HP Graphite Carbon Electrodes Electric Arc Furnace
PRODUCE INFORMATIONS
UHP300/350/400/450/500/550/600 Graphite Electrode length 1800 with 4TPI nipple
Grade: UHP
Diameter:300/350/400/450/500/550/600MM
Length: 2400mm
Nipple: 3TPI, 4TPI,4TPIL
Material: Made of high quality petroleum bck, needle bck and coal tar pitch, appreciated by many foreign clients.
SPECTIIONS
Physical & Chemical Properties of Eleectrodes and Nipples
| UHP Graphite Electrode | Unit | Φ300-400 | Φ450-550 | Φ600-700 | |
| Specific Resistance≤ | Electrode | ΜΩ·M | 6.0 | 6.5 | 5.8 |
| Nipple | 5.0 | 5.5 | 4.3 | ||
| Transverse Strength≥ | Electrode | Mpa | 11.0 | 10.5 | 10.0 |
| Nipple | 17.0 | 17.0 | 23.0 | ||
| Elastic Modulus≤ | Electrode | Gpa | 14.0 | 14.0 | 14.0 |
| Nipple | 18.0 | 18.0 | 22.0 | ||
| Ash Content≤ | Electrode | % | 0.2 | 0.2 | 0.3 |
| Nipple | 0.2 | 0.2 | 0.3 | ||
| Bulk Density≥ | Electrode | G/cm³ | 1.68 | 1.66 | 1.68 |
| Nipple | 1.76 | 1.76 | 1.78 | ||
| (C.T.E)≤ | Electrode | 10-6/ºC | 1.4 | 1.4 | 1.5 |
| Nipple | 1.3 | 1.3 | 1.3 | ||
Allowable Current-Carrying Capacities
| Nominal Diameter | UHP Graphite Electrodes | ||
| mm | inch | Current-Carrying Capacity(A) | Current Density(A/CM²) |
| 300 | 12 | ||
| 350 | 14 | 20000-30000 | 20-30 |
| 400 | 16 | 25000-40000 | 20-30 |
| 450 | 18 | 32000-49000 | 20-30 |
| 500 | 20 | 40000-58000 | 20-30 |
| 550 | 22 | 47000-65000 | 18-28 |
| 600 | 24 | 52000-78000 | 18-28 |
| 650 | 26 | 60000-85000 | 18-28 |
| 700 | 28 | 62000-95000 | 18-28 |
Size of Graphite Electrodes and Allowable Tolerance
| Nominal Diameter | Actual Diameter(mm) | Length(mm) | Allowable Variation(mm) | ||||
| mm | inch | Max | min | Low Spot | Length | Short Length | |
| 300 | 12 | 307 | 302 | 299 | 1600/1800/2000 | ±100 | -275 |
| 350 | 14 | 357 | 352 | 349 | 1600/1800/2000 | ||
| 400 | 16 | 409 | 403 | 400 | 1600/1800/2000/2200 | ||
| 450 | 18 | 460 | 454 | 451 | 1600/1800/2000/2200 | ||
| 500 | 20 | 511 | 505 | 502 | 1600/1800/2000/2200 | ||
| 550 | 22 | 562 | 556 | 553 | 1800/2000/2200/2400 | ||
| 600 | 24 | 613 | 607 | 604 | 2000/2200/2400/2700 | ||
| 650 | 26 | 663 | 659 | 656 | 2000/2200/2400/2700 | ||
| 700 | 28 | 714 | 710 | 707 | 2000/2200/2400/2700 | ||
Recommend Tightening Torque
| Nominal Diameter (mm) | Torque(N·m) |
| 300 | 500-650 |
| 350 | 700-950 |
| 400 | 850-1150 |
| 450 | 1050-1400 |
| 500 | 1300-1700 |
| 550 | 1850-2400 |
| 600 | 2500-3800 |
| 650 | 3900-4300 |
| 700 | 4400-5200 |
Applications
Electrodes in electric arc furnace and ladle refining furnace for steel making;
Electrodes in electric smelting furnace for producing industrial silicon, yellow phosphorus, corundum and so on.
Good electrical conductivity.
High resistance to thermal shock
High mechanical strength
Programmable properties
Process
Features
* Full range of carbon materials, graphite materials, refactories and water treatment materials products and solutions; uhp graphite electrode manufacturer
* High output, with an annual output of 100,000 tons, timely delivery;
* Low resistivity
* High temperature strength
* Good thermal conductivity and electrical conductivity
* Low thermal expansion coefficient electric arc furnace graphite electrodes
* Low ash,Its ash content is controlled within 3%.
* Dense and equal structure,Low graphite electrode consumption.
* Good oxidation resistance
* High mechanical strength rp graphite electrode
