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Fused silica Introduction  Fused silica is made of high purity crystal silica by electrically fusing (fusing temperature 1800-2000â??) to amorphous Silicon dioxide , then it was classed to different grades by manual and then specially engineered to granular and powder form. Because fused silica has a very low thermal conductivity and excellent thermal shock resistance, it is used in lots of fields of investment casting,refractory,ceramic,epoxy modling compound,fusion bounded epoxy. Fused Silica Properties   Investment Casting Grade 2.1 SiO2 >99.90% 2.2 Al2O3
Key Specifications: HS Code: 2506.10 | Material: Amorphous Silicon Dioxide (SiO2), Fused Silica | Grade/Type: Industrial Grade / Optical Grade / Foundry Grade | Purity/Composition: SiO2 content 99.5% - 99.99% | Size/Dimensions: Powder: 50 mesh - 500 mesh; Sand: 0.1mm - 3mm颗粒尺寸可按需定制 | Manufacturing Process: Electric arc fusion at 1800-2000°C | Application: Precision investment casting, optical glass, semiconductor, refractory crucibles, ceramic core materials | Packaging: 25kg bags, 500kg big bags, 1MT super sacks, or bulk packaging | Origin: China / USA / Japan (varies by supplier)
Supply & Ordering: Minimum Order Quantity: 1 Bags
HS Code: 2506.10 — classified under Ores and Minerals.
| HS Code | 2506.10 |
| Material | Amorphous Silicon Dioxide (SiO2), Fused Silica |
| Grade/Type | Industrial Grade / Optical Grade / Foundry Grade |
| Purity/Composition | SiO2 content 99.5% - 99.99% |
| Size/Dimensions | Powder: 50 mesh - 500 mesh; Sand: 0.1mm - 3mm颗粒尺寸可按需定制 |
| Manufacturing Process | Electric arc fusion at 1800-2000°C |
| Application | Precision investment casting, optical glass, semiconductor, refractory crucibles, ceramic core materials |
| Packaging | 25kg bags, 500kg big bags, 1MT super sacks, or bulk packaging |
| Origin | China / USA / Japan (varies by supplier) |
Fused silica sand and powder is a premium amorphous silicon dioxide material produced by electrically fusing high-purity crystal silica at temperatures of 1800-2000°C, resulting in a chemically inert, thermally stable product with near-zero thermal expansion. This material is widely used in precision casting, optical glass, semiconductor manufacturing, refractory linings, and advanced ceramics. As a high-value industrial mineral, fused silica is traded globally in bulk bags or drums, with pricing influenced by purity level, grain size distribution, and the energy-intensive production process. Major producers include China, the United States, Japan, and several European countries, making it a significant commodity in international mineral trade.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Fused Silica Sand/powder is offered by Lianyungang Changtong Silica Powder Co., Ltd., a Supplier based in China, in wholesale quantities for importers, distributors, and trade buyers. Contact the supplier to request pricing, minimum order quantity, and shipping terms for your destination.
When importing Fused Silica Sand/powder, confirm trade terms such as FOB or CIF, packaging, and any certification or documentation you need directly with the supplier before placing a bulk order.
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When sourcing Fused Silica Sand/Powder for your business, securing the right balance of quality and cost is essential. Lianyungang Changtong Silica Powder Co., Ltd., a verified supplier based in China, offers this product with key specifications including Industrial Grade / Optical Grade / Foundry Grade, SiO2 content 99.5% - 99.99%, and Powder: 50 mesh - 500 mesh; Sand: 0.1mm - 3mm颗粒尺寸可按需定制. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $380600/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2506.10, making it a staple in the Silica Sand sector with strong demand from importing countries worldwide.
Importing Fused Silica Sand/Powder requires careful attention to shipping logistics, customs compliance, and secure payment terms. Lianyungang Changtong Silica Powder 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 2506.10 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.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Fused Silica Sand/Powder 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 Silica Sand category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Importing Fused Silica Sand/Powder 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 2506.10 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Fused Silica Sand/Powder from Lianyungang Changtong Silica Powder Co., Ltd. is $380600/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 Lianyungang Changtong Silica Powder Co., Ltd. through EximNext.
The supplier, Lianyungang Changtong Silica Powder Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Fused Silica Sand/Powder. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Fused Silica Sand/Powder is classified under HS Code 2506.10. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Fused Silica Sand/Powder from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Lianyungang Changtong Silica Powder Co., Ltd.. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
Yes, Lianyungang Changtong Silica Powder 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.
The key specifications for Fused Silica Sand/Powder supplied by Lianyungang Changtong Silica Powder Co., Ltd. include Industrial Grade / Optical Grade / Foundry Grade, SiO2 content 99.5% - 99.99%, and Powder: 50 mesh - 500 mesh; Sand: 0.1mm - 3mm颗粒尺寸可按需定制. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Lianyungang Changtong Silica Powder Co., Ltd. offers Fused Silica Sand/Powder with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Fused Silica Sand/Powder is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Lianyungang Changtong Silica Powder Co., Ltd. through our platform.
Lianyungang Changtong Silica Powder Co., Ltd. maintains international quality certifications. These ensure that the Fused Silica Sand/Powder meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Lianyungang Changtong Silica Powder Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
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 Lianyungang Changtong Silica Powder Co., Ltd..
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