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300-500mm UHP graphite electrode
  • 300-500mm UHP graphite electrode
  • 300-500mm UHP graphite electrode
  • 300-500mm UHP graphite electrode
  • 300-500mm UHP graphite electrode
  • 300-500mm UHP graphite electrode
  • 300-500mm UHP graphite electrode

300-500mm UHP graphite electrode

Electric resistivity :  4.6-6.2

Bending strength:   >=10.5

Elastic Modulus:    <=14

Bulk density:       1.66-1.73

Ash:              <=0.3

CTE:              1.20-1.50


Ultra high power graphite electrode is a graphite electrode with allowable current density greater than 25A/cm2 . UHP graphite electrode mainly used in ultra-high power steelmaking electric arc furnace.


Ultra High Power Graphite Electrode Current Carrying CapacityUltra High Power Graphite Electrode Current Carrying Capacity

Physical and Chemical Index of Ultra high Power  Graphite Electrode
Item UnitUHP
300~500550~600700~800
Electric Resistivity ElectrodeuΩ.m4.6~6.24.5~6.04.5~5.8
Nipple3.5~5.03.4~4.53.3~4.3
Bending StrengthElectrodeMPa≥10.5≥10.0≥10.0
Nipple≥20.0≥22.0≥23.0
Modulus of ElasticityElectrodeGPa≤14.0≤14.0≤14.0
Nipple≤20.0≤22.0≤22.0
Bulk DensityElectrodeG/cm31.66~1.731.68~1.74
Nipple1.75~1.821.78~1.85
Ash ContentElectrode%≤0.3
Nipple
The Coefficient of Thermal Expansion(CTE)Electrode10-6/℃1.20~1.501.10~1.50
Nipple1.10~1.401.00~1.30





UHP Graphite Electrode Current Carrying Capacity
Norminal DiameterUHP
Current Carrying CapacityCurrent Density
inchmmAA/cm2
1230015000~2200020~30
1435020000~3000020~30
1640025000~4000019~30
1845032000~4500019~27
2050038000~5500018~27
2255045000~6500018~27
2460050000~7500018~26
2870070000~12000018~25
32800




Tolerance of Graphite Electrode Diameter and Length(mm) 
Nominal DiameterActural diameterLength
inmmmaxminBlack surface 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


Permissible Deviation of Graphite Electrode Length (mm)
Nominal LengthStandard DeviationShort Length 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




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Tel.: +86 536 5222 183

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