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electrodes

Graphite electrodes (machined and unmachined):

  • RP grade 150-500 mm
  • HP grade 150-500 mm
  • UHP grade
  • Ferro alloys (FeMo)
item unit RP Diameter (mm) HP Diameter (mm) UHP Diameter (mm)
75-130 150-230 250-350 400-500 150-350 400-500 200-350 400-500
Bulk
Density
Electrode
Nipple
g/cm3
min
≥1.58
≥1.72
≥1.58
≥1.72
≥1.58
≥1.72
≥1.58
≥1.72
≥1.65
≥1.75
≥1.65
≥1.75
≥1.65
≥1.78
≥1.65
≥1.78
Electric
Resistivity
Electrode
Nipple
µ?.m
max
≤7.5
≤5.0
≤7.5
≤5.0
≤7.5
≤5.0
≤7.5
≤5.0
≤6.5
≤4.0
≤6.5
≤4.0
≤6.0
≤4.0
≤6.0
≤4.0
Bending
Strength
Electrode
Nipple

Mpa
min

≥16.0
≥18.0
≥16.0
≥18.0
≥16.0
≥18.0
≥16.0
≥18.0
≥12.0
≥16.0
≥12.0
≥16.0
≥14.0
≥18.0

≥14.0
≥20.0

Young's
Modulus
Electrode
Nipple
Gpa
max
≤8.0
≤12.0
≤8.0
≤12.0
≤8.0
≤12.0
≤8.0
≤12.0
≤10.0
≤14.0
≤10.0
≤14.0
≤12.0
≤14.0
≤12.0
≤18.0
Coefficient
Thermal expansion
Electrode
Nipple
10-6 K-1 ≤2.9
≤2.9
≤2.9
≤2.9
≤2.9
≤2.9
≤2.9
≤2.9
≤2.2
≤2.2
≤2.2
≤2.2
≤1.4
≤1.2
≤1.4
≤1.2
Ash % ≤0.25
≤0.25 ≤0.25
≤0.25
≤0.25
≤0.25
≤0.2 ≤0.2

Graphite electrodes are used for arc steel melting, refining, ferroalloy, ore furnaces and other electrical thermal equipment. They have wide application in metallurgical industry.

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Venford Holdings Limited
Succes Comm. Bldg 6B, 251, Hennessy Road
Hong Kong, China

 

tel.: 86 13301917087
tel.: 852 83433634
e-mail: venford@asia.com