Graphite Electrode
- High content needle coke
- Large production capacity
- Technical Properties of Graphite Electrode
- Production Process
Physical and Chemical Index
| Item | Unit | RP | HP | UHP | |||||
| 300-500 | 550-800 | 300-500 | 550-700 | 300-500 | 550-600 | 700-800 | |||
| Electric Resistivity | Electrode | μΩ·m | 7.5-8.6 | 7.5-8.8 | 5.5-6.8 | 5.5-7.0 | 4.6-6.2 | 4.5-6.0 | 4.5-5.8 |
| Nipple | 4.5-6.0 | 4.0-5.5 | 3.5-5.0 | 3.4-4.5 | 3.3-4.3 | ||||
| Bending Strength | Electrode | Mpa | ≥7.5 | ≥6.5 | ≥10.0 | ≥8.5 | ≥10.5 | ≥10.0 | ≥10.0 |
| Nipple | ≥16.0 | ≥18.0 | ≥20.0 | ≥22.0 | ≥23.0 | ||||
| Elastic Modulus | Electrode | Gpa | ≤9.0 | ≤13.0 | ≤14.0 | ||||
| Nipple | ≤13.0 | ≤5.0 | ≤20.0 | ≤22.0
|
|||||
| Bulk Density | Electrode | g/cm³ | 1.54-1.62 | 1.62-1.70 | 1.66-1.73 | 1.68-1.74 | |||
| Nipple | 1.70-1.78 | 1.72-1.80 | 1.75-1.82 | 1.78-1.85 | |||||
| Ash | Electrode | % | ≤0.3 | ||||||
| Nipple | |||||||||
| CTE
(100-600℃) |
Electrode | 10-6/℃ | 2.20-2.60 | 1.80-2.20 | 1.20-1.50 | 1.10-1.50 | |||
| Nipple | 1.50-1.90 | 1.50-1.80 | 1.10-1.40 | 1.00-1.30 | |||||
Current Carrying Capacity
| Nominal Diameter | Regular Power | High Power | Ultra High Power | ||||
| mm | inch | Current Carrying Capacity
(A) |
Current Density (A/cm2) | Current Carrying Capacity
(A) |
Current Density (A/cm2) | Current Carrying Capacity
(A) |
Current Density (A/cm2) |
| 75 | 3 | 1000-1400 | 22-31 | ||||
| 100 | 4 | 1500-2400 | 19-30 | ||||
| 130 | 5 | 2200-3400 | 17-26 | ||||
| 150 | 6 | 3000-4500 | 16-25 | ||||
| 200 | 8 | 5000-6900 | 15-21 | 5500-9000 | 18-28 | ||
| 250 | 10 | 7000-10000 | 14-20 | 8000-13000 | 18-25 | ||
| 300 | 12 | 10000-13000 | 14-18 | 13000-17400 | 17-24 | 15000-22000 | 20-30 |
| 350 | 14 | 13500-18000 | 14-18 | 17400-24000 | 17-24 | 20000-30000 | 20-30 |
| 400 | 16 | 18000-23500 | 14-18 | 21000-31000 | 16-24 | 25000-40000 | 19-30 |
| 450 | 18 | 22000-27000 | 13-17 | 25000-40000 | 15-24 | 32000-45000 | 19-27 |
| 500 | 20 | 25000-32000 | 13-16 | 30000-48000 | 15-24 | 38000-55000 | 18-27 |
| 550 | 22 | 28000-34000 | 12-14 | 34000-53000 | 14-22 | 45000-65000 | 18-27 |
| 600 | 24 | 30000-36000 | 11-13 | 38000-58000 | 13-21 | 50000-75000 | 18-26 |
| 650 | 26 | 32000-39000 | 10-12 | 41000-65000 | 12-20 | 60000-80000 | 18-25 |
| 700 | 28 | 34000-42000 | 9-11 | 45000-72000 | 12-19 | 70000-120000 | 18-30 |
