graphite electrode (RPI)

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 electrode(RPI) as follows: Technical Properties: Item Unit Nominal Diameter 200-350 400-500 550-650 Electric resistivity μΩm ≤9 ≤9 ≤10 Bending strength Mpa ≥9.0 ≥8.0 ≥7.0 Elastic modulus Gpa ≤11 ≤11 ≤11 Ash % ≤0.3 ≤0.3 ≤0.3 Bulk density g/cm3 ≥1.65 ≥1.64 ≥1.63 CTE 10-6 ≤2.7 ≤2.7 ≤2.7 The Current Carrying Capacity: Nominal DiameterCross sectionalareaYB/T4088-2000Inner Quality Standard(EAF)Current carrying capacityCurrent densityCurrent carrying capacityCurrent densityinchmmcm2AA/ cm2AA/ cm282003145000-900018-256900-900022-3092253976500-1000018-258000-1100020-27102504958000-1300018-2510000-1300020-271230071613000-1740017-2413600-1800018-251435097317400-2400017-2417500-2450018-2516400127521000-3100016-2421000-3100017-2418450162225000-4000015-2426000-3900016-2420500200230000-4800015-2432000-4800016-24225502427----36000-5500015-23246002892----44000-6100015-23257003846----57000-9000015-23267804775----70000-10000015-23278005024----65000-11000013-22288505278----75000-12000013-22299006644----86000-14000013-223011009498----120000-20000013-22