Ultra High Power graphite Electrode Technical Properties (UHP-A) |
Item
|
Unit
|
Nominal Diameter(mm)
|
350,400
|
450,500
|
550,600
|
Specific resistance
|
Electrode
|
µΩ.m
|
4.8-6.0
|
4.8-6.2
|
5.0-6.2
|
Nipple
|
3.5-4.5
|
3.8-4.5
|
3.8-4.5
|
Bending Strength
|
Electrode
|
Mpa
|
≥12
|
≥11
|
≥11
|
Nipple
|
≥18
|
≥18
|
≥18
|
Elastic Modulus
|
Electrode
|
Gpa
|
≤14
|
≤14
|
≤14
|
Nipple
|
≤18
|
≤18
|
≤18
|
Bulk Density
|
Electrode
|
g/cm3
|
1.65-1.72
|
1.66-1.74
|
1.66-1.74
|
Nipple
|
1.76-1.78
|
1.76-1.82
|
1.78-1.82
|
Ash
|
Electrode
|
%
|
≤0.3
|
≤0.3
|
≤0.3
|
Nipple
|
≤0.3
|
≤0.3
|
≤0.3
|
C.T.E.(100-600℃)
|
Electrode
|
10-6/℃
|
1.2-1.4
|
1.2-1.4
|
1.2-1.4
|
Nipple
|
1.0-1.2
|
1.0-1.2
|
1.0-1.2
|
|
> Current Carrying Capacity (UHP-A)
|
Nominal Diameter
|
Cross Sectional Area
|
Electrical are furnace
|
Refiners furnace
|
Current Carrying Capacity
|
Current Density
|
Current Carrying Capacity
|
Current Density
|
in
|
mm
|
c㎡
|
A
|
A/c㎡
|
A
|
A/c㎡
|
14
|
350
|
973
|
23000-32000
|
24-33
|
26000-35000
|
27-36
|
16
|
400
|
1275
|
28000-41000
|
22-32
|
31000-44000
|
24-34
|
18
|
450
|
1622
|
34000-48500
|
21-30
|
36000-49500
|
22-31
|
20
|
500
|
2000
|
40000-58000
|
20-29
|
42000-60500
|
21-30
|
22
|
550
|
2427
|
46000-65000
|
19-27
|
49000-70000
|
20-29
|
24
|
600
|
2892
|
52000-75000
|
18-26
|
56000-81000
|
19-28
|
|
> Ultra High Power graphite Electrode Technical Properties(UHP-B)
|
Item
|
Unit
|
Nominal Diameter
|
300-400
|
450-500
|
Specific resistance
|
Electrode
|
µΩ.m
|
≤6.2
|
≤6.5
|
Nipple
|
≤5.5
|
≤5.5
|
Bending Strength
|
Electrode
|
Mpa
|
≥10.5
|
≥10.0
|
Nipple
|
≥16
|
≥16
|
Elastic Modulus
|
Electrode
|
Gpa
|
≤14
|
≤14
|
Nipple
|
≤18
|
≤18
|
Bulk Density
|
Electrode
|
g/cm3
|
≥1.65
|
=1.64
|
Nipple
|
≥1.72
|
≥1.70
|
Ash
|
Electrode
|
%
|
≤0.3
|
≤0.3
|
Nipple
|
≤0.3
|
≤0.3
|
C.T.E.(100-600℃)
|
Electrode
|
10-6/℃
|
≤1.5
|
≤1.5
|
Nipple
|
≤1.4
|
≤1.4
|
|
> Current Carrying Capacity(UHP-B)
|
Nominal Diameter
|
Cross Sectional Area
|
Current Carrying Capacity
|
Current Density
|
in
|
mm
|
c㎡
|
A
|
A/c㎡
|
12
|
300
|
716
|
15000-22000
|
20-30
|
14
|
350
|
973
|
20000-30000
|
20-30
|
16
|
400
|
1275
|
25000-40000
|
19-30
|
18
|
450
|
1622
|
32000-45000
|
19-27
|
20
|
500
|
2000
|
38000-55000
|
18-27
|
|
> High Power graphite Electrode Technical Properties(HP-A)
|
Item
|
Unit
|
Nominal Diameter(mm)
|
350、400
|
450、500
|
550、600
|
Electric resistance
|
Electrode
|
µΩ.m
|
≤6.8
|
≤6.5
|
≤7.0
|
Nipple
|
≤5.5
|
≤5.5
|
≤5.5
|
Bending Strength
|
Electrode
|
Mpa
|
≥11
|
≥12.5
|
≥11
|
Nipple
|
≥18
|
≥17
|
≥16
|
Elastic Modulus
|
Electrode
|
Gpa
|
≤10
|
≤10
|
≤10
|
Nipple
|
≤16
|
≤16
|
≤16
|
Bulk Density
|
Electrode
|
g/cm3
|
≥1.64
|
≥1.64
|
≥1.64
|
Nipple
|
≥1.74
|
≥1.74
|
≥1.75
|
Ash
|
Electrode
|
%
|
≤0.3
|
≤0.3
|
≤0.3
|
Nipple
|
≤0.3
|
≤0.3
|
≤0.3
|
C.T.E.(100-600℃)
|
Electrode
|
10-6/℃
|
≤2.0
|
≤1.8
|
≤1.8
|
Nipple
|
≤2.5
|
≤1.5
|
≤1.5
|
|
> Current Carrying Capacity (HP-A)
|
Nominal Diameter
|
Cross Sectional Area
|
Electrical are furnace
|
Refiners furnace
|
Current Carrying Capacity
|
Current Density
|
Current Carrying Capacity
|
Current Density
|
in
|
mm
|
c㎡
|
A
|
A/c㎡
|
A
|
A/c㎡
|
14
|
350
|
973
|
17500-24500
|
18-25
|
20000-28000
|
21-29
|
16
|
400
|
1275
|
21500-31000
|
17-24
|
25000-35000
|
19-28
|
18
|
450
|
1622
|
25500-39000
|
16-24
|
30000-45000
|
19-28
|
20
|
500
|
2000
|
21000-48000
|
15-23
|
36000-54000
|
18-27
|
22
|
550
|
2427
|
34000-56000
|
14-22
|
40000-60000
|
18-25
|
24
|
600
|
2892
|
36000-65000
|
12-22
|
45000-65000
|
16-23
|
|
> High Power graphite Electrode Technical Properties(HP-B)
|
Item
|
Unit
|
Nominal Diameter
(mm)
|
|
200-400
|
450-500
|
Electric resistance
|
Electrode
|
µΩ.m
|
≤7
|
≤7.5
|
Nipple
|
≤6.5
|
≤6.5
|
Bending Strength
|
Electrode
|
Mpa
|
≥10.5
|
≥9.8
|
Nipple
|
≥14
|
≥14
|
Elastic Modulus
|
Electrode
|
Gpa
|
≤12
|
≤12
|
Nipple
|
≤16
|
≤16
|
Bulk Density
|
Electrode
|
g/cm3
|
≥1.60
|
≥1.60
|
Nipple
|
≥1.70
|
≥1.70
|
Ash
|
Electrode
|
%
|
≤0.3
|
≤0.3
|
Nipple
|
≤0.3
|
≤0.3
|
C.T.E.(100-600℃)
|
Electrode
|
10-6/℃
|
≤2.4
|
≤2.4
|
Nipple
|
≤2.2
|
≤2.2
|
|
> Current Carrying Capacity (HP-B)
|
Nominal Diameter
|
Current Carrying Capacity
|
Current Density
|
in
|
mm
|
A
|
A/c㎡
|
8
|
200
|
5500-9000
|
18-25
|
9
|
225
|
6500-10000
|
18-25
|
10
|
250
|
8000-13000
|
18-25
|
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
|
|
> Regular Power graphite Electrode Technical Properties (RP-A)
|
Item
|
Unit
|
Nominal Diameter(mm)
|
350
|
400-600
|
Electric resistance
|
Electrode
|
µΩ.m
|
≤9.0
|
≤9.5
|
Nipple
|
≤6.5
|
≤6.5
|
Bending Strength
|
Electrode
|
Mpa
|
≥7.8
|
≥7.8
|
Nipple
|
≥16
|
≥16
|
Elastic Modulus
|
Electrode
|
Gpa
|
≤9.3
|
≤9.3
|
Nipple
|
≤14
|
≤14
|
Bulk Density
|
Electrode
|
g/cm3
|
≥1.54
|
≥1.54
|
Nipple
|
≥1.70
|
≥1.70
|
Ash
|
Electrode
|
%
|
≤0.4
|
≤0.4
|
Nipple
|
≤0.4
|
≤0.4
|
C.T.E.(100-600℃)
|
Electrode
|
10-6/℃
|
≤2.8
|
≤2.8
|
Nipple
|
≤1.8
|
≤1.8
|
|
> Current Carrying Capacity(RP-A)
|
Nominal Diameter
|
Cross Sectional Area
|
Current Carrying Capacity
|
Current Density
|
in
|
mm
|
C㎡
|
A
|
A/C㎡
|
14
|
350
|
973
|
15000-22000
|
15-22
|
16
|
400
|
1275
|
20000-28000
|
15-21
|
18
|
450
|
1622
|
24000-34000
|
13-20
|
20
|
500
|
2000
|
28000-36000
|
13-18
|
22
|
550
|
2427
|
31500-41000
|
13-17
|
24
|
600
|
2892
|
38000-46000
|
13-16
|
|
> Regular Power graphite Electrode Technical Properties (RP-B)
|
Item
|
Unit
|
Nominal Diameter(mm)
|
150-200
|
250-350
|
400-500
|
Electric resistance
|
Electrode
|
µΩ.m
|
≤9.0
|
≤9.0
|
≤9.0
|
Nipple
|
≤7.5
|
≤7.5
|
≤7.5
|
Bending Strength
|
Electrode
|
Mpa
|
≥9.8
|
≥7.8
|
≥6.4
|
Nipple
|
≥13
|
≥13
|
≥13
|
Elastic Modulus
|
Electrode
|
Gpa
|
≤9.3
|
≤9.3
|
≤9.3
|
Nipple
|
≤14
|
≤14
|
≤14
|
Bulk Density
|
Electrode
|
g/cm3
|
≥1.52
|
≥1.52
|
≥1.52
|
Nipple
|
≥1.63
|
≥1.68
|
≥1.68
|
Ash
|
Electrode
|
%
|
≤0.5
|
≤0.5
|
≤0.5
|
Nipple
|
≤0.5
|
≤0.5
|
≤0.5
|
C.T.E.(100-600℃)
|
Electrode
|
10-6/℃
|
≤2.9
|
≤2.9
|
≤2.9
|
Nipple
|
≤2.7
|
≤2.7
|
≤2.7
|
|
> Current Carrying Capacity(RP-B)
|
Nominal Diameter
|
Current Carrying Capacity
|
Current Density
|
in
|
mm
|
A
|
A/c㎡
|
8
|
200
|
5000-6900
|
15-21
|
10
|
250
|
7000-10000
|
14-20
|
12
|
300
|
10000-13000
|
14-18
|
14
|
350
|
13500-18000
|
14-18
|
16
|
400
|
18000-23500
|
14-18
|
18
|
450
|
22000-27000
|
13-17
|
20
|
500
|
25000-32000
|
13-16
|
|