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300-500mm RP graphite electrode
  • 300-500mm RP graphite electrode
  • 300-500mm RP graphite electrode
  • 300-500mm RP graphite electrode
  • 300-500mm RP graphite electrode
  • 300-500mm RP graphite electrode
  • 300-500mm RP graphite electrode

300-500mm RP graphite electrode

Electric resistivity :  7.5-8.6

Bending strength:   >=7.5

Elastic Modulus:    <=9

Bulk density:       1.54-1.62

Ash:              <=0.3

CTE:              2.20-2.60


Regular power graphite electrode is a graphite electrode with allowable current density lower than 17A/cm2. RP graphite electrode is mainly used in the ordinary power electric furnace for steelmaking, silicon smelting and yellow phosphorus refining etc.


Physical and Chemical Index of  Hign Power Graphite Electrode:
Item UnitHP
300~500550~700
Electric Resistivity ElectrodeuΩ.m5.5~6.85.5~7.0
Nipple4.0~5.5
Bending StrengthElectrodeMPa≥10.0≥8.5
Nipple≥18.0
Modulus of ElasticityElectrodeGPa≤13.0
Nipple≤15.0
Bulk DensityElectrodeg/cm31.62~1.70
Nipple1.72~1.80
Ash ContentElectrode%≤0.3
Nipple
The Coefficient of Thermal Expansion(CTE)Electrode10-6/℃1.80~2.20
Nipple1.50~1.80





High Power Graphite Electrode Current Carrying Capacity
Norminal DiameterHP
Current Carrying CapacityCurrent Density
inchmmAA/cm2
1230013000~1740017~24
1435017400~2400017~24
1640021000~3100016~24
1845025000~4000015~24
2050030000~4800015~24
2255034000~5300014~22
2460038000~5800013~21
2870045000~7200012~19
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



Shandong Rongfu new material technology Co,Ltd.

Add.: Shouguang, Shandong, China.

Tel.: +86 536 5222 183

E-mail: info@rongfuindustry.com

Fax: +86 536 5222 183