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It is used in ultra high power smelting furnace and high-load ladle furnace.
Allowable Current-Carrying Capacities
Nominal |
UHP Graphite Electrodes |
||
mm |
inch |
Current-Carrying Capacity（A） |
Current Density （A/㎡） |
300 |
12 |
15000~22220 |
20~32 |
350 |
14 |
20000~30300 |
20~32 |
400 |
16 |
25000~40400 |
19~32 |
450 |
18 |
32000~45450 |
19~29 |
500 |
20 |
38000~55550 |
18~29 |
550 |
22 |
42000~64640 |
17~28 |
600 |
24 |
50000~76760 |
17~27 |
Physical &Chemical Properties Of Elecrtode And Nipple
UHP Graphite Electrode |
Unit |
300-400 |
450-550 |
600 |
|||
FC |
YB |
FC |
YB |
FC |
|||
Specific resistance |
Electrode |
μΩ·m |
≤6.0 |
≤6.2 |
≤6.5 |
≤6.5 |
≤5.8 |
Nipple |
≤5.0 |
≤5.5 |
≤5.5 |
≤5.5 |
≤4.3 |
||
Transverse stength |
Electrode |
ΜРa |
≥11.0 |
≥10.5 |
≥10.5 |
≥10.0 |
≥10.0 |
Nipple |
≥17.0 |
≥16.0 |
≥17.0 |
≥16.0 |
≥23.0 |
||
Elastic modulus |
Electrode |
GРa |
≤14.0 |
≤14.0 |
≤14.0 |
≤14.0 |
≤14.0 |
Nipple |
≤18.0 |
≤18.0 |
≤18.0 |
≤18.0 |
≤22.0 |
||
Bulk Density |
Electrode |
g∕㎝3 |
≥1.68 |
≥1.52 |
≥1.66 |
≥1.65 |
≥1.68 |
Nipple |
≥1.76 |
≥1.68 |
≥1.76 |
≥1.70 |
≥1.78 |
||
|
C.T.E （100～600℃） |
Electrode |
10-6∕℃ |
≤1.4 |
≤1.5 |
≤1.4 |
≤1.5 |
≤1.5 |
Nipple |
≤1.3 |
≤1.4 |
≤1.3 |
≤1.4 |
≤1.3 |
||
Ash content |
% |
≤0.3 |
≤0.3 |
≤0.3 |
≤0.3 |
≤0.3 |
|
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