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Silica fume
Hebei Yayang Spodumene Co., Ltd. produces silica fume, an amorphous silicon dioxide powder with a SiO2 content ranging from 85 to 98 per cent. The material is supplied as an ultrafine powder whose particles measure between 0.1 and 0.3 micrometres in diameter. It originates as a by‑product of silicon and ferrosilicon alloy manufacturing in Shijiazhuang, Hebei, China. The supplier lists the product as a pozzolanic additive for concrete and a component for refractories, ceramics and oil‑well cementing.
Typical silica fume exhibits a bulk density of 0.15 to 0.30 g cm‑3 and a specific surface area exceeding 20 000 m² kg‑1, which enhances its reactivity in cementitious systems. Its spherical particle shape provides excellent packing density, reducing the peak exothermic temperature in epoxy resin curing. Standard industry specifications call for moisture content of 1 per cent or less and a pH of 9 to 10 when dispersed in water. The material is chemically inert to most acids and alkalis, offering strong corrosion resistance in harsh environments.
Buyers typically receive the powder in 25 kg paper bags or bulk 1‑ton flexible containers, depending on order size. The supplier’s harbor tier verification indicates the company is listed in a recognised trade database, though its response rate is currently recorded as zero. Importers should confirm minimum order quantities, packaging details and any required certifications directly with Hebei Yayang before finalising a contract.
| Material | Amorphous Silicon Dioxide (SiO2) 85‑98 % |
| Particle size | 0.1‑0.3 µm |
| Bulk density | typical 0.15‑0.30 g cm‑3 |
| Specific surface area | typical > 20 000 m² kg‑1 |
| Moisture content | typical ≤ 1 % |
| pH (water suspension) | typical 9‑10 |
| Typical packaging | standard 25 kg paper bags or 1‑ton bulk bags |
| By‑product source | silicon and ferrosilicon alloy production |
Hebei Yayang Spodumene Co., Ltd. is located in Lubaishan Village, Lingshou County, Shijiazhuang, Hebei, China. The company is listed with a harbour‑tier verification, indicating inclusion in a recognised trade registry, although its recorded response rate is currently zero. Its public profile provides only the address and tier status, with no additional corporate history disclosed.
The firm supplies silica fume derived from the silicon and ferrosilicon alloy processes it operates. It markets the powder for use as a pozzolanic additive in concrete, as well as for refractories, ceramics and oil‑well cementing, but it does not publish specific certifications, production capacity or client references in the listing.
Silica fume, also called microsilica, is a high-performance pozzolanic material recovered as a byproduct from silicon and ferrosilicon alloy production. With a typical SiO2 content of 85-98% and particle sizes of 0.1-0.3 micrometers, it is widely used as a concrete additive to improve compressive strength, durability, and chemical resistance. It is also applied in refractories, ceramics, and oil well cementing, making it a critical input for infrastructure and heavy industrial projects globally.
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Sourcing Silica fume from Hebei Yayang Spodumene Co., Ltd. - China Import Guide
Before placing an order, verify the silica fume’s SiO2 content, particle size distribution and any available test certificates. Confirm the moisture specification and packaging format to ensure the material meets your project’s technical requirements. It is also advisable to request a sample for laboratory assessment if your application is highly sensitive.
Logistics for this product typically involve shipment from the port of Tianjin or Qingdao, with Incoterms such as FOB or CIF negotiated on a case‑by‑case basis. Lead times are not disclosed in the listing, so ask the supplier for an estimated production and dispatch schedule. Payment terms are usually agreed after confirming product specifications and may include a letter of credit or telegraphic transfer.
For quality assurance, arrange an independent third‑party inspection before loading, focusing on bulk density, moisture content and particle size compliance. Request a full Material Safety Data Sheet and a Certificate of Analysis to accompany the shipment. Keeping these documents on hand will facilitate customs clearance and ensure the silica fume meets your project standards.
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30 suppliersBuy Silica Fume in Bulk — Supplier in China
When sourcing Silica Fume for your business, securing the right balance of quality and cost is essential. Hebei Yayang Spodumene Co., Ltd., a supplier based in China, offers this product with key specifications including Densified, Undensified, or Micro-silica slurry, SiO2: 85-98%, Al2O3: 0.5-2.5%, Fe2O3: 0.1-1.5%, CaO: 0.1-0.5%, Loss on Ignition (LOI): 1-5%, and Particle size 0.1-0.3 microns (平均); Specific surface area 15,000-30,000 m²/kg. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $250 – $450 / MT and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 6903.20, making it a staple in the Silica Sand sector with strong demand from importing countries worldwide.
Silica Fume Specifications, Trade Terms & Pricing
Importing Silica Fume requires careful attention to shipping logistics, customs compliance, and secure payment terms. Hebei Yayang Spodumene 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 6903.20 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 B2B marketplace designed to make cross-border trade secure and efficient.
About Hebei Yayang Spodumene Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Silica Fume for business registration and quality documents before ordering. 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 manufacturers and exporters across 200+ countries. Explore similar products in the Silica Sand category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Silica Fume — Shipping, Logistics & Customs
Importing Silica Fume 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 6903.20 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 Silica Fume
What is the wholesale price of Silica Fume?
The current listed wholesale price for Silica Fume from Hebei Yayang Spodumene Co., Ltd. is $250 – $450 / MT 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 Hebei Yayang Spodumene Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Silica Fume?
The supplier, Hebei Yayang Spodumene Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Silica Fume. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Silica Fume?
For international shipping and customs clearance, Silica Fume is classified under HS Code 6903.20. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Silica Fume from China?
To import Silica Fume from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Hebei Yayang Spodumene Co., Ltd.. Ensure you have the necessary import licenses for Silica Sand products in your destination country.
How can I check Hebei Yayang Spodumene Co., Ltd. before ordering?
Open the Hebei Yayang Spodumene Co., Ltd. company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Silica Fume?
The key specifications for Silica Fume supplied by Hebei Yayang Spodumene Co., Ltd. include Densified, Undensified, or Micro-silica slurry, SiO2: 85-98%, Al2O3: 0.5-2.5%, Fe2O3: 0.1-1.5%, CaO: 0.1-0.5%, Loss on Ignition (LOI): 1-5%, and Particle size 0.1-0.3 microns (平均); Specific surface area 15,000-30,000 m²/kg. 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 Silica Fume?
Hebei Yayang Spodumene Co., Ltd. offers Silica Fume with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Silica Fume the most?
Silica Fume is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Hebei Yayang Spodumene Co., Ltd. through our platform.
What certifications does this Silica Fume supplier hold?
Hebei Yayang Spodumene Co., Ltd. maintains international quality certifications. These ensure that the Silica Fume meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Silica Fume on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Hebei Yayang Spodumene 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 Hebei Yayang Spodumene Co., Ltd..
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