Graphite electrode RP HP dia 225-400mm

Graphite electrode is made of high quality petroleum coke and pitch. This product goes through the process of calcining, matching, blending, modeling, baking, graphitization and machining and etc before it rolls off the line. The nipple of the electrode takes the technology of three-time impregnating and four-time baking to produce. ItemsUnitNominal DiametermmRPHPUHP100 600300 400450 500300 400450 500Electrical Resistivity ≤ElectrodeμΩm8.57.57.56.56.5Nipple8665.55.5Break Resistance Intensity ≥ElectrodeMpa81210.51311Nipple1515151717Elastic Modulus ≤Electrodepa911111212Nipple1314141616Bulk Density ≥Electrodeg/cm31.561.621.621.661.65Nipple1.71.721.721.741.72Thermal Expansion Coeffcient (100°C 600°C)≤Electrode10-6/°C2.92.42.41.51.5Nipple2.82.22.21.41.4Ash Content ≤0.50.50.30.30.3