Graphite

    • Product Name: Graphite
    • Chemical Name (IUPAC): Graphite
    • CAS No.: 7782-42-5
    • Chemical Formula: C
    • Form/Physical State: Solid
    • Factroy Site: Yushan Island, Gaoting Town, Daishan County, Zhoushan City, Zhejiang Province
    • Price Inquiry: sales3@ascent-chem.com
    • Manufacturer: Zhejiang Petroleum & Chemical Co., Ltd.
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    Specifications

    HS Code

    718629

    Chemical Formula C
    Appearance metallic gray to black, opaque
    Density G Cm3 2.09–2.23
    Melting Point Celsius sublimes at ~3642°C
    Electrical Conductivity high
    Thermal Conductivity W Mk 120–240
    Crystal Structure hexagonal
    Hardness Mohs 1–2
    Lubrication Property excellent dry lubricant
    Solubility In Water insoluble
    Flammability non-flammable
    Toxicity non-toxic
    Typical Uses pencils, lubricants, batteries, refractories, electrodes
    Origin naturally occurring and synthetic
    Magnetism diamagnetic

    As an accredited Graphite factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Graphite is packaged in a 25 kg tightly sealed, double-layered kraft paper bag with a plastic liner for moisture protection.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Graphite involves securely packing up to 20 metric tons in sealed containers to ensure safe, contamination-free transport.
    Shipping Graphite is typically shipped in bulk or drum containers, protected from moisture and contamination. It is stable, non-flammable, and not classified as hazardous for transport. Standard shipping precautions are advised, including keeping containers tightly sealed and labeled. Handle with care to avoid dust generation during loading, unloading, and transportation.
    Storage Graphite should be stored in a dry, well-ventilated area away from incompatible substances such as strong oxidizers. Keep it in tightly closed containers to avoid contamination and moisture absorption. Storage areas should be free from sources of ignition, as graphite dust can be combustible. Proper labeling and adherence to standard laboratory chemical storage protocols are essential for safety.
    Shelf Life Graphite has an indefinite shelf life under proper storage conditions, remaining chemically stable and unreactive over time with minimal degradation.
    Application of Graphite

    Purity 99.9%: Graphite purity 99.9% is used in lithium-ion battery anodes, where it enhances charge-discharge efficiency and cycle stability.

    Particle size 5 microns: Graphite particle size 5 microns is used in lubricants for industrial machinery, where it reduces friction and increases operational lifespan.

    Melting Point 3650°C: Graphite melting point 3650°C is used in refractory brick manufacturing, where it provides superior thermal resistance and structural integrity at high temperatures.

    Bulk Density 1.8 g/cm³: Graphite bulk density 1.8 g/cm³ is used in brake pad formulations, where it improves heat dissipation and minimizes wear.

    Electrical Conductivity 2000 S/cm: Graphite electrical conductivity 2000 S/cm is used in electrode production for electric arc furnaces, where it ensures high current flow and prolonged electrode durability.

    Thermal Conductivity 140 W/mK: Graphite thermal conductivity 140 W/mK is used in heat spreaders for electronics, where it efficiently transfers heat and prevents device overheating.

    Ash Content <0.5%: Graphite ash content less than 0.5% is used in metallurgical crucibles, where it minimizes impurity transfer and maintains metal purity during melting.

    Stability Temperature 3000°C: Graphite stability temperature 3000°C is used in aerospace thermal shields, where it maintains structural performance under extreme heat.

    Surface Area 20 m²/g: Graphite surface area 20 m²/g is used in supercapacitor electrodes, where it increases capacitance and energy storage capability.

    Moisture Content <0.2%: Graphite moisture content less than 0.2% is used in powder metallurgy, where it improves flowability and compact strength during forming processes.

    Free Quote

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    Certification & Compliance
    More Introduction

    Graphite: A Closer Look from the Manufacturer's Perspective

    Understanding the Backbone of Modern Industry

    For years, our facility has poured sweat and focus into the preparation and refinement of high-grade graphite. Through day-to-day production, testing, and adjustment, we've learned what truly matters in this material—consistency, purity, and adaptation to real-world demands spanning from metallurgy to energy storage. The material does more than act as a base for pencils; it forms essential parts of steel-making, acts as an efficient conductor in batteries, and solves lubrication for countless moving parts in heavy machinery.

    Our Grades and Their Real-World Performance

    Our synthetic graphite emerges in a spectrum of grades, most often categorized by carbon content and particle size. More than numbers, these grades capture the balance between purity and structure that each application calls for. Plant operators in electric arc furnaces come to us looking for high-purity graphite electrodes—ash content below 0.5%, density up to 1.85 g/cm3, diameters ranging from Ø 75 mm through Ø 700 mm. It doesn’t end there. Each lot undergoes x-ray and EDM testing for internal cracks, since even a small flaw during a tap can ruin a melt. Customers in lubricants and brake linings prefer flake graphite with expanded surface area—crucial for dispersal and function under thermal stress.

    Anode material manufacturers for lithium-ion batteries have other requirements. They look for ultra-fine, round synthetic particles, less than 20 microns, consistent tap density above 1.2 g/cm3, and a specific surface area in the neighborhood of 2 m2/g. We refine and round the flakes for high capacity, cycling durability, and low loss during battery charge-discharge processes—those properties make the difference between batteries failing prematurely and cells churning reliably through thousands of cycles.

    Purity, Structure, and Process Know-How

    In every batch, carbon content remains our common starting point. Our standard graphites stay above 99.5% fixed carbon for electrical applications, with special high-purity lines reaching 99.99% after chemical purification for nuclear, semiconductor, and high-end battery customers. Silica, iron, sulfur, and other tramp elements stay under strict maximums, because even minor impurities can contaminate molten steel, cause battery swelling, or escalate spark erosion in toolmaking. We learned early that no short-cuts pay off in controlling these elements; only process discipline and batch-level chemical analysis maintain real-world reliability.

    Layer structure tells us even more than purity. True graphite breaks in sheets after roasting and graphitization at over 2,800°C. X-ray diffraction and optical microscopy expose the uniform stacking of graphene layers, showing us where particles will withstand centuries underground or break apart under electrical or thermal load. For isostatic-pressed and fine-grain graphites, controlling the pressing and baking parameters changes the grain size and the resulting mechanical strength—details metallurgists and EDM engineers rely on for precision work.

    Comparing Our Graphite to Other Products

    Many customers ask us to compare synthetic and natural graphite. Synthetic types produced in our factory through petroleum coking offer a consistent particle shape, high purity, and reliable electrical conductivity. Natural graphite, even at the best mines, usually contains more mineral inclusions and variable ash content. This variability can throw off product recipes for batteries, brake pads, or steel electrodes. Synthetic lines allow us to customize for fine particle size or controlled porosity, something geology alone rarely delivers.

    The other comparison comes with amorphous carbon and activated carbon. Neither one stands up to the thermal resistance, electrical conductivity, and lubricating character of true graphite. Amorphous carbon lacks the planar crystal structure, running into more resistance wherever used for electrolysis or arc furnace operation. Activated carbon, with significant porosity, finds its calling in filtration but breaks down quickly when exposed to thermal or electrical extremes common in smelting, machining, or battery discharge. End-users wanting reliable, long-lived performance stick with true crystalline graphite—either flake or synthetic, depending on the blend needed for their application.

    Meeting Industry Demands Head-On

    As industrial needs shift, we make it our business to track changes firsthand. Decarbonization now drives demand for more advanced battery grade graphite. The battery world expects low irreversible capacity loss, lean sodium, sulfur, and chloride, with a round morphology that prevents cell swelling. At the same time, steel plants ask for bulk shipments of large-format electrodes that resist breakage and transfer current efficiently. Brake and friction materials manufacturers focus on controlled particle size and flake shape, directly impacting hot wear stability and thermal dissipation during operation. Our experienced team adjusts grinding, chemical treatment, and graphitization procedures accordingly—some applications gain from denser particles, others from broad plates.

    We run continuous feedback between our quality control lab and the shop floor. All finished goods pass through automated sieving, x-ray purity scans, and acid leaching tests. The goal is not simply to hit a specification sheet, but to spot inconsistencies before they enter the supply chain. Over many years, we've built trust with global steel mills, battery giants, and foundries, not by ticking boxes, but by solving process problems—from troubleshooting erosion in welding rods, to developing grades with improved cycle stability for electric vehicles.

    Health, Safety, and Environmental Care

    Direct contact and airborne graphite dust can irritate skin, eyes, and lungs, so we built our process around containment and regular ventilation upgrades. Workers suit up with ventilation hoods and protective gear wherever dry mixing or grinding takes place. Every lot ships with hazard handling advice and spill instructions, grounded in practical experience from years of safe plant operation. Waste graphite is never dumped; we reclaim and recycle it into lower-grade refractories or lubricants. This reduces what leaves the factory and lightens the impact on local ecosystems. The worst pollution risk arises not from high-purity graphite itself, but from tramp metals left in the waste stream or solvent residues from purification. On-site water treatment keeps effluents clean, while our air monitors track dust and emissions round the clock.

    Reliable Supply and Process Flexibility

    Disruptions in graphite supply ripple quickly through manufacturing. Electric vehicle trends have triggered new peaks in demand for battery-grade synthetic graphite, which stretches raw material and energy supplies thin. In tight markets, buyers see price spikes and longer lead times. Over the years, we've adapted with flexible production schedules, broader network of raw coke suppliers, and on-site inventory increases to keep deliveries on target. Surpluses are shifted to meet urgent needs, and long-term customers receive priority—because lasting relationships matter more than spot market gains.

    Process flexibility also plays a role. We regularly modify kiln temperatures, furnace cycle times, and post-treatment steps to match customer formulas. Tight coordination between engineering, QA, and production means we can spin up a new grade or tweak particle distribution within days, not weeks. It’s the hands-on adjustments, made by people who understand the material in action, that keep our output relevant amid changing industry specs.

    Research, Development, and Future Directions

    Needs continue to evolve as customers chase lighter, longer-lived, and more efficient devices. We commit substantial resources to research and pilot trials. Continuous investments in furnace upgrades and advanced analytics fuel the push for higher-purity, denser graphite. In battery research, for example, small changes in impurity level and particle sphericity can lead to significant improvements in charge speed, stability, and safety. Collaboration with universities and industry labs keeps our material formulas tied to latest breakthroughs—such as coated graphite for next-generation lithium or sodium cells, or blended products for solid-state batteries.

    Beyond batteries, we watch trends in nuclear, aerospace, and water treatment. Finer grades with ever-decreasing ash transform core parts for neutron moderation in reactors or turn into lightweight, heat-resistant components for aircraft. The adaptability of our process supports unique bulk packaging for dust-suppressed road stabilization or ultra-pure batches for specialty optics and semiconductors. We keep both the core and specialty production lines nimble enough to meet these shifting requirements, investing as new opportunities emerge.

    What Sets Our Production Apart

    Experience makes the difference. Over decades, we learned that successful graphite manufacturing leans as much on discipline as on technology. Every shift starts with a rundown of process variables—temperature curves, impurity logs, throughput rates—so operators know what to watch before issues snowball. Training never stops; season after season, newcomers shadow veterans, learning what changing fumes, powder color, or a shift in material temperature during baking can signal about batch consistency or furnace function. These day-to-day lessons shape not only quality, but also innovation, feeding straight back into product development and customer support.

    Unlike trading houses that pull product from varying sources, our traceability runs from raw feedstock to finished product lot. This chain of custody ensures any anomaly or off-standard is traceable to a particular furnace or blending stage, and corrective actions follow up swiftly. Every batch receives a full map of production, inspection, and shipment. Detailed records—carbon, ash, grain size, and more—build trust for engineers demanding repeatability for their end products.

    Our Understanding of End-User Needs

    Each industrial customer faces its own challenges. In our time working with steelmakers, we’ve seen how even a minor swing in graphite electrode quality affects arc stability and tap times, leading to expensive delays and higher energy costs. For battery manufacturers, conversion rates and cell yield depend on graphite’s electrochemical properties. Auto suppliers fighting brake noise or unpredictable wear turn to specific flake size and shape ratios. We stay close by, running trial blends, testing accelerated aging, and keeping technical staff on call to help solve these emerging issues.

    Global markets keep shifting. New battery chemistries emerge, steel production expands in new regions, and automotive regulations push for better friction materials—even as cost pressures never let up. Rather than simply selling material, we position ourselves as process partners, exchanging insights between our plant and the customer’s line, adjusting not just the powder recipe but also the documentation, packaging, or logistics to streamline real production.

    Facing Supply Chain and Quality Risks

    Supply chain risk defines today’s specialty material world. The COVID-19 pandemic and energy cost shocks exposed the need for local stocks and secure transportation. We’ve widened our raw feed relationships, keep extra kiln capacity on hand, and split finished stock between multiple warehouses. At the same time, every bag and box passing through our plant gets full traceability and batch-level documentation, updated in real time and audited monthly for consistency. Not every blend passes muster; batches outside critical specs do not ship. In high-stakes sectors—batteries, nuclear, precision tooling—these checks draw the line between trust and failure.

    Customers sometimes ask why synthetic graphite commands a price premium. The answer traces back to controlled manufacturing, tighter impurity profiles, and round-the-clock monitoring on our shop floor. Our direct oversight and vertical integration mean buyers never worry about surprise contamination or mislabeling common with mixed-source supply. Ultimately, cost and quality are shaped by production discipline, not just geological luck or commodity fluctuations—a reality that reward customers with every reliable shipment.

    Tackling Industry Challenges and Charting a Responsible Future

    As new pressure grows to decarbonize and replace critical minerals, graphite manufacturing faces new tests. Electric vehicles drive exponential demand for premium anode material. The growing complexity of batteries—faster charging, greater storage, longer life—pushes the specification bar higher every season. There’s no shortcut here; each advance demands tighter powder control, lower trace metal contamination, and creative process refinements to keep pace. Our team invests in new purification and spheronization equipment, often configuring production around ultrahigh-purity campaigns for months at a time to ensure uninterrupted output. These investments pay off in fewer QC rejections and more satisfied technical teams at customer sites.

    Environmental pressure also intensifies. Regulations on effluent discharge, dust emissions, and energy use drive us toward smarter water treatment and high-efficiency filtering systems. We track our carbon footprint—both in terms of CO2 from kilns and the sourcing of raw petroleum coke. Local communities benefit from decreased emissions, with monitoring posted publicly and regular dialogue at town meetings. We run educational programs for workers and their families, raising hazard awareness and promoting safe handling of both raw and processed graphite. These community links bring valuable feedback, helping us address concerns early and signal our commitment to long-term safe operation.

    As the industrial landscape continues to evolve, we believe in making graphite better—cleaner, more reliable, and ready for tomorrow’s challenges, not just today’s. Each batch leaving our site stands as a proof of real-world know-how, technical progress, and a dedication rooted in both science and daily hard work. We invite manufacturers, engineers, and researchers alike to draw on our experience and partnership as the world’s appetite for advanced graphite keeps growing.