UHP Graphite Electrode 550mm (22 inch)
Graphite electrode is one of the most important metallurgical products, mainly used as conductive material in electric arc furnace metallurgy production. UHP graphite electrodes are mainly used for steelmaking high-power and ultra-high power electric furnaces.
Graphite electrode Dimension
● Nominal Diameter: 550mm (min 556mm, max 562mm)
● Nominal Length: 2400 mm (+75mm,-125mm)
● Nipple: 298T4N
● Nipple Diameter: 298.45 mm
● Nipple Length: 355.6 mm
● Typical Weight: Electrodes and Nipple Approx.1005 kg
Physical and Chemical Parameters of UHP550mm Graphite Electrode
| Index | Unit | YB/T4090 Industry Standard | |
| Typical Value | |||
| LSR≤ | Electrode | μΩ.M | 4.5-5.8 |
| Nipple | 3.4-4.5 | ||
| Flexural Strength ≥ | Electrode | Mpa | 6.0-8.0 |
| Nipple | 15.0-24.0 | ||
| Elastic Modulus ≤ | Electrode | Gpa | 9.0-16.0 |
| Nipple | 12.0-18.0 | ||
| Bulk Density ≥ | Electrode | g/cm³ | 1.65-1.80 |
| Nipple | 1.76-1.86 | ||
| CTE ≤ | Electrode | 10-6/ ℃ | 1.1 |
| Nipple | 0.9 | ||
| Ash ≤ | % | 0.3 | |
| Current Carrying Capacity | A | EAF 45000-68000LF 45000-69000 | |
Advantage
● Withstand large currents, high discharge rate.
● Good dimension stability, not easy to deform.
● Resistant to cracking & spalling.
● High resistance to oxidation and thermal shock.
● High mechanical strength, low electrical resistance.
● High machining accuracy, good surface finishing.
