Import Silicon Nitride — Buy in wholesale FOB from Supplier in China

Hebei Ledphor Optoelectronics Technology Co.,Ltd. supplies silicon nitride (Si3N4) technical ceramic powder with a purity of 99.9 % as stated in the product data. The material is supplied as a white powder with a reported d50 particle size, and the molecular formula is Si3N4 with CAS 12033‑89‑5. This high‑performance ceramic is noted for thermal‑shock resistance, high strength and wear resistance, making it suitable for cutting‑tool inserts, bearing components and refractory linings. The powder is sourced from Hebei province in China.

In the ceramics industry silicon nitride powders of this grade are typically sintered at 1700‑1800 °C to achieve densities above 3.2 g cm‑3. Standard specifications include a thermal conductivity of 30‑40 W m‑1 K‑1 and a grain size distribution (d50) between 1 µm and 5 µm for advanced structural applications. Purity levels of 99.5 % or higher are considered typical for aerospace and automotive ceramic parts, and the material complies with ISO 9001 quality management practices when supplied by certified manufacturers. These industry norms provide a benchmark for evaluating the supplied powder.

Potential buyers such as manufacturers of cutting tools, high‑speed bearings and aerospace structural components can source this powder for prototype or volume production. Trade terms, minimum order quantities, packaging size (e.g., 25 kg bags) and incoterms are not disclosed in the listing and should be confirmed directly with the supplier. Lead times and payment conditions are also subject to negotiation and verification prior to contract. Importers are advised to request a material test report and certificate of analysis to validate the stated purity and particle‑size data.

Hebei Ledphor Optoelectronics Technology Co.,Ltd. is located at No. 998 Tengfei Road, Baoding, Hebei 071000, China. The company is listed with a harbor trust tier on the platform, indicating a basic level of verification, and its response rate is recorded as 0 %, with no response time data available. It specialises in the production and export of technical ceramic powders, focusing on high‑purity silicon nitride for demanding industrial applications. The supplier’s catalogue highlights the material’s suitability for aerospace, automotive and metal‑working sectors.

The supplier’s public profile does not disclose production capacity, certified quality management systems or specific client references. Buyers should therefore obtain a current certificate of analysis and, if required, evidence of ISO‑9001 or equivalent compliance directly from the company. Hebei Ledphor’s stated product line includes silicon nitride powder with 99.9 % purity and a white‑powder appearance, but no additional grades or custom formulations are mentioned. Communication with the supplier is needed to clarify any bespoke specifications or packaging options.