RH,HP,UHP Graphite Electrodes Dia: 300mm(Length 1800mm), 350mm(Length:1800mm),400mm(length:1800,2000mm)450mm(Length:1800,2000mm) for Electrical arc furnace
Products Description:
Grade: RP HP UHP
Diameter:300mm 350mm 400mm 450mm 500mm 550mm 600mm 700mm(12inch,14inch,16inch,18inch,20inch,22inch, 24 inch,28inch)
Length: 1800/2000/2300/2600mm
Nipple: 3TPI, 4TPI, 4TPIL
Material: needle coke
| Regular Power (RP) | High Power (HP) | Ultral High Power (UHP) | |
| Graphite Electrodes | Electrodes Graphite | Electrodes Graphite | Electrodes Graphite |
| Bulk Density | ≥ 1.58g/cc | ≥ 1.65g/cc | ≥1.68g/cc |
| Specific Resistivity | ≤7.5Ω.m | ≤ 6.0Ω.m | ≤ 5.5 Ω.m |
| Flexural Strength | ≥ 10.0MPa | ≥ 11.0MPa | ≥ 12.0MPa |
| Elastic Modulus | ≤10.0GPa | ≤12.0GPa | ≤14.0GPa |
| Co-efficient of Thermal Expansion | ≤ 2.4 x 10-6/°C | ≤ 2.2 x 10-6/°C | ≤ 1.9 x 10-6/°C |
| Ash | ≤ 0.5% | ≤ 0.3% | ≤ 0.2% |
| Nipples | Nipples | Nipples | Nipples |
| Bulk Density | ≥ 1.65g/cc | ≥1.72g/cc | ≥1.75g/cc |
| Specific Resistivity | ≤ 6.5Ω.m | ≤ 5.5Ω.m | ≤ 4.5 Ω.m |
| Flexural Strength | ≥ 12.0MPa | ≥ 14.0MPa | ≥ 16.0MPa |
| Elastic Modulus | ≤12.0GPa | ≤16.0GPa | ≤18.0GPa |
| Co-efficient of Thermal Expansion | ≤ 2.0 x 10-6/°C | ≤ 1.8 x 10-6/°C | ≤ 1.4 x 10-6/°C |
| Ash | ≤ 0.5% | ≤ 0.3% | ≤ 0.2% |
Specification
| HP Graphite Electrode | Unit | Φ200-400 | Φ450-550 | Φ600-700 | ||
| Specific Resistance≤ | Electrode | ΜΩ·M | 6.8 | 7.5 | 7.5 | |
| Nipple | 6.2 | 6.3 | 6.3 | |||
| Transverse Strength≥ | Electrode | Mpa | 10.5 | 10.8 | 8.5 | |
| Nipple | 15 | 15 | 17 | |||
| Elastic Modulus≤ | Electrode | Gpa | 12 | 12 | 14 | |
| Nipple | 16 | 16 | 16 | |||
| Ash Content≤ | Electrode | % | 0.3 | 0.3 | 0.3 | |
| Nipple | 0.3 | 0.3 | 0.3 | |||
| Bulk Density≥ | Electrode | G/cm³ | 1.68 | 1.65 | 1.6 | |
| Nipple | 1.74 | 1.74 | 1.72 | |||
| (C.T.E)≤ | Electrode | 10-6/ºC | 2.3 | 2.3 | 2.4 | |
| Nipple | 2.1 | 2.1 | 2.2 | |||
| UHP Graphite Electrode | Unit | Φ300-400 | Φ450-550 | Φ600-700 | ||
| Specific Resistance≤ | Electrode | ΜΩ·M | 6 | 6.5 | 5.8 | |
| Nipple | 5 | 5.5 | 4.3 | |||
| Transverse Strength≥ | Electrode | Mpa | 11 | 10.5 | 10 | |
| Nipple | 17 | 17 | 23 | |||
| Elastic Modulus≤ | Electrode | Gpa | 14 | 14 | 14 | |
| Nipple | 18 | 18 | 22 | |||
| 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 | |||
Bitmap
| Electrode | 10-6/ºC | 1.4 | 1.4 | 1.5 | |
| Nipple | 1.3 | 1.3 | 1.3 | |||
| Allowable Current-Carrying Capacities | |||
| Nominal Diameter | HP Graphite Electrode | ||
| mm | inch | Current-Carrying Capacity(A) | Current Density(A/cm2) |
| 300 | 12 | 13000-17400 | 17-24 |
| 350 | 14 | 17400-24000 | 17-24 |
| 400 | 16 | 21000-31000 | 16-24 |
| 450 | 18 | 25000-40000 | 15-24 |
| 500 | 20 | 30000-48000 | 15-24 |
| 550 | 22 | 37000-57000 | 15-23 |
| 600 | 24 | 44000-67000 | 15-23 |
| 650 | 26 | 50000-68000 | 15-23 |
| 700 | 28 | 54000-73000 | 15-23 |
Electrode palletizing and packing
All electrodes are to be palletized on to one pair of wooden stringers complete with end caps, sombreros (or end covers), brand labels and electrode tags to form the most basic of pallet formations.
All the wood used for the palletizing, packaging, blocking and bracing is to be heat treated conforming to, and marked with, the ISPM No15 requirements. It applies to all wood materials with a thickness greater than 6mm. Wood based products such as plywood, particle board, orientated strand board, medium-density fiberboard, etc. are all exempt.
All parts are to be stamped/branded with the internationally recognized "wheat stamp".
Materials and specifications
Summary of Materials
- Wooden stringers
- Steel strapping
- End caps and sombreros
- Brand labels
- Electrode identification tags
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.
Programmable properties
- Good electrical conductivity.
- High resistance to thermal shock
- High mechanical strength
Zoey GENG
Mob: +86-18201566158
Tel : +86-516-8355-6968
Fax:+86-56-8355-9868
Website: jiang-long.en.made-in-china.com
Jiangsu Jianglong New Enery Technology Co.,Ltd
Add:No.,8 East industry Avenue ,Yangtun Town,Pei County,Jiangsu,China