2022 Latest Design Natural 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 thinks what customers think, the urgency of urgency to act in the interests of a customer position of principle, allowing for better quality, lower processing costs, prices are more reasonable, won the new and old customers the support and affirmation for 2022 Latest Design Natural Graphite Electrode - UHP Grades Graphite Electrodes – Sungraf , The product will supply to all over the world, such as: Washington, Costa Rica, Cape Town, We look forward to hearing from you, whether you are a returning customer or a new one. We hope you will find what you are looking for here, if not, please contact us immediately. We pride ourselves on excellent customer service and response. Thank you for your business and support!
By Jane from Colombia - 2017.09.16 13:44
In China, we have purchased many times, this time is successful and satisfactory, a sincere and realiable Chinese manufacturer!
By Sara from Madrid - 2018.06.18 19:26