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250 impregnated graphite electrode



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Project Unit Nominal diameter mm
75-200 250-400 450-600
Superior Level 1 Superior Level 1 Superior Level 1
Resistivity ≤ Electrodes Ooh. 7.0 8.0 7.0 8.0 7.5 8.5
Connector 6.5 6.5 6.5
Bend strength ≥ Electrodes MPa 10.0 9.0 8.0
Connector 13.0 13.0 13.0
Modulus of elasticity ≤ Electrodes GPa 12.0 12.0 12.0
Connector 14.0 14.0 14.0
Bulk density ≥ Electrodes g/cm3 1.65 1.65 1.65
Connector 1.72 1.72 1.72
Coefficient of thermal expansion ≤ (100 ℃-600 ℃) Electrodes 10-6/℃ 2.6 2.6 2.6
Connector 2.3 2.3 2.3
Ash ≤ % 0.3 0.3 0.3

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