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Ultra High Power Graphite Electrode (UHP)

Ultra high power graphite electrode uses imported needle coke ,petroleum coke as main material and asphalt as binder. If the diameter is ≤400mm, the resistance is ≤5.8. If the diameter is ≥450mm, the resistance is ≤5.8. And the current load is between17A/Cm3 -30A/Cm3.

Detailed Introduction
Technical indexes of ultra high power graphite electrode:
Item Unit Ultra High Power UHP
≤φ400 ≥φ450
Resistivity Electrode μΩ·m 4.5-5.8 4.5-5.8
Nipple 3.4-4.0
Flexural Strength Electrode Mpa 10-15 10-15
Nipple 21-30
Modulus of elasticity Electrode
Gpa 9-12
Nipple 15-20
Ash Content Electrode % 0.2
Nipple
Bulk Density Electrode G/cm3 1.66-1.73
Nipple 1.77-1.84
Coefficient of Thermal Expansion Electrode 10-6/℃ 1.1-1.5
Nipple 0.9-1.2


Ultra high power graphite electrode suggested current load meter:
Nominal diameter
Permissible current load
mm Ultra high power graphite electrode UHP
A A/Cm3
200
250
300 15000-22000 20-30
350 20000-30000 20-30
400 25000-40000 19-30
450 32000-45000 19-27
500 38000-55000 18-27
550 45000-65000 18-27
600 52000-75000 18-26
700 68000-950000 17-24


Graphite electrode specifications and allowable deviations:

Nominal diameter Actual diameter Actual length
mm in Maximum Minimum The smallest part of the black skin length Length allowable deviation Short length
200 8 205 200 197



±100




-275
250 10 256 251 248 1600
300 12 307 302 299 1800
350 14 357 352 349
400 16 409 403 400
450 18 460 454 451 1800
500 20 511 505 502 2100
550 22 562 556 553 2400
600 24 613 607 604 2700
700 28 714 708 705


快8-快8中奖计算器