High Power Graphite Electrode With Nipple UHP Graphite Electrode For EAF Electric Arc Furnace
Graphite electrode, mainly petroleum coke, needle coke as raw material, coal pitch as binder, calcination, ingredients, kneading,molding, baking and graphitization, machining and made, which is released in electric arc furnace in the form of arc conductor of electricity to heat melting furnace charge, with low resistivity, good conductivity, low ash, uniform and compact structure, good oxidation resistance, high mechanical strength, etc.
Graphite electrode has the advantages of low resistivity, high electrical conductivity and thermal conductivity, good oxidation resistance, good thermal shock resistance, high mechanical strength, easy to machine,etc.
Features of RP HP UHP Graphite Electrodes and Nipple For Electric Arc Furnace
1. Low electric resistance
2. Good electric and thermal conductivity
3. High density
4. High anti-oxidation capability
5. High mechanical strength
6. High machining accuracy
Parameter of Graphite Electrodes and Nipple:
Technical Parameter of Graphite Electrodes and Nipple:
Regular Graphite Electrode
| Item | Nominal diameter mm | ||||||||||
| 75~130 | 150~225 | 250~300 | 350~450 | 500~800 | |||||||
| Grade | Excellent | 一 | Ex | 一 | Ex | 一 | Ex | 一 | Ex | 一 | |
| Resistivity μΩ·m ≤ |
Electrode | 8.5 | 10.0 | 9.0 | 10.5 | 9.0 | 10.5 | 9.0 | 10.5 | 9.0 | 10.5 |
| Connector | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | ||||||
| Flexural strength MPa ≥ | Electrode | 10.0 | 10.0 | 8.0 | 7.0 | 6.5 | |||||
| Connector | 15.0 | 15.0 | 15.0 | 15.0 | 15.0 | ||||||
| Elastic Modulus GPa ≤ | Electrode | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | |||||
| Connector | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | ||||||
| Bulk density g/cm3 ≥ | Electrode | 1.58 | 1.53 | 1.53 | 1.53 | 1.52 | |||||
| Connector | 1.70 | 1.70 | 1.70 | 1.70 | 1.70 | ||||||
| Thermal expansion coefficient 10-6/℃ room temperature ~600℃ ≥ |
Electrode | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | |||||
| Connector | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | ||||||
| Ash % ≤ | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | ||||||
High Power Graphite Electrodes
| Item | Nominal diameter mm | |||
| 200~400 | 450~500 | 550~700 | ||
| Resistivity μΩ·m ≤ |
Electrode | 7.0 | 7.5 | 7.5 |
| Connector | 6.3 | 6.3 | 6.3 | |
| Flexural strength MPa ≥ | Electrode | 10.5 | 10.0 | 8.5 |
| Connector | 17.0 | 17.0 | 17.0 | |
| Elastic Modulus GPa ≤ | Electrode | 14.0 | 14.0 | 14.0 |
| Connector | 16.0 | 16.0 | 16.0 | |
| Bulk density g/cm3 ≥ | Electrode | 1.60 | 1.60 | 1.60 |
| Connector | 1.72 | 1.72 | 1.72 | |
| Thermal expansion coefficient 10-6/℃ Room temperature~600℃ ≥ |
Electrode | 2.4 | 2.4 | 2.4 |
| Connector | 2.2 | 2.2 | 2.2 | |
| Ash % ≤ | 0.5 | 0.5 | 0.5 | |
Ultra High Power Graphite Electrode
| Item | Nominal diameter mm | ||||
| 300~400 | 450~500 | 550~650 | 700~800 | ||
| Resistivity μΩ·m ≤ |
Electrode | 6.2 | 6.3 | 6.0 | 5.8 |
| Connector | 5.3 | 5.3 | 4.5 | 4.3 | |
| Flexural strength MPa ≥ | Electrode | 10.5 | 10.5 | 10.0 | 10.0 |
| Connector | 20.0 | 20.0 | 22.0 | 23.0 | |
| Elastic Modulus GPa ≤ | Electrode | 14.0 | 14.0 | 1.66 | 14.0 |
| Connector | 20.0 | 20.0 | 1.78 | 22.0 | |
| Bulk density g/cm3 ≥ | Electrode | 1.67 | 1.66 | 1.66 | 1.68 |
| Connector | 1.74 | 1.75 | 1.78 | 1.78 | |
| Thermal expansion coefficient 10-6/℃ Room temperature~600℃ ≥ |
Electrode | 1.5 | 1.5 | 1.5 | 1.5 |
| Connector | 1.4 | 1.4 | 1.3 | 1.3 | |
| Ash % ≤ | 0.5 | 0.5 | 0.5 | 0.5 | |