Silicon Metal Powder 325 Mesh

High-purity Silicon Metal Powder 325 Mesh (≈45 μm), produced by precision grinding of premium silicon metal lumps. Available in grades Si 97%–99.8% (553 / 441 / 421 / 3303 / 2202). Strict particle size control (D50/D90 PSD report available), low Fe/Al/Ca impurities, ISO 9001 certified, monthly capacity 2000+ MT. Ideal for refractories, powder metallurgy, steel deoxidation, and chemical synthesis.

 

Chemical Composition

 

Notes:

Particle Size:​ 325 Mesh (≤45 μm), with ≥85% passing rate.

Quality Control:​ Every batch is accompanied by a Mill Test Certificate (MTC) detailing actual analytical results via ICP-OES.

Customization:​ We support custom specifications for both chemical composition and particle size distribution (PSD).

Standards:​ Production complies with relevant ASTM and ISO standards.

 

Standard:​ 325 mesh (≤45 μm), with ≥85% passing rate through 325-mesh sieve

PSD Control:​ D10/D50/D90 laser diffraction analysis for every batch

Typical PSD:​ D50 ≈ 35–40 μm, D90 < 60 μm

Fines Control:​ Powder content > 325 mesh (sub-45 μm) minimized to prevent dust pollution and ensure uniform dispersion

Customization:​ Also available in 200 mesh, 400 mesh, 600 mesh, or custom micron sizes (e.g., 20–45 μm) for specific applications

1.Stable Purity, Batch After Batch​ - Strict ICP analysis ensures Si content fluctuation < ±0.3%, eliminating formula re-calibration headaches.

2.Superior Reactivity​ - 45 μm fineness delivers 3× faster reaction rate vs. coarse powder, reducing additive dosage in steel deoxidation by 15–20%.

3.Excellent Dispersion​ - Uniform PSD means no sedimentation in refractory castables, no clogging in automated dosing systems.

Packaging:

1.25 kg laminated PP bags with inner plastic liner.

2.Custom packaging & private labeling supported

3.Certification:​ ISO 9001:2015, COA (Certificate of Analysis) with every lot

4.Third-Party Inspection:​ SGS, BV, CCIC welcomed at buyer's request

5.Documents:​ MTC, COA, PS certificate, origin certificate, packing list

6.Lead Time:​ 7–10 working days after deposit confirmation

7.Storage:​ Dry, ventilated warehouse; protect from moisture, heat, and direct sunlight

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