China φ 300-550mm Petroleum Coke HP Graphite Electrode for Electric Arc Furnace, Find details about China Graphite Electrode, Graphite Electrodes from φ 300-550mm Petroleum Coke HP Graphite Electrode for Electric Arc Furnace
Graphite Electrode 8''-28'' Diameter for sale
Main Products Grades : NP,IP, HP, SHP, UHP
Normal Power Graphite Electrodes (NP)
Impregnation Power Graphite Electrodes (IP)
High Power Graphite Electrodes (HP)
Special Power Graphite Electrodes (SHP)
Ultra High Power Graphite Electrodes (UHP)
All graphite electrodes are offered with tapered nipples, i.e. 3 or 4 threads per inch, and meet the internationally accepted tolerances as per NEMA CG 1/ IEC 60239 / JIS R7201 standards.
Applications
Used in EAF and LF for steel making, as well as in electric smelting furnace for producing industrial silicon, phosphorus, etc.
Programmable properties
Good electrical conductivity
High resistance to thermal shock
High mechanical strength
TECHNICAL PARAMETERS
Supply scope of graphite electrode( in diameter) :Φ200 (8 inch)- Φ700mm(24 inch); We can design tailor products as per the customer's actual operational parameters.
Graphite Electrode
RP / HP / SHP / UHP Graphite electrode | ||||||
Standard sizes of electrode | ||||||
Specification ( Inch ) | Allow Diamater (mm) | Allowable Length (mm ) | ||||
Nominal Diamater | Max | Min | Nominal Length | Max | Min | |
6 | 150 | 154 | 151 | 1600 | 1700 | 1500 |
1800 | 1875 | 1700 | ||||
8 | 200 | 205 | 200 | 1600 | 1700 | 1500 |
1800 | 1875 | 1700 | ||||
9 | 225 | 230 | 225 | 1600 | 1700 | 1500 |
1800 | 1875 | 1700 | ||||
10 | 250 | 256 | 251 | 1600 | 1700 | 1500 |
1800 | 1875 | 1700 | ||||
12 | 300 | 307 | 302 | 1800 | 1875 | 1700 |
14 | 350 | 357 | 352 | 1600 | 1700 | 1500 |
1800 | 1875 | 1700 | ||||
16 | 400 | 409 | 403 | 1600 | 1500 | 1500 |
1800 | 1875 | 1700 | ||||
2100 | 2175 | 1975 | ||||
18 | 450 | 460 | 454 | 1800 | 1875 | 1700 |
2100 | 2175 | 1975 | ||||
2400 | 2475 | 2275 | ||||
20 | 500 | 511 | 505 | 1800 | 1875 | 1700 |
2100 | 2175 | 1975 | ||||
2400 | 2475 | 2275 | ||||
22 | 550 | 562 | 556 | 2100 | 2175 | 1975 |
2400 | 2475 | 2275 | ||||
24 | 600 | 613 | 607 | 2100 | 2175 | 1975 |
2400 | 2475 | 2275 | ||||
2800 | 2850 | 2550 | ||||
28 | 700 | 714 | 708 | 2400 | 2475 | 2275 |
2800 | 2850 | 2550 |
Item | Unit | RP | HP | UHP | |||||||
Φ300-500 | Φ550-800 | Φ300-500 | Φ550-700 | Φ300-500 | Φ550-600 | Φ700-800 | |||||
Electric Resistivity | Electrode | μΩM | 7.5-8.6 | 7.5-8.8 | 5.5-6.8 | 5.5-7.0 | 4.6-6.2 | 4.5-6.0 | 4.5-5.8 | ||
Nipple | 4.5-6.0 | 4.0-5.5 | 3.5-5.0 | 3.4-4.5 | 3.3-4.3 | ||||||
Bending strength | Electrode | MPa | ≥7.5 | ≥6.5 | ≥10.0 | ≥8.5 | ≥10.5 | ≥10.0 | ≥10.0 | ||
Nipple | ≥16.0 | ≥18.0 | ≥20.0 | ≥22.0 | ≥23.0 | ||||||
Elastic modulus | Electrode | Gpa | ≤9.0 | ≤13.0 | ≤14.0 | ≤14.0 | ≤14.0 | ||||
Nipple | ≤13.0 | ≤15.0 | ≤20.0 | ≤22.0 | ≤22.0 | ||||||
Bulk density | Electrode | g/cm³ | 1.54-1.62 | 1.62-1.70 | 1.66-1.73 | 1.68-1.74 | |||||
Nipple | 1.70-1.78 | 1.72-1.80 | 1.75-1.82 | 1.78-1.85 | |||||||
Ash | Electrode | % | ≤0.3 | ||||||||
Nipple | |||||||||||
CTE(100-600ºC) | Electrode | 10-6/ ºC | 2.20-2.60 | 1.80-2.20 | 1.20-1.50 | 1.10-1.50 | |||||
Nipple | 1.50-1.90 | 1.50-1.80 | 1.10-1.40 | 1.00-1.30 |
Nominal diameter(mm) | RP | HP | UHP | ||||
Current carrying capacity | Current density | Current carrying capacity | Current density | Current carrying capacity | Current density | ||
in | mm | A | A/cm2 | A | A/cm2 | A | A/cm2 |
12 | 300 | 10000-13000 | 14-18 | 13000-17400 | 17-24 | 15000-22000 | 20-30 |
14 | 350 | 13500-18000 | 14-18 | 17400-24000 | 17-24 | 20000-30000 | 20-30 |
16 | 400 | 18000-23500 | 14-18 | 21000-31000 | 16-24 | 25000-40000 | 19-30 |
18 | 450 | 22000-27000 | 13-17 | 25000-40000 | 15-24 | 32000-45000 | 19-27 |
20 | 500 | 25000-32000 | 13-16 | 30000-48000 | 15-24 | 38000-55000 | 18-27 |
22 | 550 | 28000-34000 | 12-14 | 34000-53000 | 14-22 | 45000-65000 | 18-27 |
24 | 600 | 30000-36000 | 11-13 | 38000-58000 | 13-21 | 50000-75000 | 18-26 |
28 | 700 | 34000-42000 | 9-11 | 45000-72000 | 12-19 | 70000-120000 | 18-25 |
32 | 800 | 43000-54000 | 8-10 | ---- | ---- | ---- | ---- |