550-700 Mm Hp Graphite Electrode

We are a highly reputed firm, we are involved in manufacturing and exporting of 550-700 mm HP Graphite Electrode in Shouguang, Shandong, China.

Electric resistivity : A 5.5-7.0
Bending strength: >=8.5
Elastic Modulus:A A <=13
Bulk density:A 1.62-1.70
Ash:A <=0.3
CTE:A 1.80-2.20
High power graphite electrode is a graphite electrode with allowable current density between 18-25A/cm2.A HP graphite electrode mainly used in high power steelmaking electric arc furnace.
PhysicalA andA ChemicalA IndexA ofA A HignA PowerA GraphiteA Electrode:
ItemA UnitHP
300i 500550i 700
ElectricA ResistivityA ElectrodeuIC.m5.5i 6.85.5i 7.0
Nipple4.0i 5.5
BendingA StrengthElectrodeMPaa Y10.0a Y8.5
Nipplea Y18.0
ModulusA ofA ElasticityElectrodeGPaa 13.0
Nipplea 15.0
BulkA DensityElectrodeg/cm31.62i 1.70
Nipple1.72i 1.80
AshA ContentElectrode%a 0.3
Nipple
TheA CoefficientA ofA ThermalA Expansion(CTE)Electrode10-6/a 1.80i 2.20
Nipple1.50i 1.80

HighA PowerA GraphiteA ElectrodeA CurrentA CarryingA Capacity
NorminalA DiameterHP
CurrentA CarryingA CapacityCurrentA Density
inchmmAA/cm2
1230013000i 1740017i 24
1435017400i 2400017i 24
1640021000i 3100016i 24
1845025000i 4000015i 24
2050030000i 4800015i 24
2255034000i 5300014i 22
2460038000i 5800013i 21
2870045000i 7200012i 19
32800i i

ToleranceA ofA GraphiteA ElectrodeA DiameterA andA Lengthi mm)A
NominalA DiameterActuralA diameterLength
inmmmaxminBlackA surfaceA min
123003073022991800/2000
143503583523491800/2000/2200
164004094034001800/2000/2200
184504604544511800/2000/2200
205005115055022000/2200/2400
225505625565532000/2200/2400/2700
246006136076042200/2400/2700/3000
287007147107072200/2400/2700/3000
298008168128092200/2400/2700/3000

PermissibleA DeviationA ofA GraphiteA ElectrodeA LengthA (mm)
NominalA LengthStandardA DeviationShortA LengthA Deviation
maxminmaxmin
1800+100-100-100-275
2000+100-100-100-275
2200+100-100-100-275
2400+100-100-100-275
2700+200-150-150-275
3000+200-150-150-300