Graphite Electrodes For Steel Production

1.Product presentation  Our graphite electrode is made for the domestic first petroleum coke and hian quality needle coke. It contains more than 30 kinds of diameter specifications covering from ø200mm to ø800mm. Physical and chemical index Item Unit RP HP UHP Φ300-500 Φ550-800 Φ300-500 Φ550-700 Φ300-500 Φ550-600 Φ700-800 Electric Resistivity Electrode μΩM 7.5-8.6 7.5-8.8 5.5-6.8 5.5-7.0 4.6-6.2 4.5-6.0 4.5-5.8 Nipple 4.5-6.0 4.0-5.5 3.5-5.0 3.4-4.5 3.3-4.3 Bending strength Electrode MPa ≥7.5 ≥6.5 ≥10.0 ≥8.5 ≥10.5 ≥10.0 ≥10.0 Nipple ≥16.0 ≥18.0 ≥20.0 ≥22.0 ≥23.0 Elastic modulus Electrode Gpa ≤9.0 ≤13.0 ≤14.0 ≤14.0 ≤14.0 Nipple ≤13.0 ≤15.0 ≤20.0 ≤22.0 ≤22.0 Bulk density Electrode g/cm³ 1.54-1.62 1.62-1.70 1.66-1.73 1.68-1.74 Nipple 1.70-1.78 1.72-1.80 1.75-1.82 1.78-1.85 Ash Electrode % ≤0.3 Nipple CTE(100-600ºC) Electrode 10-6/ ºC 2.20-2.60 1.80-2.20 1.20-1.50 1.10-1.50 Nipple 1.50-1.90 1.50-1.80 1.10-1.40 1.00-1.30