Irregular Silicon Powder (Si)
Raw material for silicon-based Li-ion battery anode materials. Small quantities, prototypes and custom made-to-order specifications are welcome.
1–3µm to 325 meshParticle Size
99%+ SiPurity Grade
Custom Made-to-OrderGrade & Quantity
WorldwideExport Shipping
Irregular Silicon Powder — Grades & Specifications
Raw material for silicon-based Li-ion battery anode materials. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | Irregular Silicon Powder |
|---|---|
| Chemical formula | Si |
| CAS number | 7440-21-3 |
| Particle size | D50 1–3µm up to 325 mesh (38–45µm and coarser cuts), grade-dependent |
| Purity | 99%+ Si (grade-dependent) |
| Morphology | Irregular, produced by pulverizing (mechanical crushing/milling) |
| Appearance | Dark gray to black metallic powder |
| Typical applications | Battery Anode Precursor, Cermet & Carbide Precursor, Powder Metallurgy, Solar & Semiconductor Feedstock |
Applications by Industry
Battery Anode PrecursorRaw material for silicon-based Li-ion battery anode materials.
Cermet & Carbide PrecursorFeedstock for silicon nitride/carbide and cermet production.
Powder MetallurgyAlloying additive for aluminum-silicon PM and casting alloys.
Solar & Semiconductor FeedstockRaw material input for solar-grade silicon processing.
Particle Size & Mesh Conversion
Reference for converting between US mesh and microns/millimetres. Figures are nominal sieve openings and may vary slightly by standard.
| Mesh (US) | Micron (µm) | mm | Inch | Remarks |
|---|---|---|---|---|
| 3 | 6730 | 6.730 | 0.2650 | |
| 4 | 4760 | 4.760 | 0.1870 | |
| 5 | 4000 | 4.000 | 0.1570 | |
| 6 | 3360 | 3.360 | 0.1320 | |
| 7 | 2830 | 2.830 | 0.1110 | |
| 8 | 2380 | 2.380 | 0.0937 | |
| 10 | 2000 | 2.000 | 0.0787 | |
| 12 | 1680 | 1.680 | 0.0661 | |
| 14 | 1410 | 1.410 | 0.0555 | |
| 16 | 1190 | 1.190 | 0.0469 | |
| 18 | 1000 | 1.000 | 0.0394 | |
| 20 | 841 | 0.841 | 0.0331 | |
| 25 | 707 | 0.707 | 0.0278 | |
| 30 | 595 | 0.595 | 0.0234 | |
| 35 | 500 | 0.500 | 0.0197 | |
| 40 | 420 | 0.420 | 0.0165 | |
| 45 | 354 | 0.354 | 0.0138 | |
| 50 | 297 | 0.297 | 0.0117 | |
| 60 | 250 | 0.250 | 0.0098 | |
| 70 | 210 | 0.210 | 0.0083 | |
| 80 | 177 | 0.177 | 0.0070 | |
| 100 | 149 | 0.149 | 0.0059 | |
| 120 | 125 | 0.125 | 0.0049 | |
| 140 | 105 | 0.105 | 0.0041 | |
| — | 100 | 0.100 | 0.0039 | Sand |
| 170 | 88 | 0.088 | 0.0035 | |
| 200 | 74 | 0.074 | 0.0029 | |
| — | 70 | 0.070 | 0.0027 | |
| 230 | 63 | 0.063 | 0.0024 | Human hair |
| — | 55 | 0.055 | 0.00217 | |
| 270 | 53 | 0.053 | 0.0021 | |
| — | 50 | 0.050 | 0.00197 | |
| 325 | 44 | 0.044 | 0.0017 | |
| — | 40 | 0.040 | 0.00157 | |
| 400 | 37 | 0.037 | 0.0015 | |
| 550 | 25 | 0.025 | 0.00099 | |
| 625 | 20 | 0.020 | 0.00079 | |
| 1200 | 12 | 0.012 | 0.0005 | |
| 1250 | 10 | 0.010 | 0.000394 | |
| — | 7 | 0.007 | 0.000276 | |
| 2500 | 5 | 0.005 | 0.000197 | |
| 4800 | 3 | 0.003 | 0.000118 | |
| 5000 | 2.5 | 0.0025 | 0.000099 | Bacteria (approx.) |
| 12000 | 1 | 0.001 | 0.0000394 |
Information Required for Quotation
- Grade / purity (e.g. ≥99.95%)
- Particle size / target (µm, or mesh)
- Quantity
- Application environment
- Required delivery country
Lead time depends on grade, particle size, quantity and processing requirements. Export availability can be reviewed based on destination country and material type. A Certificate of Analysis can be provided on request.
Request a Quote or Custom Order
Tell us your grade, particle size and quantity. We typically reply within one business day.
Frequently Asked Questions
What purity / grade options are available for Irregular Silicon Powder?
Irregular Silicon Powder is offered in the grades listed on this page (99%+ Si (grade-dependent)). Other grades can be reviewed on request depending on your application and quantity.
What particle sizes can you supply for Irregular Silicon Powder?
The typical size range supplied is D50 1–3µm up to 325 mesh (38–45µm and coarser cuts), grade-dependent. Please specify your target value in the request form and we will confirm availability.
Can Irregular Silicon Powder be made to custom specifications?
Yes. Irregular Silicon Powder can be produced to order — grade, particle size and packaging can be customized to your specification. Select "Custom Order" in the request form and provide your target values.
What is the minimum order quantity (MOQ)?
Order quantity is flexible and small quantities and prototype requests are welcome. Please state your required quantity in the form for an accurate quotation.
Can you export and ship Irregular Silicon Powder internationally?
Yes, export inquiries are welcome. Availability and shipping are reviewed based on destination country, grade and quantity.
Do you provide a Certificate of Analysis (COA) or technical data?
A Certificate of Analysis and technical data can be provided on request for supplied lots.
Related Products
Request a Quote for Irregular Silicon Powder
Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.