Factory Outlets Arc Furnace 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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We are convinced that with joint efforts, the business between us will bring us mutual benefits. We can assure you product quality and competitive price for Factory Outlets Arc Furnace Graphite Electrode - UHP Grades Graphite Electrodes – Sungraf , The product will supply to all over the world, such as: Slovenia, Norwegian, United States, With a team of experienced and knowledgeable personnel, our market covers South America, the USA, the Mid East, and North Africa. Many customers have become our friends after good cooperation with us. If you have the requirement for any of our products, please contact us now. We are looking forward to hearing from you soon.
By Olivia from Gabon - 2018.12.05 13:53
Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
By jari dedenroth from Peru - 2018.05.15 10:52