Specifications
RP grade graphite electrode
|
Item
|
Unit
|
Regular-power
|
Impregnated
|
||||||
|
φ75-
130 |
φ150-
225 |
φ250-
300 |
φ350-
500 |
φ75-
200 |
φ250-
350 |
φ400-
500 |
|||
|
Specific Resistance (≤)
|
E
|
μ Ω·m
|
8.5
|
9
|
9
|
9
|
8
|
8
|
8
|
|
N
|
8
|
8
|
8
|
8
|
7.5
|
7.5
|
7.5
|
||
|
Bending Strength (≥)
|
E
|
MPa
|
9.8
|
9.8
|
7.8
|
6.4
|
10
|
9
|
8
|
|
N
|
13
|
13
|
13
|
13
|
15
|
15
|
15
|
||
|
Elastic Modulus (≤)
|
E
|
GPa
|
9.3
|
9.3
|
9.3
|
9.3
|
12
|
12
|
12
|
|
N
|
14
|
14
|
14
|
14
|
14
|
14
|
14
|
||
|
Bulk Density (≥)
|
E
|
g/cm3
|
1.58
|
1.52
|
1.52
|
1.52
|
1.58
|
1.58
|
1.58
|
|
N
|
1.63
|
1.63
|
1.68
|
1.68
|
1.68
|
1.68
|
1.68
|
||
|
C.T.E.(≤)
(100-600°C) |
E
|
10-6/°C
|
2.9
|
2.9
|
2.9
|
2.9
|
2.7
|
2.7
|
2.7
|
|
N
|
2.7
|
2.7
|
2.8
|
2.8
|
2.5
|
2.5
|
2.5
|
||
|
Ash(≤)
|
|
%
|
0.5
|
0.5
|
0.5
|
0.5
|
0.3
|
0.3
|
0.3
|
HP and UHP graphite electrode
|
Item
|
Unit
|
High-power
|
Super high-power
|
Ultra high-power
|
|||||||
|
φ200-400
|
φ450-500
|
φ350-400
|
φ450-500
|
φ300-400
|
φ450-500
|
||||||
|
Specific Resistance(≤)
|
E
|
μ Ω·m
|
7
|
7.5
|
6.5
|
7
|
6.2
|
6.5
|
|||
|
N
|
6.5
|
6.5
|
6
|
6
|
5.5
|
5.5
|
|||||
|
Bending Strength (≥)
|
E
|
MPa
|
10.5
|
9.8
|
10.5
|
10
|
10.5
|
10
|
|||
|
N
|
15
|
15
|
16
|
16
|
16
|
16
|
|||||
|
Elastic Modulus (≤)
|
E
|
GPa
|
12
|
12
|
13
|
13
|
14
|
14
|
|||
|
N
|
16
|
16
|
17
|
17
|
18
|
18
|
|||||
|
Bulk Density (≥)
|
E
|
g/cm3
|
1.6
|
1.6
|
1.62
|
1.62
|
1.65
|
1.64
|
|||
|
N
|
1.7
|
1.7
|
1.71
|
1.71
|
1.72
|
1.72
|
|||||
|
C.T.E.(≤)
(100-600°C) |
E
|
10-6/°C
|
2.4
|
2.4
|
2.2
|
2.2
|
1.5
|
1.5
|
|||
|
N
|
2.2
|
2.2
|
1.8
|
1.8
|
1.4
|
1.4
|
|||||
|
Ash(≤)
|
|
%
|
0.3
|
0.3
|
0.3
|
0.3
|
0.3
|
0.3
|
|||