China UHP Grade Graphite Electrodes in Eaf/Lf for Steel-Making, Find details about China Graphite Electrode, Graphite Electrodes Np HP Shp from UHP Grade Graphite Electrodes in Eaf/Lf for Steel-Making
Item | Unit | Nominal Diameter | |||||||
UHP | HP | RP | |||||||
Φ300-400 | ≥Φ450 | Φ250-400 | ≥Φ450 | Φ250-400 | Φ450-600 | ||||
Electric Resistivity | electrode | μΩ·m | ≤5.0 | ≤5.5 | ≤6.0 | ≤6.5 | ≤8.5 | ≤9.0 | |
Nipple | ≤4.0 | ≤4.5 | ≤5.5 | ||||||
Transverse Strength | electrode | MPa | ≥15.0 | ≥10.5 | ≥8.0 | ≥7.0 | |||
Nipple | ≥24.0 | ≥20.0 | ≥16.0 | ||||||
Young's Modulus | electrode | GPa | ≤14.0 | ≤12.0 | ≤9.3 | ||||
Nipple | ≤18.0 | ≤16.0 | ≤14.0 | ||||||
Bulk Density | electrode | g/cm3 | ≥1.68 | ≥1.65 | ≥1.54 | ||||
Nipple | ≥1.76 | ≥1.74 | ≥1.70 | ||||||
Coefficient of thermal expansion | electrode | 10-6/ºC | ≤1.5 | ≤2.0 | ≤2.5 | ||||
Nipple | ≤1.2 | ≤1.6 | ≤2.0 | ||||||
Ash | % | ≤0.2 | ≤0.2 | ≤0.2 |