HP Graphite Electrode
Raw materials are mixed and then molded. Heat treatment is then applied in the baking and graphitization process to form the finished product.
- Product Details
Physical & Chemical Properties of HP Graphite Electrodes
Items |
Classification |
Unit |
Nominal Diameter (mm) |
||
HP Graphite Electrode |
|||||
200-400 |
450-500 |
550-600 |
|||
Resistivity |
Electrode |
μΩm ≤ |
7.0 |
7.5 |
7.5 |
Nipple |
6.3 |
6.3 |
6.3 |
||
Bending Strength |
Electrode |
Mpa ≥ |
10.5 |
10.0 |
8.5 |
Nipple |
17.0 |
17.0 |
17.0 |
||
Young’s Modulus |
Electrode |
Gpa ≤ |
14.0 |
14.0 |
14.0 |
Nipple |
16.0 |
16.0 |
16.0 |
||
Bulk Density |
Electrode |
g/cm3 ≥ |
1.60 |
1.60 |
1.60 |
Nipple |
1.72 |
1.72 |
1.72 |
||
CTE(100℃-600℃) |
Electrode |
×10-6/℃ ≤ |
2.4 |
2.4 |
2.4 |
Nipple |
2.2 |
2.2 |
2.2 |
||
Ash Content |
Electrode |
% ≤ |
0.5 |
0.5 |
0.5 |
Nipple |
Note: Ash Content is only for reference.
Recommended current load of HP Graphite Electrodes
Grade |
Nominal Dia. |
Allowable current A |
Current density A/cm2 |
HP electrode |
200mm |
5500~9000 |
18~25 |
250mm |
8000~13000 |
18~25 |
|
300mm |
13000~17400 |
17~24 |
|
350mm |
17400~24000 |
17~24 |
|
400mm |
21000~31000 |
16~24 |
|
450mm |
25000~40000 |
15~24 |
|
500mm |
30000~48000 |
15~24 |
|
550mm |
34000~53000 |
14~22 |
|
600mm |
38000~58000 |
13~21 |
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