Wholesale graphite electrode 200mm 300mm 400mm RP Hp UHP graphite electrode for steel making
|
Nominal Diameter(mm) |
Resistivity |
Density |
Flexure Strength |
Elastic Modulus |
Ash Content |
CTE |
Current Load |
Current Density |
|
300 |
6 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
13000-17400 |
17-24 |
|
350 |
6 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
17400-24000 |
17-24 |
|
400 |
6 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
21000-31000 |
16-24 |
|
450 |
6 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
25000-40000 |
15-24 |
|
500 |
6 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
30000-48000 |
15-24 |
|
550 |
6 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
34000-53000 |
14-22 |
|
600 |
6 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
38000-58000 |
13-21 |
|
650 |
6.2 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
41000-65000 |
12-20 |
|
700 |
6.2 |
1.67-1.73 |
12 |
10.5 |
0.3 |
2 |
45000-72000 |
12-19 |
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Graphitized electrodes represent a critical advancement in electrode technology, defined by their transformation through high-temperature graphitization-a process that aligns carbon atoms into crystalline structures, enhancing electrical and thermal performance. Unlike raw carbon electrodes, which retain amorphous carbon structures, graphitized electrodes undergo thermal treatment at 2,500–3,000°C in inert or reducing atmospheres. This process eliminates structural defects, reducing electrical resistance and improving electron mobility.
The significance of graphitization lies in its impact on industrial applications, particularly in electric arc furnaces (EAFs) for steelmaking. Graphitized electrodes exhibit superior thermal stability, resisting oxidation and thermal shock at extreme temperatures (up to 3,000°C). Their low resistivity minimizes energy loss during operation, directly improving furnace efficiency. For instance, in EAFs producing high-grade steel, graphitized electrodes maintain consistent conductivity, reducing downtime caused by electrode degradation.
Moreover, graphitization enhances mechanical strength. The aligned carbon structure minimizes brittleness under thermal cycling, extending electrode lifespan. Modern graphitization techniques, such as continuous graphitization furnaces, have optimized this process, balancing cost and performance. As global demand for energy-efficient steel production grows, graphitized electrodes are poised to remain indispensable, driving innovation in materials science for high-temperature industrial processes.
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