graphite electrode, Ultra-high Power (UHP), High Power (HP), Regular Power (RP)], Electric Arc Furna
Graphite electrode is employed to offer high level of electrical conductivity and the capability to sustain extremely high level of dissipated heat, therefore is widely used for EAF (electric arc furnace scrap melting) ,LF ( ladle furnace steel refining) and the equivalent smelting process, like silicon, ferro-alloy, white phosphorus/ yellow phosphorus and etc.
Product type: RP (Regular Power)
HP (High Power)
SHP (Super High Power)
UHP (Ultra High Power)
Common size range: 250/300/350/400/450/500/550/600/700
Typical property of graphite electrode
|
Properties |
Unit |
Nominal Diameter Of Electrode |
||||
|
UHP |
HP |
RP |
||||
|
300-600mm |
650-800mm |
300-800mm |
300-800mm |
|||
|
Typical Value |
Typical Value |
Typical Value |
Typical Value |
|||
|
Specific electrical resistance ≤ |
Electrode |
µΩ.M |
4. 8-5 8 |
4. 6-5. 8 |
5. 8-6. 6 |
7. 8-8. 8 |
|
Nipple |
|
3. 8-4. 5 |
3. 8-4. 5 |
4. 2-5. 0 |
5. 0-6. 5 |
|
|
Flexural/Bending strength ≥ |
Electrode |
Mpa |
10. 0-14.0 |
10. 0-14.0 |
10. 0-13.0 |
7.0-12.0 |
|
Nipple |
|
20.0-26.0 |
20. 0-26. 0 |
18.0-22.0 |
15.0-20.0 |
|
|
Young' s modulus/Elastic Modulus ≤ |
Electrode |
Gpa |
9.0-13.0 |
10. 0-14.0 |
8. 0-12.0 |
7. 0-9. 3 |
|
Nipple |
|
15. 0-18.0 |
15.0-18.0 |
14.0-16.0 |
12.0-14.0 |
|
|
Bulk Density ≥ |
Electrode |
g/cm3 |
1.68-1.74 |
1.70-1.74 |
1.62-1.66 |
1.53-1.56 |
|
Nipple |
|
1.77-1.82 |
1.78-1.84 |
1.74-1.80 |
1.70-1.74 |
|
|
CTE(100-600℃) ≤ |
Electrode |
10 -6 /℃ |
1.1-1.4 |
1.1-1.4 |
1.6-1.9 |
2. 2-2. 6 |
|
Nipple |
|
0. 9-1.2 |
0. 9-1.2 |
1.1-1.4 |
2. 0-2. 5 |
|
|
Ash content ≤ |
|
% |
0.3 |
0.3 |
0.3 |
0.5 |
|
Note:The figures given above are typical properties for representative products, other tailored product are available upon request. |
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Graphite electrode size table
|
规格（英寸） |
直径允许范围（mm) Allowable Diameter(mm) |
长度允许范围（mm) Allowable Length(mm) |
||||
|
公称直径 |
最大 |
最小 |
公称长度 |
最大 |
最小 |
|
|
10 |
250 |
256 |
251 |
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 |
||||
|
2700 |
2850 |
2550 |
||||
Graphite electrode operation current
|
公称直径(mm) Nominal Diameter |
允许电流负荷（A） Operation Current (Ampere) |
||||
|
普通功率 石墨电极 RP Electrode |
浸渍石墨电极 Impregnated Electrode |
高功率石墨电极 HP Electrode |
高功率石墨 电极II型 Type II HP |
超高功率 石墨电极 UHP Electrode |
|
|
75 |
1000～1400 |
1300～2000 |
—— |
—— |
—— |
|
100 |
1500～2400 |
1800～3000 |
—— |
—— |
—— |
|
130 |
2200～3400 |
2800～4200 |
—— |
—— |
—— |
|
150 |
3000～4500 |
4000～5000 |
—— |
—— |
—— |
|
200 |
5000～6900 |
4800～9000 |
5500～9000 |
—— |
—— |
|
250 |
7000～10000 |
8000～12000 |
8000～13000 |
—— |
—— |
|
300 |
10000～13000 |
11000～16000 |
13000～17400 |
—— |
15000～22000 |
|
350 |
13500～18000 |
15000～22000 |
17400～24000 |
19000～28000 |
20000～30000 |
|
400 |
18000～23500 |
20000～28000 |
21000～31000 |
23000～35000 |
25000～40000 |
|
450 |
22000～27000 |
24000～34000 |
25000～40000 |
30000～42000 |
32000～45000 |
|
500 |
25000～32000 |
28000～42000 |
30000～48000 |
35000～50000 |
38000～55000 |
|
550 |
28000～36000 |
—— |
34000～55000 |
—— |
45000～65000 |
|
600 |
35000～41000 |
—— |
38000～61000 |
—— |
50000～75000 |
|
700 |
39000～48000 |
—— |
45000～75000 |
—— |
60000～100000 |
Note: On EAF, the current should be reduced by 10%; On LF, the current should be increased by 10%
![Second slide [1140x500]](/uploads/PicturesManage/20180223/water_884ccb3d3c1a169e06d9a99b1165c851.jpg)
