graphite electrode
Specification of UHP graphite electrodes for electric furnace(EAF)
Items |
Unit |
Nominal Diameter(mm) |
||
350-400 |
450-600 |
|||
Specific Resistance |
Electrode |
μΩ.m |
5.5 |
5.8 |
Bending Strength |
Electrode |
Mpa |
10.5 |
10.5 |
Elastic Modulus |
Electrode |
Gpa |
14.0 |
14.0 |
Bulk Density |
Electrode |
g/cm3 |
1.67 |
1.67 |
CTE(100-600)0C |
Electrode |
10-6/0C |
1.5 |
1.5 |
Ash(not over) |
Electrode |
% |
0.3 |
0.3 |
Regular Power (RP) |
High Power (HP) |
Ultral High Power (UHP) |
Graphite Electrodes |
Graphite Electrodes |
Graphite Electrodes |
Bulk Density |
≥ 1.55g/cc |
≥ 1.65g/cc |
Specific Resistivity |
≤8.0µΩ.m |
≤ 6.8µΩ.m |
Flexural Strength |
≥ 10.0MPa |
≥ 11.0MPa |
Elastic Modulus |
≤10.0GPa |
≤12.0GPa |
Co-efficient of Thermal Expansion |
≤ 2.4 x 10-6/°C |
≤ 2.2 x 10-6/°C |
Ash |
≤ 0.5% |
≤ 0.3% |
Nipples |
Nipples |
Nipples |
Bulk Density |
≥ 1.65g/cc |
≥ 1.72g/cc |
Specific Resistivity |
≤ 6.5µΩ.m |
≤ 5.5µΩ.m |
Flexural Strength |
≥ 12.0MPa |
≥ 14.0MPa |
Elastic Modulus |
≤12.0GPa |
≤16.0GPa |
Co-efficient of Thermal Expansion |
≤ 2.0 x 10-6/°C |
≤ 1.8 x 10-6/°C |
Ash |
≤ 0.5% |
≤ 0.3% |
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