Henan Rongsheng Xinwei New Materials Research Institute Co., Ltd
High Quality Industrial Refractory Material Manufacturer And Supplier
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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
Parameter of Graphite Electrodes and Nipple:
| 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 | |