What are the basic properties of graphite electrodes?
Graphite electrodes are an important carbon material. Due to their unique physical and chemical properties, they are widely used in industrial production and scientific research.
Specifications Of RP HP UHP Graphite Electrode
| Items | Regular power(RP) | High power(HP) | Ultrahigh power(UHP) | |||||||
| ⌽200-300 | ⌽350-600 | ⌽700 | ⌽200-400 | ⌽450-600 | ⌽700 | ⌽250-400 | ⌽450-600 | ⌽700 | ||
| ResistanceμΩm(Max) | Electrode | 7.5 | 8.0 | 6.5 | 7.0 | 5.5 | 5.5 | |||
| Nipple | 6.0 | 6.5 | 5.0 | 5.5 | 3.8 | 3.6 | ||||
| BulkDensityg/cm3(Min) | Electrode | 1.53 | 1.52 | 1.53 | 1.62 | 1.60 | 1.62 | 1.67 | 1.66 | 1.66 |
| Nipple | 1.69 | 1.68 | 1.73 | 1.72 | 1.75 | 1.78 | ||||
| BendingStrengthMpa(Min) | Electrode | 8.5 | 7.0 | 6.5 | 10.5 | 9.8 | 10.0 | 11.0 | 11.0 | |
| Nipple | 15.0 | 15.0 | 16.0 | 16.0 | 20.0 | 20.0 | ||||
| Young'smodulusGpa(Max) | Electrode | 9.3 | 9.0 | 12.0 | 12.0 | 14.0 | 14.0 | |||
| Nipple | 14.0 | 14.0 | 16.0 | 16.0 | 18.0 | 22.0 | ||||
| Ash%(Max) | Electrode | 0.5 | 0.5 | 0.3 | 0.3 | 0.3 | 0.3 | |||
| Nipple | 0.5 | 0.5 | 0.3 | 0.3 | 0.3 | 0.3 | ||||
| CTE(100-600ºC)×10-6/ºC | Electrode | 2.9 | 2.9 | 2.4 | 2.4 | 1.5 | 1.4 | |||
| Nipple | 2.8 | 2.8 | 2.2 | 2.2 | 1.4 | 1.2 | ||||
Graphite electrodes are mainly composed of pure flake graphite, which has good conductivity and high temperature resistance. Its melting point is as high as 3652℃, which is the highest melting point among known substances. In addition, graphite electrodes also have excellent chemical stability and corrosion resistance, and can maintain stable performance in many extreme environments.
