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Properties of Graphite electrode and nipple
|
Item
|
Unit
|
Norminal Diameter
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UHP
|
HP
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RP
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≤Φ400
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≥Φ450
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≤Φ400
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≥Φ450
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≤Φ300
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≥Φ350
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Resistance
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E
|
μΩ·m
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≤5.5
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≤6.5
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≤8.5
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N
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≤4.5
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≤5.5
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≤6.5
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Bending Strength
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E
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MPa
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≥11.0
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≥10.5
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≥9.8
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≥8.5
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≥7.0
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|
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N
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≥20.0
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≥16.0
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≥15.0
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Elastic Modulus
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E
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GPa
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≤14.0
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≤12.0
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≤9.3
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N
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≤18.0
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≤16.0
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≤14.0
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Bulk Density
|
E
|
g/cm3
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≥1.66
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≥1.67
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≥1.62
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1.60
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≥1.53
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≥1.52
|
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N
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≥1.75
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≥1.73
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≥1.69
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CTE.
|
E
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10-6/℃
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≤1.5
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≤2.4
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≤2.9
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N
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≤1.4
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≤2.2
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≤2.8
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Ash
|
%
|
≤0.3
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≤0.3
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≤0.5
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Note: The above datas for your reference.
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