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CNPC POWDER© are a specialist supplier of Ultrafine Tin Powders in small particle sizes, which meet specific technical requirements such as apparent density, specific surface area and purity.
Ultrafine Tin Powder is produced by the inert gas atomization, the powder is spherical shape and the purity more than 99.95%. The Ultrafine Tin Powder is low oxygen content. It best used in 3d print, injection molding, diamond tools and solder.
The below is the physical properties of Tin Powder:
| CAS NO.: | 7440-31-5 |
|---|---|
| HS code: | 2609000000 |
| Molecular Formula: | Sn |
| Color: | Grey silvery powder |
| Shape: | Spherical form or drop form |
| Purity: | 99.5%, 99.95% |
| Product method: | Water atomized and Gas atomized |
| Molecular Weight: | 118.69 |
| Freezing/Melting Point: | 231.9-233℃ |
| Boiling Point: | 2270 ℃ |
| Specific Gravity/Density: | 7.31g/cm3 |
| Applicable Solubility in water: | Slightly soluble in hot water. |
Tin powders are used in diamond tooling, powder metallurgy,electronics, radiation shielding diverse applications, markets and technologies by virtue of their unique properties.
Typical applications may include pressed and sintered components, bearings and bushings, metallurgical alloying, chemical processes, friction parts, surface engineering, decorative, welding and brazing, etc.
Different grades application suggest:
- The coarse grades (CNPC-Sn99.5 200mesh,300mesh)are used in chemical and metallurgical reactions.
- The intermediate grades(CNPC- Sn100, CNPC-Sn200) find their largest use when mixed with copper to produce P/M oil-impregnated bronze bearings.
- The finest grades(CNPC-Sn300, CNPC-Sn400, CNPC-Sn10-15) are generally used in diamond tools,plastics, solder pastes, and other non-compacting applications.
| Grade | Composition (%) | O(%) | A.D.g/cm3 | Particle Size | ||||
|---|---|---|---|---|---|---|---|---|
| +100(150μm) | +140(106μm) | +200(75μm) | +325(45μm) | -325(45μm) | ||||
| CNPC-Sn100 | Sn99.9min | 0.2max | 3.0-3.8 | ≤5 | Bal. | ≤10 | ||
| CNPC-Sn200 | - | ≤1 | ≤5 | ≤30 | Bal. | |||
| CNPC-Sn300 | - | - | ≤1 | ≤10 | Bal. | |||
| CNPC-Sn400 | - | - | - | - | ≥95 | |||
| CNPC-Sn10-15 | D50:10-15μm | |||||||
| Grade | Package |
|---|---|
| CNPC-Sn200 | 5KG/Vacuum bag |
| CNPC-Sn300 | 5KG/Vacuum bag |
| CNPC-Sn400 | 5KG/Vacuum bag |
| CNPC-Sn10-15 | 5KG/Vacuum bag |
