
Silicon metal powder is a high-purity, ultra-fine-particle industrial silicon material, which is refined by crushing, grinding, grading and other processes of high-quality metallurgical-grade silicon (such as Si553, Si441, etc.). The silicon content is ≥98.0%, and the typical particle size range is 50 mesh to 800 mesh (micron or nanometer powder can be customized). The product is silver-gray powder with the characteristics of uniform particle size, large specific surface area, high activity and good fluidity.
Silicon metal powder adopts air flow milling or ball milling process, and the powder particle size is precisely controllable (D50: 1-500μm), the surface is clean and non-oxidized, and the chemical reaction efficiency is significantly improved.
The silicon content of standard it is ≥98.0%, and it supports customization of high-purity silicon powder above 99.0% (Fe, Al, Ca and other impurities ≤0.5%) to meet the needs of different industries.
Silicon metal powder can provide spherical silicon powder (plasma atomization method), irregular particles or nano silicon powder, which is suitable for special scenarios such as 3D printing, battery negative electrode materials, and ceramic reinforcement.
Metallic silicon powder is widely used in new energy, chemical industry, metallurgy and advanced manufacturing fields, and is a key basic raw material for the synthesis of high-performance materials.
Grade |
Size |
Chemical Compositions (%) |
||||
Si |
Fe |
Al |
Ca |
|||
Mesh |
≥(Min) |
≤(Max) |
||||
For Chemical use |
3303 |
10-120 |
99.4 |
0.3 |
0.3 |
0.03 |
411 |
99.3 |
0.4 |
0.1 |
0.1 |
||
421 |
99.1 |
0.4 |
0.2 |
0.1 |
||
441 |
99.0 |
0.4 |
0.4 |
0.1 |
||
553 |
98.5 |
0.5 |
0.5 |
0.3 |
||
For Metallurgy use |
421 |
180-325 |
99.0 |
0.4 |
0.2 |
0.1 |
441 |
98.8 |
0.4 |
0.4 |
0.1 |
||
532 |
98.5 |
0.5 |
0.3 |
0.2 |
||
643 |
98.0 |
0.6 |
0.4 |
0.3 |
||
876 |
97.0 |
0.8 |
0.7 |
0.6 |
The packing can be produced according to customer's requirements.




SGS

CIQ

BV

COA
The company is recognized as a world leader in ferroalloys and offers products and services of exceptional quality.
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9K +Annual Exports9k+ tons
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15 +Our ExpertFerroalloys Experts







High quality
Using high quality material and establishing a strict quality control system, assigning specific persons in charge of each part of production, from raw material purchase to assembly.
Fast Delivery
Most of the products can be delivered within 15 days.
Professional Export
Our team has ten years of export experience in ferro alloy industry, providing customers with satisfactory service is our purpose, to provide customers with optimal solutions is our only goal.
Smart warehousing
Warehouses are set up in ports such as Tianjin Port, Dalian Port and Qingdao Port to shorten delivery time.
We have a group of professional talents and advanced domestic production equipment and craft. We pay great attention to the research and development of new products and the implement of scientific managements,At the same time the quality of product have strict requirements,gained good reputation from both domestic international customers.
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Lucy He
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Email: lucy@cnxhyy.com
Ciel Zhang
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Email: ciel@cnxhyy.com
Julia Liu
Mobile/WhatsApp: +86-13016225058
Email: julia@cnxhyy.com

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