Reliable Ferrosilicon 65-75% Silver Gray FeSi

Ferrosilicon particles are an iron alloy composed of iron and silicon. Ultra-high-purity FeSi (99.9% Si, Fe < 0.1%) serves as a cost-effective precursor for polysilicon used in solar cells and semiconductors. Our hydrometallurgical refining process removes trace boron (<1 ppm) and phosphorus (<2 ppm), critical for achieving >22% solar cell efficiency.

Available in 1-5mm powder form, our FeSi ensures uniform doping in Czochralski silicon crystal growth. Vacuum-sealed 25kg drums prevent oxidation during transit, with moisture content <0.01%. In order to obtain steel with qualified chemical composition and ensure the quality of steel, deoxidation must be carried out in the final stage of steelmaking. The chemical affinity between silicon and oxygen is very large, so ferrosilicon is a strong deoxidizer for steelmaking, playing a role in precipitation and diffusion. deoxidation.

With 50+ shipments to Taiwan/Korean semiconductor hubs, we master niche logistics:

Hazardous material certification (IMDG Code Class 4.1)

Nitrogen-flushed containers for oxygen-sensitive grades

Blockchain-enabled shipment tracking

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