Specification:
Technical Indicators of Ultra high power graphite electrode:
|
Items
|
Classification
|
Unit
|
Nominal Diameter (mm)
|
|
High Power Graphite ElectrodesHP
|
high power type II Graphite Electrodes
|
|
200-400
|
450-500
|
550-600
|
350-400
|
450-500
|
|
Resistivity
|
Electrode
|
μΩm
|
7.0
|
7.0
|
7.0
|
6.5
|
6.5
|
|
Nipple
|
6.0
|
6.0
|
5.8
|
5.5
|
5.5
|
|
Bending Strength
|
Electrode
|
Mpa
|
10.5
|
10.0
|
10.0
|
10.0
|
10.0
|
|
Nipple
|
14.0
|
14.0
|
16.0
|
16.0
|
16.0
|
|
Young’s Modulus
|
Electrode
|
Gpa
|
12.0
|
12.0
|
12.0
|
14.0
|
14.0
|
|
Nipple
|
16.0
|
16.0
|
16.0
|
18.0
|
18.0
|
|
Bulk Density
|
Electrode
|
g/cm3
|
1.62
|
1.62
|
1.62
|
1.64
|
1.63
|
|
Nipple
|
1.72
|
1.72
|
1.72
|
1.72
|
1.72
|
|
CTE (100℃-600℃)
|
Electrode
|
×10-6/℃
|
2.4
|
2.4
|
2.4
|
2.4
|
2.4
|
|
Nipple
|
2.2
|
2.2
|
2.2
|
1.6
|
1.6
|
|
Ash Content
|
|
%
|
0.3
|
0.3
|
0.3
|
0.3
|
0.3
|
Recommended current load of HP Graphite Electrodes:
|
Grade
|
Nominal Dia.
|
Allowable current A
|
Current density A/cm2
|
|
HP electrode
|
200mm
|
5500～9000
|
18～25
|
|
250mm
|
8000～13000
|
18～25
|
|
300mm
|
13000～17400
|
17～24
|
|
350mm
|
17400～24000
|
17～24
|
|
400mm
|
21000～31000
|
16～24
|
|
450mm
|
25000～40000
|
15～24
|
|
500mm
|
30000～48000
|
15～24
|
|
550mm
|
34000～53000
|
14～22
|
|
600mm
|
38000～61000
|
13～21
|
