Manufacturer of Small Diameter Graphite Electrode - 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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Our primary objective is always to offer our clients a serious and responsible small business relationship, offering personalized attention to all of them for Manufacturer of Small Diameter Graphite Electrode - UHP Grades Graphite Electrodes – Sungraf , The product will supply to all over the world, such as: America, Malawi, Dominica, Looking forward, we will keep pace with the times, continuing to create new products. With our strong research team, advanced production facilities, scientific management and good services, we will supply high quality products to our customers worldwide. We sincerely invite you to be our business partners for mutual benefits.
By Anna from Austria - 2017.12.02 14:11
This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
By Jean Ascher from Australia - 2018.05.15 10:52
