deformable in an inert gas at 2500°C, it sublimates even without oxygen above 3750°C.

As one of the leading natural graphite manufacturers and suppliers in China, we warmly welcome you to buy good quality natural graphite from our factory. All customized products are with high quality and competitive price.

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