UHP Graphite Electrode
◐The Ultra High Power (UHP) Graphite Electrodes produced by 100% high quality imported needle coke, advanced production equipment and technology, and is produced in strict accordance with the world class standard.
Product Details
1.Introduction
The Ultra High Power (UHP) Graphite Electrodes produced by 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 (LRF) steelmaking.
2.Applications
Ultra High Power (UHP) Graphite Electrodes are widely used in various DC/AC Ultra-high Power (UHP) Electric Arc Furnace, Ladle Refining Furnace, and Submerged Arc Furnace for smelting various kinds of high quality alloy steel, metals,etc. for its excellent performance.
3.Specifications
Items | Classification | Unit | Nominal Diameter (mm) | |||
250-400 | 450-500 | 550-650 | 700-800 | |||
Resistivity | Electrode | μΩm ≤ | 6.2 | 6.3 | 6.0 | 5.8 |
Nipple | 5.3 | 5.3 | 4.5 | 4.3 | ||
Bending Strength | Electrode | Mpa ≥ | 10.5 | 10.5 | 10.0 | 10.0 |
Nipple | 20.0 | 20.0 | 22.0 | 23.0 | ||
Young’s Modulus | Electrode | Gpa ≤ | 14.0 | 14.0 | 14.0 | 14.0 |
Nipple | 20.0 | 20.0 | 22.0 | 22.0 | ||
Bulk Density | Electrode | g/cm3 ≥ | 1.67 | 1.66 | 1.66 | 1.68 |
Nipple | 1.74 | 1.75 | 1.78 | 1.78 | ||
CTE（100℃-600℃） | Electrode | ×10-6/℃ ≤ | 1.5 | 1.5 | 1.5 | 1.5 |
Nipple | 1.4 | 1.4 | 1.3 | 1.3 | ||
Ash Content | Electrode | % ≤ | 0.5 | 0.5 | 0.5 | 0.5 |
Nipple | ||||||
Note: Ash Content is only for reference.
Recommended current load of UHP Graphite Electrodes
Grade | Nominal Dia. | Allowable current A | Current density A/cm2 | ||
UHP electrode |
| AC | DC | AC | DC |
300mm | 15000～22000 |
| 20～30 |
| |
350mm | 20000～30000 | – | 20～30 | – | |
400mm | 25000～40000 | – | 19～30 | – | |
450mm | 32000～45000 | – | 19～27 | – | |
500mm | 38000～55000 | – | 18～27 | – | |
550mm | 45000～65000 | 49000～78000 | 18～27 | 20～32 | |
600mm | 50000～75000 | 58000～93000 | 18～26 | 20～32 | |
650mm | 60000～85000 | 60000～110000 | 18～25 | 20～30 | |
700mm | 70000～120000 | 79000～130000 | 18～30 | 20～30 | |