300-500mm HP graphite electrode,HP Graphite Electrode
,,,
Electric resistivity :5.5-6.8
Bending strength: >=10.0
Elastic Modulus:<=13
Bulk density:1.62-1.70
Ash:<=0.3
CTE:1.80-2.20
High power graphite electrodeis a graphite electrode with allowable current density between 18-25A/cm2.HP graphite electrodemainly used in high power steelmaking electric arc furnace.
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PhysicalandChemicalIndexofHignPowerGraphiteElectrode: |
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|
Item |
Unit |
HP |
||
|
300～500 |
550～700 |
|||
|
ElectricResistivity |
Electrode |
uΩ.m |
||
|
Nipple |
||||
|
BendingStrength |
Electrode |
MPa |
≥10.0 |
≥8.5 |
|
Nipple |
≥18.0 |
|||
|
ModulusofElasticity |
Electrode |
GPa |
≤13.0 |
|
|
Nipple |
≤15.0 |
|||
|
BulkDensity |
Electrode |
g/cm3 |
||
|
Nipple |
||||
|
AshContent |
Electrode |
% |
≤0.3 |
|
|
Nipple |
||||
|
TheCoefficientofThermalExpansion(CTE) |
Electrode |
10-6/℃ |
||
|
Nipple |
||||
|
HighPowerGraphiteElectrodeCurrentCarryingCapacity |
|||
|
NorminalDiameter |
HP |
||
|
CurrentCarryingCapacity |
CurrentDensity |
||
|
inch |
mm |
A |
A/cm2 |
|
12 |
300 |
13000～17400 |
17～24 |
|
14 |
350 |
17400～24000 |
17～24 |
|
16 |
400 |
21000～31000 |
16～24 |
|
18 |
450 |
25000～40000 |
15～24 |
|
20 |
500 |
30000～48000 |
15～24 |
|
22 |
550 |
34000～53000 |
14～22 |
|
24 |
600 |
38000～58000 |
13～21 |
|
28 |
700 |
45000～72000 |
12～19 |
|
32 |
800 |
／ |
／ |
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