Import Cristobalite G 325 For Jewellery Casting — Buy in wholesale FOB from Supplier in China
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Cristobalite G 325 For Jewellery Casting is a high-purity silica flour with a particle size of 325 mesh, produced from thermally processed quartz to enhance crystalline stability and whiteness. The material contains 99.5% SiO2, with iron oxide below 0.03% and alumina at 0.20%, ensuring minimal discoloration during high-temperature casting. Its fine, uniform particle distribution supports smooth slurry flow and fine surface replication in investment moulds.
This grade of cristobalite is typically used in precision jewellery casting where low iron content and high thermal expansion consistency are critical. It is not a fused silica but a crystalline form, offering better dimensional stability than amorphous silica flour. The product is processed through specialized grinding and classification to maintain tight particle size control, with typical industry standards requiring less than 1% material over 400 mesh.
Buyers include fine jewellery manufacturers in Europe, North America, and Southeast Asia who require consistent refractory performance. The product is shipped in 25kg polypropylene bags or 1000kg bulk bags, with standard trade terms FOB Lianyungang or CIF. Sample orders under 25kg are available upon request, and bulk shipments fit 20-25 metric tons per 20-foot container.
| Chemical Composition | SiO2 99.5%, Fe2O3 0.03%, Al2O3 0.20%, TiO2 0.02%, K2O 0.05%, CaO 0.01% |
| Particle Size | 325 mesh (44 microns), 98% passing, typical for precision investment casting |
| Particle Size Distribution | Typical range: 95% between 10 and 50 microns, with <2% over 75 microns |
| Form | Crystalline cristobalite, not amorphous or fused silica |
| Color | Pure white, low iron content ensures no yellowing during firing |
| Packaging | 25kg polypropylene bags, or 1000kg bulk bags; custom packing available |
| Bulk Density | Typical bulk density: 1.1 - 1.3 g/cm³ for cristobalite flour |
| Moisture Content | Typical maximum 0.5%, dried during processing to prevent slurry instability |
| Thermal Expansion Coefficient | Typical range: 0.6 - 0.8 x 10^-6 /°C at 800°C, standard for investment casting |
| Export Packaging | Standard 20ft container holds 20-25 metric tons, non-hazardous cargo |
Lianyungang Changtong Silica Powder Co., Ltd. was established in 2009 and specializes in the production of silica powder, fused silica, and cristobalite products. The company operates a processing facility in Haizhou District, Jiangsu Province, and focuses on custom particle size control and purity refinement for industrial clients. It does not disclose annual production volume, employee count, or client lists beyond general export regions.
The supplier has experience in serving international markets including the United States, Brazil, India, Dubai, Thailand, and Turkey. It accepts third-party inspections and offers technical guidance upon request, but provides no certification documents such as ISO or SGS on the listing. Response metrics are not tracked, and the company does not publish a website or contact details beyond the platform profile.
Cristobalite G 325 is a high-purity processed silica flour designed for precision jewellery casting and investment casting applications. With its fine 325 mesh particle size, this cristobalite flour offers superior surface finish and thermal stability during high-temperature moulding processes. Widely sourced from global silica sand exporters, it is favoured in fine jewellery manufacturing for its consistent whiteness, low iron content, and excellent flowability. Trade terms typically include FOB and CIF for bulk shipments. Suitable for jewellers and industrial casting houses seeking reliable silica raw material with consistent quality standards.
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Sourcing Cristobalite G 325 For Jewellery Casting from Lianyungang Changtong Silica Powder Co., Ltd. - China Import Guide
Before placing an order, verify the chemical composition and particle size distribution with a recent certificate of analysis. Confirm that the SiO2 content is at least 99.5% and that iron oxide is below 0.05%. Request XRD data to ensure the material is predominantly cristobalite and not contaminated with quartz or tridymite, which can cause cracking during firing. Do not rely on marketing terms like 'high purity' without data.
Confirm the Incoterms with the supplier - FOB Lianyungang is standard, but CIF may be negotiable for larger volumes. Lead time is typically 15 days after deposit, but this can vary with production load. Packaging is 25kg bags or bulk, with container loading at 20-25 metric tons per 20ft. Request a packing list and commercial invoice with HS code 2808.00 for customs clearance.
Perform a physical inspection of the material upon arrival: check for clumping, discoloration, or foreign matter. Test a small batch for flowability and slurry viscosity. Conduct a burnout test to observe expansion behavior and surface finish on a test casting. Retain a sample for future batch comparison. Always request a material safety data sheet (MSDS) and confirm the product is not classified as hazardous for transport.
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30 suppliersBuy Cristobalite G 325 For Je in Bulk — Verified Supplier in China
When sourcing Cristobalite G 325 For Jewellery Casting 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 G 325 Mesh (Fine Powder), SiO2 > 99.5%, Cristobalite Crystalline Form, and Mesh 325, Particle Size approx. 45 microns. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $300550/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2505.10, making it a staple in the Silica Sand sector with strong demand from importing countries worldwide.
Cristobalite G 325 For Je Specifications, Trade Terms & Pricing
Importing Cristobalite G 325 For Je 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 2505.10 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 B2B marketplace designed to make cross-border trade secure and efficient.
About Lianyungang Changtong Silica Powder Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Cristobalite G 325 For Je 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 Cristobalite G 325 For Je — Shipping, Logistics & Customs
Importing Cristobalite G 325 For Je 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 2505.10 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 Cristobalite G 325 For Je
What is the wholesale price of Cristobalite G 325 For Jewellery Casting?
The current listed wholesale price for Cristobalite G 325 For Jewellery Casting from Lianyungang Changtong Silica Powder Co., Ltd. is $300550/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.
What is the Minimum Order Quantity (MOQ) for Cristobalite G 325 For Je?
The supplier, Lianyungang Changtong Silica Powder Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Cristobalite G 325 For Je. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Cristobalite G 325 For Jewellery Casting?
For international shipping and customs clearance, Cristobalite G 325 For Jewellery Casting is classified under HS Code 2505.10. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Cristobalite G 325 For Je from China?
To import Cristobalite G 325 For Je 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.
Is Lianyungang Changtong Silica Powder Co., Ltd. a verified supplier?
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.
What are the key specifications of Cristobalite G 325 For Jewellery Casting?
The key specifications for Cristobalite G 325 For Jewellery Casting supplied by Lianyungang Changtong Silica Powder Co., Ltd. include G 325 Mesh (Fine Powder), SiO2 > 99.5%, Cristobalite Crystalline Form, and Mesh 325, Particle Size approx. 45 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 Cristobalite G 325 For Je?
Lianyungang Changtong Silica Powder Co., Ltd. offers Cristobalite G 325 For Je with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Cristobalite G 325 For Je the most?
Cristobalite G 325 For Je is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Lianyungang Changtong Silica Powder Co., Ltd. through our platform.
What certifications does this Cristobalite G 325 For Je supplier hold?
Lianyungang Changtong Silica Powder Co., Ltd. maintains international quality certifications. These ensure that the Cristobalite G 325 For Je meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Cristobalite G 325 For Jewellery Casting on EximNext?
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.
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 Lianyungang Changtong Silica Powder Co., Ltd..
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