Import Expandable Graphite — Buy in wholesale FOB from Supplier in China
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expandable graphite
Expandable graphite is a chemically treated natural graphite flake that expands up to 400 times its original volume when exposed to high temperatures, forming a low-density, worm-like char. This listing specifies grades 9950250, 9550200, 9980250, and 9580200, each defined by purity levels and expansion volume ranges of 100 to 400 ml/g, with granularity options including 32Item, 50Item, 80Item, 100Item, and -100Item. The material is processed to maintain structural integrity and reactivity, ensuring consistent performance in high-temperature applications.
The base material is natural flake graphite with carbon content typically above 98%, treated with intercalants such as sulfuric acid and oxidizing agents to enable exfoliation. Expansion volume and granularity are critical for end-use performance: finer grades like -100Item suit coatings and polymer composites, while coarser grades like 32Item are preferred for molded gaskets. Moisture content must be kept below 0.5% to prevent premature expansion, and packaging is sealed in multi-layer polyethylene bags or drums to preserve reactivity during transport.
This material is primarily used in intumescent firestop systems, flexible graphite gaskets for high-temperature seals, and as anode additive in lithium-ion batteries. Buyers include manufacturers of construction materials, automotive components, and electronics thermal management systems. Packaging is typically 25 kg bags or 500 kg drums, with standard Incoterms being FOB Qingdao or CIF destination port. MOQ is flexible but typically starts at 500 kg for bulk orders; lead time is 15 to 25 days after payment confirmation.
| Material | Expandable natural graphite flake |
| Carbon content | Typically above 98% |
| Expansion volume | 100 to 400 ml/g (grade-dependent) |
| Granularity | 32Item, 50Item, 80Item, 100Item, -100Item |
| Moisture content | Typically below 0.5% |
| Particle size distribution | Standard for flake graphite: 80% below 150 microns for 100Item grade |
| Ash content | Typically below 1.5% |
| Packaging | 25 kg sealed polyethylene bags or 500 kg drums |
| Bulk density | Typical range: 0.5 to 0.8 g/cm³ before expansion |
| Thermal conductivity | Typical range: 150 to 200 W/m·K (in expanded form) |
Yantai Langyu New Material Technology Co., Ltd. is a supplier based in Yantai, Shandong Province, China, focused on specialty carbon materials including expandable graphite. The company is registered as an organic-tier supplier with harbor-level trust verification, indicating active export operations and documented compliance with customs and shipping protocols. No information is provided about factory size, employee count, revenue, or client list, and no certifications such as ISO or REACH are claimed in the listing.
The supplier's primary activity is the processing and export of natural graphite derivatives, with expandable graphite as a core product. Response rate and average response time are not available in the data, suggesting limited or inactive buyer communication channels. The company does not claim in-house production of raw flake graphite but sources and treats it to meet industrial specifications. No claims are made regarding R&D capability, proprietary formulations, or long-term supply agreements.
Expandable graphite is a chemically treated natural graphite flake that expands dramatically at high temperatures, making it essential for intumescent fire protection systems, flexible graphite gaskets, and thermal management applications. Available in grades with expansion volumes ranging from 100 to 400 ml/g, this material offers excellent thermal and electrical conductivity for industrial uses. Widely traded globally for import and export, it is packaged in sealed bags or drums to prevent moisture absorption and maintain reactivity.
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Sourcing expandable graphite from Yantai Langyu New Material Technology Co., Ltd. - China Import Guide
Before placing an order, verify the expansion volume and granularity of each batch with a certified test report. Confirm that carbon content exceeds 98% and moisture is below 0.5% using ASTM or ISO standards. Request a certificate of analysis for each shipment, including ash content and particle size distribution. Do not rely on supplier claims without independent documentation, as variability in natural graphite feedstock can affect performance significantly.
Confirm Incoterms with the supplier - FOB Qingdao is common, but CIF may be offered. Lead time is typically 15 to 25 days after payment, depending on production scheduling and export documentation. Payment terms are often T/T in advance or L/C at sight. Ensure packaging is labeled with batch ID, date of production, and storage instructions. Request a shipping manifest with container seals and inspection certificates for customs clearance.
Conduct a pre-shipment inspection focusing on moisture content, expansion volume, and packaging integrity. Use a moisture analyzer and a calibrated expansion tester. Check for clumping or odor, which may indicate degradation. Request a copy of the supplier’s internal quality control protocol. For critical applications, consider third-party inspection by SGS or Bureau Veritas to validate compliance with your technical specifications before release of payment.
Active buying requirements from importers looking for Similar products
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18 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. Yantai Langyu New Material Technology Co., Ltd., a verified supplier based in China, offers this product with key specifications including Industrial Grade, High Expansion (100-400 ml/g), Carbon 90-99%, Sulfur <5%, Moisture <1%, and Mesh 32-300, Particle Size 50-500 microns. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $2,0003,500./Kilogram and manage bulk orders with a minimum order quantity (MOQ) of 25 Kilogram. This product is actively traded under HS Code 3801.90, making it a staple in the Extrusion Machines 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. Yantai Langyu New Material Technology Co., Ltd. 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 import export marketplace designed to make cross-border trade secure and efficient.
About Yantai Langyu New Material Technology Co., Ltd. — 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 Extrusion Machines category and connect with top-tier exporters on our comprehensive online B2B 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 Yantai Langyu New Material Technology Co., Ltd. is $2,0003,500./Kilogram 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 Yantai Langyu New Material Technology Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Expandable Graphite?
The supplier, Yantai Langyu New Material Technology Co., Ltd., has set a Minimum Order Quantity (MOQ) of 25 Kilogram 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 Yantai Langyu New Material Technology Co., Ltd.. Ensure you have the necessary import licenses for Extrusion Machines products in your destination country.
Is Yantai Langyu New Material Technology Co., Ltd. a verified supplier?
Yes, Yantai Langyu New Material Technology Co., Ltd. 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 Yantai Langyu New Material Technology Co., Ltd. include Industrial Grade, High Expansion (100-400 ml/g), Carbon 90-99%, Sulfur <5%, Moisture <1%, and Mesh 32-300, Particle Size 50-500 microns. 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?
Yantai Langyu New Material Technology Co., Ltd. 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 Yantai Langyu New Material Technology Co., Ltd. through our platform.
What certifications does this Expandable Graphite supplier hold?
Yantai Langyu New Material Technology Co., Ltd. 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. Yantai Langyu New Material Technology Co., Ltd. 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 Yantai Langyu New Material Technology Co., Ltd..
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