MOQ | 100 ton |
Port | Tianjin port , China |
Packaging | wooden pallet with steel belt |
Lead Time | 25 days |
low ash | low consumption |
Quality HP 300 * 1800mm graphite electrode with needle coke
Ultra high power / High power / Regular Power grade graphite electrode is made of needle coke imported from Japan , the production process of UHP HP RP graphite electrode is crushing, calcining,dosing, kneading, forming, baking, impregnation, secondary baking, graphitization and machining process , the nipples of china graphite electrodes are made by three times impregnation and four times baking, the material of graphite electrode arc furnaces is needle coke imported from Japan.
UHP Graphite Electrode Technical Index
Item |
Unit |
Nominal Diameter Of Electrode |
||
UHP |
||||
Φ300-Φ500 |
Φ550-Φ700 |
|||
Resistivity |
Electrode |
μΩ.m |
≤5.8 |
≤5.8 |
Nipple |
≤3.8 |
≤3.8 |
||
Bending Strength |
Electrode |
Mpa |
≥12.0 |
≥12.0 |
Nipple |
≥18.0 |
≥20.0 |
||
Young's Modulus |
Electrode |
Gpa |
≤14.0 |
≤14.0 |
Nipple |
≤18.0 |
≤18.0 |
||
Bulk Density |
Electrode |
g/cm³ |
≥1.68 |
≥1.70 |
Nipple |
≥1.76 |
≥1.78 |
||
CET(100℃-60℃) |
Electrode |
x 10-6/℃ |
≤1.4 |
≤1.4 |
Nipple |
≤1.2 |
≤1.2 |
UHP Graphite Electrode Current Load Allowance
Nominal Diameter |
Cross Area |
Electrical Arc Furnace |
Refining Furnace |
||
Current Load Allowance |
Current Density |
Current Load Allowance |
Current Density |
||
mm |
cm2 |
A |
A/ cm2 |
A |
A/ cm2 |
350 |
973 |
23000-30000 |
24-30 |
26000-31000 |
27-31 |
400 |
1275 |
28000-38000 |
22-31 |
31000-40000 |
24-31 |
450 |
1622 |
36000-45000 |
22-28 |
38000-48000 |
23-30 |
500 |
2000 |
42000-53000 |
21-27 |
46000-57000 |
23-28 |
550 |
2427 |
50000-63000 |
21-26 |
||
600 |
2892 |
61000-72000 |
21-25 |
||
700 |
3968 |
75000-90000 |
19-23 |
If you have no idea to choose the graphite electrode UHP HP RP nipples for your arc furnace or ladle furnace, then please refer to the data in the two diagrams above, especially electrical resistivity and suggested operation current of the graphite electrode.