PriceList for Graphite Electrode Block - UHP Grades Graphite Electrodes – Sungraf Detail:
Products Details
The electrodes carry the electricity that heats electric arc furnaces, the vast majority steel furnaces. They are made from petroleum coke after it is mixed with petroleum pitch, extruded and shaped, then baked to sinter it, and then graphitized by heating it above the temperature (3000 °C) that converts carbon to graphite. They can vary in size up to 11 ft. long and 30 in. in diameter.
Usage
-
01
An increasing proportion of global steel is made using electric arc furnaces -
02
The electric arc furnace itself is getting more efficient and making more steel per tonne of electrode
Typical properties of UHP graphite electrodes
|
Applicable Furmace Dia |
AC Furnace |
DC Furnace |
|||
|
300-400mm |
450-500mm |
550-600mm |
650-700mm |
||
|
Bulk Density |
g/cm³ |
1.65～1.76 |
1.64～1.75 |
1.64～1.75 |
1.64～1.75 |
|
Specific Resistance |
μΩM |
4.2～6.0 |
4.2～6.0 |
4.2～6.0 |
4.2～5.5 |
|
Elastic Modulus |
Gpa |
7～14 |
7～14 |
7～14 |
7～14 |
|
kgf/mm² |
700～1,400 |
700～1,400 |
700～1,400 |
700～1,400 |
|
|
Flexural Strength |
MPa |
10.5～15 |
10～15 |
10～15 |
10～15 |
|
kgf/cm² |
105～150 |
100〜150 |
100-150 |
100～150 |
|
|
N/cm² |
1,050～1,500 |
1,000～1,500 |
1,000～1,500 |
1,000～1,500 |
|
|
Coefficient Of Thermal |
X10~-6/℃ |
1.0～1.5 |
1.0～1.5 |
1.0～1.5 |
1.0～1.4 |
|
Real Density |
g/cm³ |
2.20～2.23 |
2.20～2.23 |
2.20～2.23 |
2.20～2.23 |
|
Porosity |
% |
20～26 |
20～27 |
20～27 |
20～27 |
|
Ash Content |
% |
≤0.2 |
≤0.2 |
≤0.2 |
≤0.2 |
Typical properties of nipples
| Specifications |
≤φ400 |
φ450-500 |
φ550 |
φ600-700 |
| Specific Resistance (μΩM ) |
≤4.0 |
≤3.8 |
≤3.6 |
≤3.6 |
| Flexural Strength (MPa) |
18-24 |
17-25 |
20-28 |
20-28 |
| astic Modulus (GPa) |
≤18 |
≤18 |
≤18 |
≤18 |
| Bulk Density (g/cm³) |
1.76-1.84 |
1.78-1.84 |
1.79-1.86 |
1.79-1.86 |
| Coefficient Of Thermal Expansion (106/℃) |
0.9-1.3 |
0.9-1.2 |
0.9-1.1 |
0.9-1.1 |
| Ash Content (%) |
≤0.3 |
≤0.3 |
≤0.3 |
≤0.3 |
Current carrying capacity for UHP graphite electrodes
| Current Capacity Of UHP Graphite Electrodes | |||||
| Specifications | Current Capacity(A) | Current Density(A/cm²) | |||
| (inch) | (mm) | AC | DC | AC | DC |
| 12 | 300 | 18,000-32,000 | - | 24-43 | - |
| 14 | 350 | 22,000-39,000 | - | 22-39 | - |
| 16 | 400 | 28,000-47,000 | - | 21-36 | - |
| 18 | 450 | 34,000-55,000 | - | 21-33 | - |
| 20 | 500 | 41,000-63,000 | - | 20-31 | - |
| 22 | 550 | 48,000-70,000 | 65,000-78,000 | 19-28 | 26-32 |
| 24 | 600 | 55,000-80,000 | 75,000-90,000 | 19-27 | 26-31 |
| W | 650 | 69,000-89,000 | 87,000-104,000 | 20-26 | 25-30 |
| 28 | 700 | 80,000-100,000 | 100,000-120,000 | 20-25 | 25-30 |
Product detail pictures:
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We're commitment to offer you the aggressive cost ,superb products and solutions high quality, too as fast delivery for PriceList for Graphite Electrode Block - UHP Grades Graphite Electrodes – Sungraf , The product will supply to all over the world, such as: Liberia, Yemen, Surabaya, To meet the requirements of individual customers for each bit more perfect service and stable quality products. We warmly welcome customers around the world to visit us, with our multi-faceted cooperation, and jointly develop new markets, create a brilliant future!
By Diana from Naples - 2018.12.22 12:52
This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.
By Tony from Marseille - 2017.09.16 13:44
