|
1. The Specifications for the Electrodes:
1) Regular Power (RP) Grade Graphite Electrodes
Typical Physical Properties
|
BULK DENSITY gm/cc |
≥1.60 |
|
SPECIFIC RESISTANCE ohm^-6*m |
≤8.0 |
|
FLEXURAL STRENGTH MPa |
≥10 |
|
YOUNG’S MODULUS GPa |
≤9.3 |
|
ASH CONTENT % |
≤0.3 |
|
CTE x 10-6/Deg.C |
≤2.7 |
2) High Power (HP) Grade Graphite Electrodes
TYPICAL PHYSICAL PROPERTIES
|
BULK DENSITY gm/cc |
≥1.65 |
|
SPECIFIC RESISTANCE ohm^-6*m |
≤6.5 |
|
FLEXURAL STRENGTH MPa |
≥12 |
|
YOUNG’S MODULUS GPa |
≤12 |
|
ASH CONTENT % |
≤0.2 |
|
CTE x10-6/Deg.C |
≤2.0 |
3) Ultra High Power (UHP) Grade Graphite Electrodes
TYPICAL PHYSICAL PROPERTIES
|
BULK DENSITY gm/cc |
≥1.70 |
|
SPECIFIC RESISTANCE ohm^-6*m |
≤5.8 |
|
FLEXURAL STRENGTH MPa |
≥14 |
|
YOUNG’S MODULUS GPa |
≤14 |
|
ASH CONTENT % |
≤0.2 |
|
CTE x 10-6/Deg.C |
≤1.5 |
2. Standard Size of Electrodes
|
Diameter (mm) |
Nominal Length (mm) |
|
75 |
1000,1200 |
|
100 |
1000,1200,1500 |
|
130 |
1000,1200,1500 |
|
150 |
1200,1500,1800 |
|
175 |
1200,1500,1800 |
|
200 |
1200,1500,1800 |
|
225 |
1500,1800 |
|
250 |
1500,1800 |
|
300 |
1500,1800,2100 |
|
350 |
1500,1800,2100 |
|
400 |
1500,1800,2100,2400,2700 |
|
450 |
1800, 2100, 2400, 2700 |
|
500 |
1800, 2100, 2400, 2700 |
|
550 |
1800, 2100, 2400, 2700 |
|
600 |
1800, 2100, 2400, 2700 |
|
650 |
2400, 2700 |
|
700 |
2400, 2700 | |
