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Download- Properties
- Application
- Standard Specification
- Packing and Storage
CNPC POWDER© is a specialist supplier of tin powders in a range of particle sizes, which meet specific technical requirements such as Apparent Density, Specific Surface Area and Purity.
The below are 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. |
The atomized tin powder including water atomized tin powder and gas atomized tin powder (such as Nitrogen, Argon and other inert gas)
-
Water Atomized Tin Powder
High purity: Sn>99.5%, Irrgular shape
CNPC Grade:200mesh and 300mesh. -
Gas Atomized Tin Powder
High purity:Sn>99.95%, spherical shape.
CNPC Grade:100 mesh, 200mesh, 300mesh, 400mesh,10-15um.
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 |
