TYPICAL CHARACTERISTICS
| Unit | Graphite Electrodes | Graphite Niples | |
| Bulk density DIN 51 918 | [g/cm3] | 1,66 – 1,75 | 1,75 – 1,86 |
| Electrical resistivity* DIN 51 911 | [μΩ-m] | 4,6 – 5,8 | 3,0 – 4,5 |
| Porosity DIN 51 918 | [%] | 14 – 22 | 8 – 15 |
| Thermal conductivity according to DIN 51 908 (20º C) | [W/ºK·m] | 160 – 230 | 220 – 300 |
| Flexural strength* DIN 51 902 | [MN/m2] | 9 – 14 | 20 – 30 |
| Young’s Modulus* DIN 51 934/51 915 | [GN/m2] | 9 – 15 | 19 – 28 |
| CTE* (20 – 120º C) DIN 51 909 | [10-6/K] | 0,4 – 1,0 | 0,2 – 0,9 |
| *Measured values of anisotropic properties in longitudinal direction. | Diameter, length and tolerances according to IEC 60239/DIN 60239 or NEMA CGI – 2001 in special cases JIS R 7201 to 2001 | ||
NORMALIZED DIMENSIONS AND AVERAGE WEIGHTS
| Ø Nominal | Dimensions | Nominal Length | Electrode Weight | Niple Weight | |||
| Ø Typical | Tolerances | ||||||
| mm | mm | Max. mm | Min. mm | mm | kg | Normal kg | Long kg |
| 400 | 408 | 409 | 403 | 1800 | 390 | 16 | 18 |
| 2100 | 465 | ||||||
| 2400 | 531 | ||||||
| 450 | 459 | 460 | 154 | 1800 | 500 | 19 | 22 |
| 2100 | 580 | ||||||
| 2400 | 663 | ||||||
| 500 | 510 | 511 | 505 | 2100 | 615 | 28 | 34 |
| 2400 | 707 | ||||||
| 2700 | 815 | ||||||
| 550 | 560 | 562 | 556 | 2100 | 850 | 35 | 42 |
| 2400 | 965 | ||||||
| 2700 | 1086 | ||||||
| 600 | 612 | 613 | 607 | 2100 | 1000 | 40 | 50 |
| 2400 | 2400 | ||||||
| 2700 | 2700 | ||||||
| Weights shown are averages and vary depending on the tolerances of the diameter and length. | |||||||
