Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›

Densified and undensified silica fume in 325 mesh is a finely divided amorphous silicon dioxide product, primarily recovered from silicon metal and ferrosilicon alloy production. This listing specifies SiO2 content between 85% and 95%, with average particle size ranging from 0.1 to 0.15 micrometres, making it significantly finer than Portland cement. The material is offered in two physical forms: undensified with bulk density of 300 - 450 kg/CBM and densified at 600 - 700 kg/CBM, each matched to specific packaging and container loading standards.
The product is classified under grades SF-85 through SF-95, indicating its silica purity. Surface area typically falls between 15 and 27 m²/g, enabling strong pozzolanic reactivity. Undensified material is packaged in 500 - 600 kg big bags, suitable for 40HQ containers holding up to 25 MT. Densified grades use 1000 kg big bags, optimised for 20GP containers carrying 18 - 20 MT. These packaging choices reflect standard industry practice for handling ultrafine powders to minimise dust loss and ensure safe transport.
This silica fume is primarily purchased by manufacturers of high-strength concrete, precast elements, and refractory castables used in steelmaking and cement kilns. Buyers in the construction and industrial ceramics sectors require consistent particle size distribution and low chloride content to meet ASTM C1240 and EN 13286 standards. Trade is typically conducted under FOB Qingdao or CIF terms, with lead times of 15 - 25 days after order confirmation. Buyers should verify the exact moisture content and free silica levels before shipment.
| Chemical Composition | SiO2 85% - 95%, with trace Al2O3, Fe2O3, and CaO |
| Particle Size | Average 0.1 - 0.15 μm, 95% passing 325 mesh (44 μm) |
| Surface Area | 15 - 27 m²/g, typical for high-reactivity microsilica |
| Bulk Density - Undensified | 300 - 450 kg/CBM, standard for raw silica fume |
| Bulk Density - Densified | 600 - 700 kg/CBM, typical for compacted grades |
| Packaging - Undensified | 500 - 600 kg big bags, standard for 40HQ container loading |
| Packaging - Densified | 1000 kg big bags, typical for 20GP container loading |
| Container Capacity - 40HQ | Up to 25 MT with undensified grade, standard industry load |
| Container Capacity - 20GP | 18 - 20 MT with densified grade, typical for dense powder |
| Moisture Content | Typically below 1%, critical for handling and reactivity |
Anyang Huatuo Metallurgy Co., Ltd is a producer and exporter of silica fume based in Anyang, Henan Province, China. The company operates within the Dong Zhang Wu Industrial Park and specialises in refining by-products from ferrosilicon smelting into high-purity microsilica. Its listing shows a harbor trust tier, indicating established export experience, but no verified response rate or average reply time is provided, suggesting limited direct buyer engagement on the platform.
The supplier does not claim certifications, production volume, or client names. No information is given about laboratory testing capabilities, internal quality control procedures, or years in operation. The listing confirms only the physical product attributes and shipping logistics, with no embellishment of capacity, history, or market position. Buyers should treat this as a manufacturer-focused supplier with transparent but minimal profile details.
Densified and undensified silica fume in 325 mesh fineness is a high-performance pozzolanic material widely used as a concrete additive to improve strength and durability, and in refractory applications for high-temperature linings. Available in grades SF-85 to SF-95 with bulk density ranging from 300 to 700 kg/CBM, this product is traded in 20GP (18 MT) and 40HQ (25 MT) containers with 500-600kg big bag packaging. Ideal for import-export suppliers serving the construction materials and industrial ceramics sectors.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Before placing an order, verify the exact SiO2 percentage, particle size distribution, and moisture content with a recent certificate of analysis. Confirm that the grade (SF-85 to SF-95) matches your application requirements, especially if used in refractory or high-strength concrete. Request batch-specific test data for chloride and free silica, as these are common rejection points at customs or in quality audits.
Confirm the Incoterms (FOB Qingdao is typical), container type (20GP or 40HQ), and packaging configuration (500kg, 600kg, or 1000kg big bags). Lead time is generally 15 - 25 days after payment, but can vary with production scheduling. Payment is usually by T/T 30% advance and 70% against copy of B/L. Always request a packing list matching the container load and ensure the supplier provides a commercial invoice with HS code 2808.00.
On arrival, conduct a visual inspection for bag integrity and signs of moisture or caking. Sample at least three bags per container and send for lab testing of SiO2, moisture, and chloride. Retain samples for 90 days in case of disputes. Request a mill test report with batch number traceability. For refractory use, perform a flow test and compressive strength trial before full-scale deployment.
Active buying requirements from importers looking for Similar products
Compare alternatives, find similar products and connect with verified suppliers
When sourcing Densified Or Undensified Silica Fume In 325mesh for your business, securing the right balance of quality and cost is essential. Anyang Huatuo Metallurgy Co., Ltd, a verified supplier based in China, offers this product with key specifications including SF-95 (95% SiO2), SF-92 (92% SiO2), SF-90 (90% SiO2), SF-85 (85% SiO2), SiO2 content 85%-95%, with minor Al2O3, Fe2O3, CaO, MgO impurities, and 325 Mesh (approx. 45 micron particle size). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $246/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2505.90, making it a staple in the Silica Sand sector with strong demand from importing countries worldwide.
Importing Densified Or Undensified requires careful attention to shipping logistics, customs compliance, and secure payment terms. Anyang Huatuo Metallurgy 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 2505.90 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.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Densified Or Undensified 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 Densified Or Undensified 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 2505.90 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 Densified Or Undensified Silica Fume In 325mesh from Anyang Huatuo Metallurgy Co., Ltd is $246/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 Anyang Huatuo Metallurgy Co., Ltd through EximNext.
The supplier, Anyang Huatuo Metallurgy Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Densified Or Undensified. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Densified Or Undensified Silica Fume In 325mesh is classified under HS Code 2505.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Densified Or Undensified from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Anyang Huatuo Metallurgy Co., Ltd. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
Yes, Anyang Huatuo Metallurgy 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 Densified Or Undensified Silica Fume In 325mesh supplied by Anyang Huatuo Metallurgy Co., Ltd include SF-95 (95% SiO2), SF-92 (92% SiO2), SF-90 (90% SiO2), SF-85 (85% SiO2), SiO2 content 85%-95%, with minor Al2O3, Fe2O3, CaO, MgO impurities, and 325 Mesh (approx. 45 micron particle size). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Anyang Huatuo Metallurgy Co., Ltd offers Densified Or Undensified with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Densified Or Undensified is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Anyang Huatuo Metallurgy Co., Ltd through our platform.
Anyang Huatuo Metallurgy Co., Ltd maintains international quality certifications. These ensure that the Densified Or Undensified 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. Anyang Huatuo Metallurgy 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 Anyang Huatuo Metallurgy Co., Ltd.
Discover more products in Silica Sand from verified suppliers worldwide.