650mm UHP Graphite Electrode with Low Consumption for Steel Mill
650mm UHP Graphite Electrode with Low Consumption for Steel Mill
Graphite electrodes deliver unrivaled high-temperature performance, with a sublimation temperature of 3650–3697°C, enabling stable operation above 2500°C—far exceeding metal electrodes' heat resistance limits. Their ultra-low thermal expansion coefficient (just 1/40 of steel) grants excellent thermal shock resistance, preventing cracking during rapid temperature swings in smelting or frequent equipment startups. Premium needle coke raw materials optimize their crystal structure, boosting stability and service life in ultra-high-power applications. In electric arc furnace steelmaking, they maintain structural integrity at 3000°C arc temperatures, while in silicon pulling furnaces, they ensure precise temperature control, elevating crystal yield. This reliability minimizes downtime, enhances production continuity, and delivers long-term value for metallurgical and high-temperature industrial processes.
Type: Graphite Electrode
Application: smelting industries , steel -making
Length: 1400-2800mm
Grade: UHP (Ultra High Power)
Resistance (μΩ.m): 5.5
Apparent Density (g/cm3): 1.69
Thermal Expansion: 1.4
Flexural Strength (N/m2): 12
ELASTIC MODULUS: 8.0
ASH: 0.3% Max
Raw Material: Needle Coke,Petroleum Coke
Nipple: 3TPI 4TPI
Style: UHP Ultra High Power Graphite Electrode
Color: Grey Black
Physical and chemical indexes of ordinary power graphite electrode
| Nominal Diameter(mm) | ||||||||
| 75--200 | 250--300 | 400--500 | ||||||
| Item | Classify | Unit | Superior product | First grade | Superior product | First grade | Superior product | First grade |
| A | B | A | B | A | B | |||
| electrical resistivity ≯ | electrode | μΩ.m | 8 | 9 | 8 | 9 | 8 | 9 |
| joint | 7.5 | 7.5 | 7.5 | |||||
| breaking strength≯ | electrode | M Pa | 10 | 10 | 8 | |||
| joint | 15 | 15 | 15 | |||||
| elasticity modulus≯ | electrode | GP a | 12 | 12 | 12 | |||
| joint | 14 | 14 | 14 | |||||
| volume density≯ | electrode | g/cm3 | 1.58 | 1.58 | 1.58 | |||
| joint | 1.68 | 1.68 | 1.68 | |||||
| CTE(100-600)≯ | electrode | X10-6/ºC | 2.7 | 2.7 | 2.7 | |||
| joint | 2.5 | 2.5 | 2.5 | |||||
| Ash≯ | % | 0.3 | 0.3 | 0.3 | ||||
| Note: ash and thermal expansion coefficient are reference indexe |
Physicochemical index of high power graphite electrode
| Item | Classify | Unit | Nominal Diameter(mm) | ||
| 200-400 | 450-500 | 550-600 | |||
| electrical resistivity≯ | electrode | μΩ.m | 7 | 7 | 7 |
| joint | 6 | 6 | 5.8 | ||
| breaking strength≯ | electrode | M Pa | 10.5 | 10 | 10 |
| joint | 14 | 14 | 16 | ||
| elasticity modulus≯ | electrode | GP a | 12 | 12 | 12 |
| joint | 16 | 16 | 16 | ||
| volume density≯ | electrode | g/cm3 | 1.62 | 1.62 | 1.62 |
| joint | 1.72 | 1.72 | 1.72 | ||
| CTE(100C-600C)≯ | electrode | X10-6/ºC | 2.4 | 2.4 | 2.4 |
| joint | 2.3 | 2.2 | 2.2 | ||
| Ash≯ | % | 0.3 | 0.3 | 0.3 | |
| Note: ash and thermal expansion coefficient are reference indexes |
Physical and chemical indexes of super high power graphite electrode
| Item | Classify | Unit | Nominal Diameter(mm) | ||
| 300-400 | 450-500 | 550-700 | |||
| electrical resistivity≯ | electrode | μΩ.m | 6.2 | 6.2 | 6.3 |
| joint | 5 | 5 | 4.5 | ||
| breaking strength≯ | electrode | M Pa | 10.5 | 10.5 | 11 |
| joint | 18 | 18 | 20 | ||
| elasticity modulus≯ | electrode | G Pa | 14 | 14 | 14 |
| joint | 18 | 18 | 22 | ||
| volume density≯ | electrode | g/cm3 | 1.66 | 1.66 | 1.66 |
| joint | 1.75 | 1.75 | 1.75 | ||
| CTE(100C-600C)≯ | electrode | X10-6/ºC | 1.5 | 1.5 | 1.4 |
| joint | 1.4 | 1.4 | 1.2 | ||
| Ash≯ | % | 0.3 | 0.3 | 0.3 | |
| Note: ash and thermal expansion coefficient are reference indexes |
Advantages of Graphite electrode:
1. Reduce graphite electrodes lateral oxidation rate.
2. Lessen graphite electrodes consumption rate by 15%~20%.
3. Improve graphite electrodes cost efficiency.
4. It is a more cost-effective solution through reducing graphite electrodes purchasing cost by 10%~15%.
5. It is a production efficiency improving solution through reducing risk of graphite electrodes breakage and falling down.





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