Type: | Graphite Electrodes |
---|---|
Composition: | Coke |
Carbon Content: | High-Carbon |
Grade: | UHP |
Forming Way: | Extruded Graphite |
Crystal Morphology: | Compact Crystalline Graphite |
Samples: |
---|
Customization: |
---|
Suppliers with verified business licenses
Surface Quality of Graphite Electrode
|
||
1. There are no more than two defects or holes in the electrode surface ,and the size does not exceed te following table.
2. There is no transverse crack on the surface of the electrode ,and the longitudinal crack is 0.3-1mm wide. The length is not more than 5% of the circumference of the electrode ,and the longitudinal crack with a width of not less than 0.3mm is not counted .
3. The black skin area of the electrode surface ,the width is less than 1/10 of circumference of the electrode ,and the length is less than 1/3 of the length of the electrode..
|
||
Item
|
Nominal Diameter (mm)
|
|
Specification
|
300-400
|
450-600
|
Defect Size
|
|
|
Diameter
|
20-40
|
30-50
|
Depth
|
5-10
|
10-15
|
Allowable current of Graphite electrode
|
|||
Nominal Diameter
|
Current Capacity
|
Current Density
|
|
mm
|
inch
|
||
300
|
12
|
10000-13000
|
14-18
|
350
|
14
|
13500-18000
|
14-18
|
400
|
16
|
18000-23500
|
14-18
|
450
|
18
|
22000-27000
|
13-17
|
500
|
20
|
25000-32000
|
13-16
|
600
|
24
|
30000-36000
|
12-15
|
Items | Specific Electric Resistance <= µΩ·m | Flexural Strength >=MPa | MOE<= GPa | CTE( 100-600ºC) <= 10-6/ºC | ASH<= | DIAMETER AND LENGTH | Bulk density >=g/cm3 | |
Standard ( YB/T 4089-2015 ) | E | 7.0-8.5 | 7.0-9.5 | 6.0-9.0 | 2.2-2.5 | 0.5 | 100-960mm 1600mm-2700mm |
1.60-1.65 |
N | 4.0-4.5 | 17-22 | 12-16 | 1.5-2.0 | 1.75-1.82 | |||
Factory Supply | E | 8 | 7.5-9.5 | 6.0-10 | 2.5 | 0.5 | 1.6 | |
N | 4.0 | 17-22 | 12-16 | 2.0 | 1.80 |
Items | Specific Electric Resistance <= µΩ·m | Flexural Strength >=MPa | MOE<= GPa | CTE( 100-600ºC) <= 10-6/ºC | ASH<= | DIAMETER AND LENGTH | Bulk density >=g/cm3 | |
Standard | E | 5.5-7.0 | 10.5-15 | 9-12 | 2.2-2.5 | 0.3 | 100-600mm 1800mm-2700mm |
1.67-1.72 |
N | 4.0-4.5 | 18-24 | 13-18 | 1.5-2.0 | 1.75-1.82 | |||
Factory Supply | E | 8 | 10.5-15 | 9-12 | 2.5 | 0.3 | >=1.68 | |
N | 4.0 | 18-24 | 13-18 | 2.0 | >=1.78 |
Items | Specific Electric Resistance <= µΩ·m | Flexural Strength >=MPa | MOE<= GPa | CTE( 100-600ºC) <= 10-6/ºC | ASH<= | DIAMETER AND LENGTH | Bulk density >=g/cm3 | Needle Coke Content % |
|
Standard ( YB/T 4089-2015 ) | E | 4.5-6.2 | 10-16 | 10-14 | 1.1-1.5 | 0.2 | 250mm-700mm 1800mm-2700mm |
1.66-1.72 | 45-90% |
N | 3.0-4.2 | 21-30 | 15-20 | 0.9-1.2 | 1.75-1.82 | ||||
Factory Supply | E | <=6.0 | 10-16 | 10-16 | 1.5 | 0.2 | >=1.67 | 50%-100% | |
N | <=4.0 | 21-30 | 14-18 | 1.2 | >=1.78 |
Items | Specific Electric Resistance <= µ·m | Flexural Strength >=MPa | MOE<= GPa | CTE( 100-600ºC) <= 10-6/ºC | ASH<= | DIAMETER AND LENGTH | Bulk density >=g/cm3 | Needle Coke Content % |
|
Standard ( YB/T 4089-2015 ) | E | 5.2-6.5 | 10.5-15 | 9-12 | 1.5-2.2 | 0.2 | 200mm-700mm 1800mm-2700mm |
1.66-1.72 | 20-35% |
N | 4.0-4.5 | 20-26 | 14-18 | 1.2-1.5 | 1.75-1.82 | ||||
Factory Supply | E | <=6.5 | 10.5-15 | 9-12 | 1.5 | 0.2 | >=1.66 | 25%-40% | |
N | <=4.0 | 20-26 | 14-20 | 1.2 | >=1.78 |
Suppliers with verified business licenses