Import Silica Fume — Buy in wholesale FOB from Supplier in China
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Silica fume
Silica fume, also known as microsilica, is a byproduct of the production of silicon and ferrosilicon alloys. It is an ultrafine powder consisting of spherical particles, typically about 100 times smaller than the average cement particle. This fine powder is rich in silicon dioxide (SiO) and is highly reactive when mixed with cement, making it a valuable additive in construction materials. Features of Silica fume: 1, With good insulation: due to the high purity, low impurity content, stable performance, excellent electrical insulation performance, silica fume makes the cured product has good insulation performance and arc resistance performance.
2. It can reduce the peak exothermic temperature of the curing reaction of epoxy resin, reduce the linear expansion coefficient and shrinkage rate of the cured substance. 3, Corrosion resistance: silicon powder is not easy to react with other substances, and most of the acid, alkali can not react chemically.Its particles evenly covered on the surface of the object, with strong corrosion resistance.
| HS Code | 6903.20 |
| Material | Amorphous Silicon Dioxide (SiO2) 85-98% |
| Grade/Type | Densified, Undensified, or Micro-silica slurry |
| Purity/Composition | SiO2: 85-98%, Al2O3: 0.5-2.5%, Fe2O3: 0.1-1.5%, CaO: 0.1-0.5%, Loss on Ignition (LOI): 1-5% |
| Size/Dimensions | Particle size 0.1-0.3 microns (平均); Specific surface area 15,000-30,000 m²/kg |
| Standard | ASTM C1240, EN 13263-1, GB/T 18736 (Chinese Standard) |
| Application | High-performance concrete, refractory castables, RPC (Reactive Powder Concrete), shotcrete, grout, high-strength cement products |
| Packaging | 25kg bags, 500kg/1000kg big bags (super sacks), bulk tanker for slurry form |
| Origin | Produced as byproduct in silicon and ferrosilicon alloy smelting; major origins include China, Norway, USA, Russia, Brazil |
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 China
Silica fume is offered by Hebei Yayang Spodumene 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 Silica fume, 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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30 suppliersBuy Silica Fume in Bulk — Verified 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 verified 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 $250450./Bags 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. The supplier of this Silica Fume 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 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 $250450./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 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.
Is Hebei Yayang Spodumene Co., Ltd. a verified supplier?
Yes, Hebei Yayang Spodumene 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 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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