HP Graphitelektroden

HP Graphite Electrode Graphite electrode is used as conductive material in smelting the steel, yellow phosphorus, brown alumina, silicon, etc. Our company can produce and process all sizes of graphite electrode and other special structure of graphite products according to the customer’s per requirement. The detail information of our product graphite electrodes as follows: HP Graphite Electrode 1.grade: RP(ISO9001-2000) 2.D:150-600mm L:1700-2400mm 2.nipple: 3TPI,4TPI 3.material:petrol coke Technical Indicator Item Unit Norminal Diameter UHP HP RP Resistance Electrode μΩ·m ≤5.5 ≤6.5 ≤8.5 Nipple ≤4.5 ≤5.5 ≤6.5 Bending Strength Electrode MPa ≥11.0 ≥10.0 ≥8.0 Nipple ≥20.0 ≥16.0 ≥15.0 Elastic Modulus Electrode GPa ≤14.0 ≤12.0 ≤9.3 Nipple ≤18.0 ≤16.0 ≤14.0 Bulk Density Electrode g/cm3 ≥1.67 ≥1.62 ≥1.53 Nipple ≥1.75 ≥1.73 ≥1.69 CTE. Electrode 10-6/°C ≤1.5 ≤2.4 ≤2.9 Nipple ≤1.4 ≤2.2 ≤2.8 Ash % ≤0.3 ≤0.3 ≤0.5 Product current carrying capacity table Norminal Diameter RP HP UHP mm Current load A Current Density A/cm2 Current load A Current Density A/cm2 200 5000-6900 15-21 5500-9000 18-25 250 7000-10000 14-20 8000-13000 18-25 9200-15100 21-30 300 10000-13000 14-18 13000-17400 17-24 13000-22000 20-30 350 13500-18000 14-18 17400-24000 17-24 20000-30000 20-30 400 18000-23500 14-18 21000-32000 16-24 25000-40000 19-30 450 22000-27000 13-17 25000-40000 15-24 32000-45000 19-27 500 25000-32000 13-16 30000-48000 15-24 38000-55000 18-27 550 32000-40000 13-16 37000-57000 15-23 48000-60000 18-24 600 38000-47000 13-16 44000-67000 15-23 52000-72000 18-24