99.95% high purity and high density tungsten block counterweight tungsten block high specific gravity tungsten block polished tungsten block communication shielding tungsten block
1. Physical and chemical properties of the product:
1. Purity: W≥99.95%;
2. Density: ≥19.1g/cm3;
3. Flatness: ≤2%;
2. Product dimensions and tolerances
| thickness | Thickness tolerance | width | width tolerance | length | length tolerance | Availability |
| ＜0.2 | ±0.02 | 10-150 | ±2 | 500 | ±2 | cold rolled |
| 0.3 | ±0.03 | 10-250 | ±2 | 500 | ±2 | |
| 0.4 | ±0.04 | 10-300 | ±2 | 500 | ±2 | |
| 0.5 | ±0.05 | 10-300 | ±2 | 500 | ±2 | |
| 0.8 | ±0.07 | 10-300 | ±0.5 | 500 | ±0.5 | |
| 1.0 | ±0.08 | 10-300 | ±0.5 | 600 | ±0.5 | |
| 1.5 | ±0.12 | 10-400 | ±0.5 | 600 | ±0.5 | |
| 2.0 | ±0.12 | 10-500 | ±0.5 | 700 | ±0.5 | |
| 3.0 | ±0.20 | 10-500 | ±0.5 | 600 | ±0.5 | hot rolled |
| 4.0 | ±0.30 | 10-500 | ±0.5 | 600 | ±0.5 | |
| ≥5.0 | ±0.40% | 10-550 | ±0.5 | 600 | ±0.5 |
3.Production Process:
1. Tungsten billet
2. Inspection
3. Hot rolling
4. Leveling and Annealing
5. Alkaline washing
6. Inspection
7. Wenza
8. Leveling Annealing
9. Inspection
10. Cold rolling
11. Cut
12. Vacuum Annealing
13. Machine plus
14. Inspection
15. Packaging
16. Shipping
4.After rolling with a deformation amount of more than 60%, the density of the tungsten plate is basically close to the theoretical density of tungsten. Therefore, it has high strength, uniform internal structure and excellent high temperature creep resistance. , which is widely used in the production of cover plates in sapphire crystal growth furnaces, heating belts and connectors in vacuum furnaces, sputtering targets for plasma coating, evaporation tungsten boats and other products.