Carbon Graphite Electrode 200 250 300mm product parameters
| Item | Unit | RP | HP | UHP | ||||
| 250-400 | 450-800 | 300-400 | 450-700 | 300-400 | 450-700 | |||
| Electric Resistivity | Electrode | μΩ.m | 7.5-8.6 | 7.5-8.8 | 5.5-6.8 | 5.5-7.0 | 4.6-6.0 | 4.8-6.2 |
| Nipple | 4.5-5.5 | 4.0-5.0 | 3.5-4.5 | |||||
| Bending Strength | Electrode | Mpa | ≥8.0 | ≥11.0 | ≥11.0 | |||
| Nipple | ≥15.0 | ≥16.0 | ≥18.0 | |||||
| Elastic Modulus | Electrode | Gpa | ≤9.0 | ≤11.0 | ≤13.0 | |||
| Nipple | ≤13.0 | ≤14.0 | ≤15.0 | |||||
| Bulk Density | Electrode | g/cm3 | 1.55-1.65 | 1.63-1.73 | 1.65-1.75 | |||
| Nipple | 1.70-1.75 | 1.73-1.80 | 1.75-1.82 | |||||
| Ash | Electrode | % | ≤0.3 | |||||
| Nipple | ||||||||
| CTE(100-600)ºC | Electrode | 10-6/ºC | 2.00-2.50 | 1.80-2.00 | 1.30-1.50 | |||
| Nipple | 1.50-1.80 | 1.50-1.80 | 1.20-1.40 | |||||
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What are the different types of graphite electrodes?
Graphite electrodes are classified into several types based on their power rating, purity, and application requirements. The primary categories include:
•Regular Power (RP): Used in small to medium EAFs, with moderate current capacity and higher resistivity.
•High Power (HP): For larger EAFs, offering lower resistivity and higher current handling to enhance melting speed.
•Ultra-High Power (UHP): Designed for state-of-the-art EAFs, featuring ultra-fine grain structures and minimal impurities (ash content <0.5%), enabling the highest current densities and energy efficiency.
•Specialty Graphite Electrodes: Includes grades tailored for specific applications, such as high-purity graphite electrodes (for aluminum smelting or semiconductor production) and spherical graphite electrodes (with optimized particle shape for improved mechanical strength). Each type varies in particle size, binder content, and graphitization degree to suit distinct industrial needs.
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