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Raw materials are mixed and then molded. Heat treatment is then applied in the baking and graphitization process to form the finished product.
Physical & Chemical Properties of RP Graphite Electrodes
Items |
Classification |
Unit |
Nominal Diameter (mm) |
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75-130 |
150-225 |
250-300 |
350-450 |
500-800 |
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Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
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Resistivity |
Electrode |
μΩm |
8.5 |
10.0 |
9.0 |
10.5 |
9.0 |
10.5 |
9.0 |
10.5 |
9.0 |
10.5 |
Nipple |
8.0 |
8.0 |
8.0 |
8.0 |
8.0 |
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Bending Strength |
Electrode |
Mpa |
10.0 |
10.0 |
8.0 |
7.0 |
6.5 |
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Nipple |
15.0 |
15.0 |
15.0 |
15.0 |
15.0 |
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Young’s Modulus |
Electrode |
Gpa |
9.3 |
9.3 |
9.3 |
9.3 |
9.3 |
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Nipple |
14.0 |
14.0 |
14.0 |
14.0 |
14.0 |
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Bulk Density |
Electrode |
g/cm3 |
1.58 |
1.53 |
1.53 |
1.53 |
1.52 |
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Nipple |
1.70 |
1.70 |
1.70 |
1.70 |
1.70 |
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CTE (100℃-600℃) |
Electrode |
×10-6/℃ |
2.9 |
2.9 |
2.9 |
2.9 |
2.9 |
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Nipple |
2.7 |
2.7 |
2.8 |
2.8 |
2.8 |
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Ash Content |
% |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
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Note: Ash Content is only for reference.
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