Import 3-5mm White Fused Corundum — Buy in wholesale FOB from Supplier in China

Haixu Abrasives Co., Ltd supplies 3-5mm white fused corundum, a synthetic abrasive manufactured from high-purity aluminium oxide with Al2O3 content exceeding 99 percent by the supplier's declaration. The angular, hard grains are produced by fusing calcined alumina in an electric arc furnace and crushing to the stated coarse fraction. This grade is positioned for industrial grinding wheel manufacture, bonded abrasive production, pressure blasting and high-temperature refractory lining applications where low iron and low silica contamination are critical. The 3-5mm size sits at the coarse end of fused alumina sizing, suitable for rapid stock removal and heavy-duty surface preparation rather than fine finishing.

White fused alumina of this purity typically exhibits a microhardness of 2000-2200 HV and a Knoop hardness near 2100, making it harder than brown fused alumina and more friable, which promotes fresh cutting edges as grains fracture in service. The supplier describes the material as suitable for both wet and dry blasting and notes use in refractories and specialised products, though specific refractory specifications such as bulk density, thermal expansion coefficient or pyrometric cone equivalent are not provided. Standard chemical limits for premium white fused alumina in this size range typically require Fe2O3 below 0.15 percent, Na2O below 0.35 percent and SiO2 below 0.20 percent, but buyers should request a current certificate of analysis to confirm Haixu's batch compliance against these industry benchmarks.

Primary buyers include abrasive product manufacturers, foundry cleaning operations, automotive component finishers and refractory producers serving steel and non-ferrous industries. The material is offered in bulk packaging for containerised export, with FOB and CIF terms referenced though specific ports and freight structures are not detailed. Importers should confirm packaging format (typically 25 kg paper bags, 1 tonne bulk bags or loose bulk), moisture content on shipment, and whether the lot is screened to control fines and oversize content within the 3-5mm nominal range.

Haixu Abrasives Co., Ltd maintains its registered office at Room 1409, Building 1, Erqi Lvdi Ce, Zhengzhou, Henan Province, China, postal code 45000. The company holds a harbor trust tier on the platform with a response rate of 0.00 percent and zero recorded average response hours, so direct contact is necessary to establish current product availability and quotation turnaround. Zhengzhou sits within Henan's industrial cluster, a region with established bauxite processing and fused alumina production infrastructure, which may support raw material sourcing and downstream abrasive manufacturing.

The supplier profile does not state year of foundation, number of employees, production capacity, furnace count, quality system certifications, named domestic or international clients, or revenue. Buyers should therefore request a company profile, ISO 9001 or similar certification status, and reference customers before committing to volume orders. The listing presents Haixu as a wholesale-oriented supplier with flexible MOQ and export experience, though specific minimum quantities are not published and must be negotiated directly.