| Item | Unit |
Common Carbon Block |
Semi-graphitic Cathode Block | ||||
| GS-1 | GS-3 | GS-5 | GS-10 | ||||
| Ash | % | ≤8 | ≤7 | ≤5 | ≤4 | ≤2 | |
| Electrical Resistivity At Normal Temperature |
μΩm | ≤55 | ≤39 | ≤35 | ≤30 | ≤21 | |
| Sodium (Na Expansion) | % | ≤1.5 | ≤1.0 | ≤0.6 | ≤0.5 | ≤0.5 | |
| Real Density | g/cm3 | ≥1.88 | ≥1.91 | ≥1.95 | ≥2.01 | ≥2.08 | |
| Bulk Density | g/cm3 | ≥1.54 | ≥1.56 | ≥1.57 | ≥1.57 | ≥1.59 | |
| Compressive Strength | MPa | ≥32 | ≥32 | ≥24 | ≥24 | ≥26 | |
| Flexual Strength | MPa | _ | ≥10 | ≥7.0 | ≥7.0 | ≥7.5 | |
| Thermal Conductivity | 30℃ | W/(m·K) | _ | - | ≥12 | ≥15 | ≥20 |
| 600℃ | _ | - | ≥14 | ≥20 | ≥30 | ||
| Linear Thermal Expansion | ×10-6/℃ （300℃） |
_ | ≤4.2 | ≤4.0 | ≤4 | ≤4 | |
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