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Premium Graphite Solutions for Global Industries

Leading manufacturer of high-performance graphite products including Expandable Graphite, UHP Graphite Electrodes, Synthetic & Natural Graphite, EPS with Graphite, and Sealing Materials — trusted by industries worldwide.

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About CNSunGraf

CNSunGraf is a trusted global supplier of high-quality graphite materials, specializing in natural and synthetic graphite products for industrial applications. With years of expertise, we deliver reliable, consistent, and innovative solutions to meet the evolving needs of metallurgy, electronics, flame retardants, batteries, and automotive sectors.

Our commitment to excellence is reflected in our strict quality control processes, advanced production techniques, and customer-focused service. We pride ourselves on providing environmentally responsible, halogen-free, and heavy-metal-free graphite products that meet international standards.

Quality Assured

ISO & industry-standard compliance

Global Reach

Serving clients in 50+ countries

Graphitized Petroleum Coke

Our Quality Control Process

At CNSunGraf, quality is at the heart of everything we do. From raw material sourcing to final packaging, every product undergoes rigorous testing and inspection to ensure consistency, purity, and performance.

Raw Material Testing

Only high-purity flake graphite and petroleum coke are selected after chemical analysis.

In-Process Monitoring

Real-time quality checks during expansion, graphitization, and compression stages.

Final Inspection

Each batch is tested for expansion rate, sulfur content, particle size, and purity.

Our Premium Products

Explore our comprehensive range of high-performance graphite materials engineered for industrial excellence and reliability.

Flake Graphite +895

Flake Graphite +895

High-carbon flake graphite ideal for carbon brick applications in metallurgy and refractories.

  • • Carbon content: ≥89.5%
  • • Low ash & sulfur content
  • • Excellent thermal conductivity
Expandable Graphite

Expandable Graphite

High expansion rate, halogen-free, and heavy metal-free for flame retardant use.

  • • Expansion: 250-350x volume
  • • Onset temp: 200–300°C
  • • Eco-friendly, non-toxic
UHP Graphite Electrodes

UHP Graphite Electrodes

Ultra-High Power electrodes for electric arc furnaces with low consumption rates.

  • • 100% needle coke base
  • • High density & strength
  • • Low electrical resistivity
Synthetic Graphite

Synthetic Graphite

Ideal for friction materials and high-temperature applications.

  • • High purity & consistency
  • • Excellent wear resistance
  • • Used in brake pads & clutches
Graphite EPS Bead

Graphite EPS Bead

Enhanced insulation beads with expandable graphite for construction materials.

  • • Improved thermal insulation
  • • Flame-retardant properties
  • • Lightweight & durable
Flexible Graphite Sheet

Flexible Graphite Sheet

Resilient, compressible sheets for high-temperature sealing applications.

  • • Temperature resistance: up to 650°C
  • • Chemically inert
  • • Used in gaskets & flanges
Graphitized Petroleum Coke

Graphitized Petroleum Coke (GPC)

Low sulfur, low nitrogen GPC for steelmaking carburizers.

  • • Carbon content: >98%
  • • Low impurities
  • • High conductivity
High Purity Graphite

High Purity Graphite

Halogen-free and heavy metal-free for sensitive electronic and battery applications.

  • • Ash content < 50 ppm
  • • Ideal for lithium-ion anodes
  • • Consistent particle size
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Industrial Applications

Our graphite products are engineered to perform in demanding environments across multiple high-tech and industrial sectors.

Metallurgical Industry

Used as carburizers in steelmaking; graphite and GPC enhance carbon content efficiently.

Electronics Industry

Electrodes, brushes, and conductive coatings for high-performance electrical systems.

Flame Retardant Industry

Expandable graphite forms protective char layers in polymers and coatings.

Battery Industry

Anode materials in lithium-ion batteries using high-purity natural and synthetic graphite.

Automotive Industry

Friction materials, gaskets, and thermal management systems rely on our graphite.

Mechanical Industry

Lubricants, seals, and wear-resistant components benefit from graphite’s properties.

50+
Countries Served
15+
Years Experience
200+
Industrial Clients
99.8%
Customer Satisfaction

Get in Touch

For product inquiries, quotations, or partnership opportunities, reach out to our team directly.

[email protected]
+86-532-85674111
No.328 Dunhua Road, Qingdao 266034 Shandong, China
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