Silicon Metal Powder Specifications:
Silicon Metal Powder | |||||||
Grade | 553 | 441 | 421 | 3303 | 2503 | 2202 | |
Specification | Si≥ | 98.50% | 99% | 99% | 99% | 99% | 99% |
Fe≤ | 0.50% | 0.40% | 0.40% | 0.30% | 0.20% | 0.20% | |
Al≤ | 0.50% | 0.40% | 0.20% | 0.30% | 0.50% | 0.20% | |
Ca≤ | 0.30% | 0.10% | 0.10% | 0.03% | 0.03% | 0.02% | |
Size | 45-325mesh, -200mesh, -325mesh or as per your order | ||||||
Packing | 25kg/bag or 1000kg/bag |
High Purity Silicon Metal Powder | |||||
Grade | 3N-1 | 3N-2 | 4N | 5N | |
Specification Element content | Si≥ | 99.7% | 99.9% | 99.99% | 99.999% |
Fe≤ | 0.05% | <0.02% | 0.003% | 3PPM | |
Al≤ | 0.12% | <0.02% | 0.003% | 2PPM | |
Ca≤ | 0.02% | <0.005% | 0.001% | 0.05PPM | |
Size | 45-325mesh, -200mesh, -325mesh or as per your order | ||||
Packing | 25kg/bag or 1000kg/bag,Drum |
Silicon powder | Specification | Min. Si content | Chemical composition% | ||
Max impurity content | |||||
Fe | Al | Ca | |||
Silicon powder for chemical egineering | Si- (20-120 mesh) | 99.0 | 0.4 | 0.4 | 0.1 |
Si- (30-140 mesh) | 99.0 | 0.4 | 0.4 | 0.1 | |
Si- (40-160 mesh) | 99.0 | 0.4 | 0.4 | 0.1 | |
Si- (40-280 mesh) | 99.0 | 0.4 | 0.4 | 0.1 | |
Si- (40-325 mesh) | 99.0 | 0.4 | 0.4 | 0.1 | |
Silicon powder for refractory material | 150 mesh | 98.5 | 0.5 | 0.5 | 0.3 |
200 mesh | 98.5 | 0.5 | 0.5 | 0.3 | |
325 mesh | 98.5 | 0.5 | 0.5 | 0.3 | |
400 mesh | 98.5 | 0.5 | 0.5 | 0.3 | |
500 mesh | 98.5 | 0.5 | 0.5 | 0.3 | |
Low grade silicon powder | 200 mesh 325 mesh | 97 | Impurity contents≤3.0% | ||
Product: 553#, 521#, 421#, 3303# Particle size: 20-160mesh, 30-270mesh, 45-710um,200mesh and 325mesh,etc. |
Silicon Metal is typically produced in a size of 0-100 mm, but for most applications further size reduction is required. The optimum particle size depends strongly on the final application. That means in many cases, some optimization work is required to find the most cost competitive solution. Silicon metal powder is produced by crushing, milling and classifying silicon material to obtain the required particle size.
Silicon Metal powder can be produced with a top cut for customers that only need to control the amount of coarse particles. It can also be produced with a top and bottom cut for customers that need to control both the amount of coarse and fine particles. The shape of the particles can also, to some extent, be altered by the technology used at the micronizing stage. Contamination free micronizing is also possible for customers that cannot accept any at all contamination from the milling media.
Micronized silicon with top cut can be supplied with a top cut of 6 microns and up. Silicon with bottom and top cut can be supplied with a bottom cut of very few microns and up. The cost will depend largely on production speed and yield.
Chemsize offers a range of metallurgical silicon powders that are carefully selected, crushed, milled to customer specifications and needs. Different purities and sizes are therefore available, to satisfy customer processing requirements and application needs. Products with customized chemistry and sizing can be produced on request.
Our silicon powder products include follows spec products, the latter produced using a proprietary hydrometallurgical process.
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