Graphite Electrode HP
- HP Graphite Electrodes.
- Flexural Strength.
- Used for High Power Electric Arc Furnaces.
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High-Power Graphite Electrodes (EGP-HP), which can also be referred to as HP Graphite Electrodes, Graphite Electrode HP, are manufactured for operation at currents not exceeding 18-25 A / cm2.
HP Graphite Electrodes Application
HP graphite electrodes for sale are mainly used for high-power arc furnaces and ladle furnaces.
Rongsheng Graphite Electrodes for Sale
Rongsheng Refractory Company can produce various specifications of HP graphite electrodes in accordance with customer requirements. Such as hp 450 graphite electrodes, HP grade 350mm graphite electrodes, etc. As a graphite electrode manufacturer from China, Rongsheng has the advantage of Graphite Electrodes HP. Buy directly from the factory, with high-quality products and profitable prices.
Physical and Chemical Indicators of Electrodes and Connectors(Nipples)
| Items | Nominal Diameter /mm | |||
| 200 ~ 400 | 450 ~ 500 | 550 ~ 700 | ||
| Electrical Resistivity, μΩ·m, ≤ | Electrodes | 7.0 | 7.5 | 7.5 |
| Nipples | 6.3 | 6.3 | 6.3 | |
| Flexural Strength, MPa ≥ | Electrodes | 10.5 | 10.0 | 8.5 |
| Nipples | 17.0 | 17.0 | 17.0 | |
| Elastic Modulus, GPa ≤ | Electrodes | 14.0 | 14.0 | 14.0 |
| Nipples | 16.0 | 16.0 | 16.0 | |
| Bulk Density, g/cm3, ≥ | Electrodes | 1.60 | 1.60 | 1.60 |
| Nipples | 1.72 | 1.72 | 1.72 | |
| CTE(Room Temperature-600℃), 10-6/℃ ≤ | Electrodes | 2.4 | 2.4 | 2.4 |
| Nipples | 2.2 | 2.2 | 2.2 | |
| Ash Content, % ≤ | 0.5 | 0.5 | 0.5 | |
| Note: Ash content is a reference indicator. | ||||
Shape, Size, and Tolerance of HP Graphite Electrodes
Electrodes Diameter and Length
| Nominal Diameter /mm | Actual Diameter /mm | Nominal Length /mm | ||
| Max | Min | Minimum Value of Black Skin | ||
| 200 | 205 | 200 | 197 | 1600/1800 |
| 225 | 230 | 225 | 222 | 1600/1800 |
| 250 | 256 | 251 | 248 | 1600/1800/2000 |
| 300 | 307 | 302 | 299 | 1600/1800/2000/2200 |
| 350 | 358 | 352 | 349 | 1600/1800/2000/2200 |
| 400 | 409 | 403 | 400 | 1600/1800/2000/2200 |
| 450 | 460 | 454 | 451 | 1600/1800/2000/2200 |
| 500 | 511 | 505 | 502 | 1800/2000/2200/2400 |
| 550 | 562 | 556 | 553 | 1800/2000/2200/2400/2700 |
| 600 | 613 | 607 | 604 | 2000/2200/2400/2700 |
| 650 | 663 | 659 | 656 | 2000/2200/2400/2700 |
| 700 | 714 | 710 | 707 | 2000/2200/2400/2700 |
| 750 | 765 | 761 | 758 | 2000/2200/2400/2700 |
| 800 | 816 | 812 | 809 | 2000/2200/2400/2700 |
Tolerance of Electrode Length
| Nominal Length /mm | Standard Length Deviation | Short Length Deviation | ||
| Max | Min | Max | Min | |
| 1600 | +100 | -100 | -100 | -275 |
| 1800 | +100 | -100 | -100 | -275 |
| 2000 | +100 | -100 | -100 | -275 |
| 2200 | +100 | -100 | -100 | -275 |
| 2400 | +100 | -100 | -100 | -275 |
| 2700 | +200 | -150 | -150 | -300 |
Current Load Recommendations for High Power Graphite Electrodes
| Nominal Diameter /mm | Allowable Current Load /A | Current Density /(A/cm2) |
| 200 | 5500 ~ 9000 | 18 ~ 25 |
| 225 | 6500 ~ 10000 | 18 ~ 25 |
| 250 | 8000 ~ 13000 | 18 ~ 25 |
| 300 | 13000 ~ 17400 | 17 ~ 24 |
| 350 | 17400 ~ 24000 | 17 ~ 24 |
| 400 | 21000 ~ 31000 | 16 ~ 24 |
| 450 | 25000 ~ 40000 | 15 ~ 24 |
| 500 | 30000 ~ 48000 | 15 ~ 24 |
| 550 | 34000 ~ 53000 | 14 ~ 22 |
| 600 | 38000 ~ 58000 | 13 ~ 21 |
| 650 | 41000 ~ 65000 | 12 ~ 20 |
| 700 | 45000 ~ 72000 | 12 ~ 19 |
