Graphite Electrode
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Items |
Unit |
Nominal Diameter(mm) |
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250-400 |
450 |
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Specific Resistance |
Electrode |
μΩ.m |
6.5 |
7.0 |
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Bending Strength |
Electrode |
Mpa |
10.0 |
10.0 |
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Elastic Modulus |
Electrode |
Gpa |
12.0 |
12.0 |
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Bulk Density |
Electrode |
g/cm3 |
1.64 |
1.62 |
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CTE(100-600)0C |
Electrode |
10-6/0C |
2.7 |
2.7 |
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Ash(not over) |
Electrode |
% |
0.3 |
0.3 |
Suggested Current Carrying Capacities of graphite electrode:
| Diameter | Suggested Current-Carrying Capacities ( A ) | ||
| mm | Inch | A | A/cm2 |
| 250 | 10 | 8000-13000 | 18-25 |
| 300 | 12 | 13000-17400 | 17-24 |
| 350 | 14 | 17400-24000 | 17-24 |
| 400 | 16 | 21000-31000 | 16-24 |
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450 |
18 |
25000-40000 |
15-24 |
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Size of graphite electrode:
| Diameter | Length | |||||
| Nominal | Actual(mm) | Nominal | Tolerance | |||
| mm | inch | Low Spot | Min | Max | mm | mm |
| 250 | 10 | 248 | 251 | 256 | 1600 1800 |
Max+100 Min-100 |
| 300 | 12 | 299 | 302 | 307 | ||
| 350 | 14 | 349 | 352 | 357 | ||
| 400 | 16 | 400 | 403 | 409 |
1600,1800, 2000,2200 |
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| 450 | 18 | 451 | 454 | 460 | ||
About product
Graphite Electrode is mainly usde for steel-making in electric arc furnace, Ore-smelting Electric furnace and electric resistance furnace. Graphite electrode conduct electric current into the furnace. Electric current produces arc in the smelting
district in the electric furnace, when the temperature increase to about 2000 degree centigrade, raw material begin smelting and products manufactured.A series of graphite electrode is applicable to the common furnace and high power furnace with high pressure and short arc.