Import Black Corundum — Buy in wholesale FOB from Supplier in China
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Black Corundum
Black corundum from Gongyi City Hong The Refractory Material Co., Ltd. is a fused aluminum oxide abrasive made by melting high-grade bauxite in an electric arc furnace. The material contains approximately 10% Fe2O3, giving it a distinctive black color and a lower Al2O3 content compared to white fused alumina. Its angular particle shape and moderate hardness make it ideal for heavy-duty grinding, sandblasting, and refractory applications where toughness and self-sharpening properties are critical.
The product is available in coarse to fine grain sizes, tailored for applications ranging from shot blasting to precision grinding. Its chemical composition, including the iron oxide phase, ensures high durability and low heat generation during grinding, which reduces the risk of surface damage to workpieces. Standard grades for this category typically include mesh sizes from 12 to 220, with finer grits used in polishing and lapping operations.
This abrasive is widely used in metalworking, foundries, and refractory manufacturing, particularly for stainless steel polishing, resin cutting blades, and non-slip road surfaces. Buyers in industries like automotive, aerospace, and construction rely on its consistent performance and cost-effectiveness. The supplier offers bulk and bagged packaging, with trade terms and lead times to be confirmed directly with Gongyi City Hong The Refractory Material Co., Ltd.
| Material | Fused Aluminum Oxide (Al2O3) with Fe2O3 |
| Al2O3 Content | typical 80-85% |
| Fe2O3 Content | approximately 10% |
| Color | Black |
| Particle Shape | Angular |
| Hardness (Mohs) | typical 8-9 |
| Grain Size Range | 12 to 220 mesh (standard for abrasives) |
| Toughness | High, self-sharpening |
| Thermal Resistance | High temperature resistant (typical >1800°C) |
| Packaging | Bulk or bagged (25 kg, 50 kg, or jumbo bags as standard) |
Gongyi City Hong The Refractory Material Co., Ltd. is based in Zhengzhou, Henan Province, China, and operates from an address in Gongyi City. The company specializes in refractory materials and abrasives, with a focus on industrial minerals like black corundum. Its profile indicates a harbor trust tier, though response metrics are currently unavailable, suggesting a need for direct contact to confirm trade details.
The supplier’s product description emphasizes the material’s suitability for heavy-duty applications, including metal polishing, sandblasting, and refractory linings. While specific certifications or production capacity are not listed, the company’s focus on high-volume commodities like black corundum positions it as a potential partner for bulk buyers in global trade. Details on lead times, MOQs, and quality control processes should be verified directly with the supplier.
Black corundum is a fused aluminum oxide abrasive produced by melting high-grade bauxite in an electric arc furnace, characterized by high toughness and sharp angular particle shape ideal for heavy-duty grinding and sandblasting applications. This industrial mineral is widely used in bonded and coated abrasives, steel processing, and refractory linings, making it a high-volume commodity in global mineral trade. Common grades range from coarse grain sizes for shot blasting to fine mesh for precision grinding, typically traded in metric tons with bulk or bagged packaging depending on end-use requirements.
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Sourcing Black Corundum from Gongyi City Hong The Refractory Material Co., Ltd. - China Import Guide
Before ordering, verify the exact Al2O3 and Fe2O3 content with Gongyi City Hong The Refractory Material Co., Ltd., as these directly impact the abrasive’s hardness and toughness. Request a certificate of analysis or third-party test reports to confirm the material meets your application requirements, especially for critical uses like stainless steel polishing or refractory linings.
Confirm logistics details, including lead times, Incoterms (e.g., FOB or CIF), and payment terms, as these are not specified in the listing. Bulk shipments may require special handling to prevent breakage, so discuss packaging and loading procedures with the supplier. Port of discharge and inland transport arrangements should also be clarified upfront.
Quality checks should include testing for grain size distribution, moisture content, and foreign matter, as these can affect performance. Request samples for trial runs in your specific application. Inspection certificates and compliance with industry standards (e.g., ISO or ASTM for abrasives) should be part of the documentation. Always confirm the supplier’s quality control processes before placing large orders.
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30 suppliersBuy Black Corundum in Bulk — Verified Supplier in China
When sourcing Black Corundum for your business, securing the right balance of quality and cost is essential. Gongyi City Hong The Refractory Material Co., Ltd., a verified supplier based in China, offers this product with key specifications including Black Corundum Fused Abrasive Grade, Al2O3 85-95%, Fe2O3 2-5%, SiO2 1-3%, TiO2 1-3%, and Grain sizes: 8-220 mesh (coarse to fine); Grit: F4 to F1200. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $550/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2818.10, making it a staple in the Chemicals & Allied Products sector with strong demand from importing countries worldwide.
Black Corundum Specifications, Trade Terms & Pricing
Importing Black Corundum requires careful attention to shipping logistics, customs compliance, and secure payment terms. Gongyi City Hong The Refractory Material 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 2818.10 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 online B2B marketplace designed to make cross-border trade secure and efficient.
About Gongyi City Hong The Refractory Material Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Black Corundum 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 Chemicals & Allied Products category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Black Corundum — Shipping, Logistics & Customs
Importing Black Corundum 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 2818.10 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 Black Corundum
What is the wholesale price of Black Corundum?
The current listed wholesale price for Black Corundum from Gongyi City Hong The Refractory Material Co., Ltd. is $550/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 Gongyi City Hong The Refractory Material Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Black Corundum?
The supplier, Gongyi City Hong The Refractory Material Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Black Corundum. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Black Corundum?
For international shipping and customs clearance, Black Corundum is classified under HS Code 2818.10. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Black Corundum from China?
To import Black Corundum from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Gongyi City Hong The Refractory Material Co., Ltd.. Ensure you have the necessary import licenses for Chemicals & Allied Products products in your destination country.
Is Gongyi City Hong The Refractory Material Co., Ltd. a verified supplier?
Yes, Gongyi City Hong The Refractory Material 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 Black Corundum?
The key specifications for Black Corundum supplied by Gongyi City Hong The Refractory Material Co., Ltd. include Black Corundum Fused Abrasive Grade, Al2O3 85-95%, Fe2O3 2-5%, SiO2 1-3%, TiO2 1-3%, and Grain sizes: 8-220 mesh (coarse to fine); Grit: F4 to F1200. 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 Black Corundum?
Gongyi City Hong The Refractory Material Co., Ltd. offers Black Corundum with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Black Corundum the most?
Black Corundum is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Gongyi City Hong The Refractory Material Co., Ltd. through our platform.
What certifications does this Black Corundum supplier hold?
Gongyi City Hong The Refractory Material Co., Ltd. maintains international quality certifications. These ensure that the Black Corundum meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Black Corundum on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Gongyi City Hong The Refractory Material 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 Gongyi City Hong The Refractory Material Co., Ltd..
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