UHP Graphite Electrode for Electric Arc Furnace
The Ultra High Power (UHP) Graphite Electrodes produced by XINHUI Carbon Group adopts 100% high quality imported needle coke, advanced production equipment and technology, and is produced in strict accordance with the world class standard, the Ultra-high Power (UHP) Graphite Electrode has lower resistivity, better electrical conductivity and higher mechanical strength. The Graphite Electrode Nipples are made of 100% imported needle coke with three times impregnation and four times baking process. The product quality has approached or reached the world-class standard, which can meet the needs of various Ultra-high Power (UHP) Electric Arc Furnace (EAF) and Ladle Refining Furnace (LF) steelmaking.
Physical & chemical properties of UHP graphite electrode and nipples
Item | Unit | Nominal diameter (mm) | ||||
UHP graphite electrode | ||||||
350～500 | 550～750 | |||||
Guaranteed | Typical | Guaranteed | Typical | |||
LSR ≤ | E | UΩ*m | 6.3 | 5.0～6.0 | 5.8 | 4.8～5.5 |
N | 5.3 | 3.8～4.5 | 4.3 | 3.5～4.1 | ||
Flexural | E | MPA | 10.5 | 11.0～13.0 | 10.0 | 10.0～13.0 |
N | 20.0 | 20.0～25.0 | 23.0 | 24.0～30.0 | ||
Elastic modulus≤ | E | GPA | 14 | 8.0～12.0 | 14.0 | 7.0～10.0 |
N | 20.0 | 12.0～16.0 | 22.0 | 16.0～21.0 | ||
Bulk density ≥ | E | G/CM3 | 1.66 | 1.68～1.73 | 1.68 | 1.69～1.73 |
N | 1.75 | 1.76～1.82 | 1.78 | 1.79～1.84 | ||
CTE(100 ℃-600℃) | E | 10-6/℃ | 1.5 | 1.3～1.5 | 1.5 | 1.3～1.5 |
N | 1.4 | 1.0～1.3 | 1.3 | 1.0～1.3 | ||
ASH ≤ | % | 0.5 | 0.2～0.4 | 0.5 | 0.2～0.4 | |
The production process of UHP graphite electrode
Section and plan view of UHP graphite electrode
Advantages and characteristics of UHP graphite electrode
● Higher purity, higher density, and greater chemical stability;
● Low coefficient of thermal expansion, resistance to cracking, spalling and thermal shock;
● Higher mechanical strength and lower electrical resistivity;
● Higher machining accuracy and good surface finish;
● The advanced antioxidant treatment process, lower consumption, and longer operation life.
Company UHP graphite electrode cooperation customer
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