Import Expandable Graphite — Buy in wholesale FOB from Supplier in China
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Expandable Graphite
Expandable graphite from Sungraf Material Group Limited is produced from natural flake graphite intercalated with sulfuric acid and other oxidizing agents, available in grades 9550350, 9850300, and 9550250. These grades denote specific expansion volumes and particle distributions, with the 9550350 grade typically expanding to 350ml/g and retaining a median particle size of approximately 100 microns. The material is not chemically altered beyond intercalation and remains free of additives or binders.
The product is composed of natural graphite flakes with intercalation compounds that enable rapid thermal expansion when exposed to heat, forming a low-density, worm-like char. This behavior is standard in fire-retardant applications, where the expansion ratio determines the volume of intumescent barrier formed. Typical industry grades range from 150 to 450ml/g expansion, with purity levels above 95% fixed carbon being common for high-performance uses.
This material is primarily purchased by manufacturers of fireproofing seals, intumescent coatings, and oil spill absorbents in the construction and environmental sectors. Buyers source it in bulk bags of 25kg or 50kg, or in 200kg drums. Packaging is moisture-resistant and sealed to preserve expansion characteristics. Lead times vary by order volume, and shipping is typically FOB Qingdao or Shanghai. Buyers should confirm expansion volume and particle size distribution per batch.
| Material | Natural flake graphite with intercalation compounds |
| Grade options | 9550350, 9850300, 9550250 |
| Expansion volume | 350ml/g for 9550350, 300ml/g for 9850300, 250ml/g for 9550250 |
| Particle size distribution | Typical median size 80-120 microns, with range 20-200 microns |
| Fixed carbon content | Typical minimum 95%, based on standard graphite flake feedstock |
| Moisture content | Typical maximum 1.0%, as standard for storage stability |
| Packaging | 25kg, 50kg bulk bags or 200kg drums; moisture-resistant PE-lined |
| Sulfur content | Typical range 50-500ppm, depending on intercalation process |
| Volatile matter | Typical range 8-12%, consistent with standard intercalated graphite |
| pH | Typical range 3-5, due to residual acid from intercalation |
Sungraf Material Group Limited operates from Shibei District, Qingdao, Shandong Province, China. The supplier is registered as a manufacturer and exporter of carbon-based materials, with a physical address verified through harbor-tier documentation. No claims are made about production capacity, years in operation, or client list in the source data.
The company's profile indicates direct handling of graphite intercalation processes and bulk export packaging. Response rate and average response time are not recorded, suggesting limited digital engagement. Buyers should treat this as a direct producer with no third-party intermediation, and verify material consistency through batch testing before large orders.
Expandable graphite is an intercalated graphitic material supplied in grades such as 9550350, 9850300, and 9550250, each offering specific expansion volumes and particle size distributions suited for fireproofing, sealing, and adsorption applications. Widely used in the manufacture of intumescent coatings, fire door seals, gaskets, and oil spill absorbents, this product serves industries including construction, automotive, and environmental protection. As a trade commodity, expandable graphite is exported in bulk bags or drums, with pricing driven by flake purity, expansion ratio, and particle size specifications.
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Sourcing Expandable Graphite from Sungraf Material Group Limited - China Import Guide
Before ordering, verify the expansion volume and particle size distribution of each batch with a certificate of analysis. Confirm fixed carbon content via ASTM D1762 and moisture content via Karl Fischer titration. Ensure the grade matches your application requirements, as 9550350, 9850300, and 9550250 have distinct thermal behaviors. Do not rely on supplier claims without independent testing.
Shipping is typically FOB Qingdao or Shanghai, with lead times of 15-25 days after deposit. Payment terms are commonly 30% advance, 70% against copy of bill of lading. Packaging is in moisture-resistant PE-lined bags or drums. Confirm Incoterms in writing and request a packing list that details gross/net weights per unit. Request a phytosanitary certificate if required by your country’s customs.
Upon receipt, inspect packaging for moisture damage and test a sample for expansion volume and sulfur content. Use a muffle furnace at 200°C to measure expansion and compare to the supplier's stated value. Retain a sample for 90 days in case of application failure. Request batch-specific test reports for fixed carbon, moisture, and pH. Document all inspection results for compliance records.
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14 listingsTop Verified Suppliers for Expandable Graphite
30 suppliersBuy Expandable Graphite in Bulk — Verified Supplier in China
When sourcing Expandable Graphite for your business, securing the right balance of quality and cost is essential. Sungraf Material Group Limited, a verified supplier based in China, offers this product with key specifications including 9550350, 9850300, 9550250 (expandable graphite grades), 100 - 400 mL/g (varies by grade), and Typically +30 mesh or as per grade specification. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $13002600/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 3801.90, making it a staple in the Graphite sector with strong demand from importing countries worldwide.
Expandable Graphite Specifications, Trade Terms & Pricing
Importing Expandable Graphite requires careful attention to shipping logistics, customs compliance, and secure payment terms. Sungraf Material Group Limited offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 3801.90 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Sungraf Material Group Limited — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Expandable Graphite has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Graphite category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Expandable Graphite — Shipping, Logistics & Customs
Importing Expandable Graphite requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 3801.90 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Expandable Graphite
What is the wholesale price of Expandable Graphite?
The current listed wholesale price for Expandable Graphite from Sungraf Material Group Limited is $13002600/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Sungraf Material Group Limited through EximNext.
What is the Minimum Order Quantity (MOQ) for Expandable Graphite?
The supplier, Sungraf Material Group Limited, has set a Minimum Order Quantity (MOQ) of 1 Bags for Expandable Graphite. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Expandable Graphite?
For international shipping and customs clearance, Expandable Graphite is classified under HS Code 3801.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Expandable Graphite from China?
To import Expandable Graphite from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Sungraf Material Group Limited. Ensure you have the necessary import licenses for Graphite products in your destination country.
Is Sungraf Material Group Limited a verified supplier?
Yes, Sungraf Material Group Limited is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Expandable Graphite?
The key specifications for Expandable Graphite supplied by Sungraf Material Group Limited include 9550350, 9850300, 9550250 (expandable graphite grades), 100 - 400 mL/g (varies by grade), and Typically +30 mesh or as per grade specification. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Expandable Graphite?
Sungraf Material Group Limited offers Expandable Graphite with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Expandable Graphite the most?
Expandable Graphite is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Sungraf Material Group Limited through our platform.
What certifications does this Expandable Graphite supplier hold?
Sungraf Material Group Limited maintains international quality certifications. These ensure that the Expandable Graphite meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Expandable Graphite on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Sungraf Material Group Limited will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Sungraf Material Group Limited.
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