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Item | Unit | High-power | Super high-power | Ultra high-power | |||||
φ200-400 | φ450-500 | φ350-400 | φ450-500 | φ300-400 | φ450-500 | ||||
Specific Resistance(≤) | E | μ Ω·m | 7 | 7.5 | 6.5 | 7 | 6.2 | 6.5 | |
N | 6.5 | 6.5 | 6 | 6 | 5.5 | 5.5 | |||
Bending Strength (≥) | E | MPa | 10.5 | 9.8 | 10.5 | 10 | 10.5 | 10 | |
N | 15 | 15 | 16 | 16 | 16 | 16 | |||
Elastic Modulus (≤) | E | GPa | 12 | 12 | 13 | 13 | 14 | 14 | |
N | 16 | 16 | 17 | 17 | 18 | 18 | |||
Bulk Density (≥) | E | g/cm3 | 1.6 | 1.6 | 1.62 | 1.62 | 1.65 | 1.64 | |
N | 1.7 | 1.7 | 1.71 | 1.71 | 1.72 | 1.72 | |||
C.T.E.(≤) | E | 10-6/°C | 2.4 | 2.4 | 2.2 | 2.2 | 1.5 | 1.5 | |
(100-600°C) | |||||||||
N | 2.2 | 2.2 | 1.8 | 1.8 | 1.4 | 1.4 | |||
Ash(≤) | % | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | ||
Item | Unit | Regular-power | Impregnated | ||||||
φ75- | φ150- | φ250- | φ350- | φ75- | φ250- | φ400- | |||
130 | 225 | 300 | 500 | 200 | 350 | 500 | |||
Specific Resistance (≤) | E | μ Ω·m | 8.5 | 9 | 9 | 9 | 8 | 8 | 8 |
N | 8 | 8 | 8 | 8 | 7.5 | 7.5 | 7.5 | ||
Bending Strength (≥) | E | MPa | 9.8 | 9.8 | 7.8 | 6.4 | 10 | 9 | 8 |
N | 13 | 13 | 13 | 13 | 15 | 15 | 15 | ||
Elastic Modulus (≤) | E | GPa | 9.3 | 9.3 | 9.3 | 9.3 | 12 | 12 | 12 |
N | 14 | 14 | 14 | 14 | 14 | 14 | 14 | ||
Bulk Density (≥) | E | g/cm3 | 1.58 | 1.52 | 1.52 | 1.52 | 1.58 | 1.58 | 1.58 |
N | 1.63 | 1.63 | 1.68 | 1.68 | 1.68 | 1.68 | 1.68 | ||
C.T.E.(≤) | E | 10-6/°C | 2.9 | 2.9 | 2.9 | 2.9 | 2.7 | 2.7 | 2.7 |
(100-600°C) | |||||||||
N | 2.7 | 2.7 | 2.8 | 2.8 | 2.5 | 2.5 | 2.5 | ||
Ash(≤) | % | 0.5 | 0.5 | 0.5 | 0.5 | 0.3 | 0.3 | 0.3 |
Graphite electrode