Eaf Lf High Power Graphite Electrode 550mm 22 Inch Hp Electrodes & Graphite
550mm High Power Graphite Electrode, 22 Inch HP Graphite Electrode for EAF/LF
BD: Bulk Density:
also called apparent density or volumetric density. It is a measurement of weight per unit volume.
SPR: Specific Resistance
the resistance offered per unit length or unit cross-sectional area when the known amount of voltage is applied.
MOR: Modulus of Rupture (Flexual Strength)
Modulus of rupture, also known as flexural strength, or bend strength, it is a material property, defined as the stress in a material just before it yields in a flexure test. The flexural strength represents the highest stress experienced within the material at its moment of yield. Higher flexural strength in electrode will generally result in lower electrode breakage frequency.
MOE: Modulus of Elastic (Tensile Strength)
An elastic modulus (also known as modulus of elasticity) is a quantity that measures an object or substance's resistance to being deformed elastically (i.e., non-permanently) when a stress is applied to it. Graphite’s strength characteristics increase significantly with temperature.
CTE: Coefficient of Thermal Expansion
The coefficient of thermal expansion is often defined as the fractional increase in length per unit rise in temperature. Lower CTE will give better resistance to thermal shock. Also, CTE compatibility between the graphite electrode and the connecting pin is important for satisfactory performance of the electrode joint.
Ash Content
The impurities left in graphite after baking.
General Properties:
| Item | Unit | UHP | HP | RP | UHP Nipple | HP Nipple | |||
| 450-500mm | 550-700mm | 450-500mm | 550-700mm | 400-450mm | 500-700mm | ||||
| Bulk Density | g/cm3 | 1.66-1.73 | 1.68-1.75 | 1.60-1.70 | 1.62-1.72 | 1.55-1.65 | 1.54-1.64 | 1.80-1.85 | 1.72-1.80 |
| Resistivity | μΩm | 4.8-6.0 | 4.5-5.8 | 5.2-7.5 | 5.5-7.2 | 7.5-9.0 | 8.0-9.5 | 3.0-4.3 | 4.0-6.0 |
| Flexual Strength | MPa | 10.5-15.0 | 10.0-14.0 | 10.5-14.5 | 9.0-13.5 | 8.0-11.0 | 7.0-10.0 | 20.0-30.0 | 18.0-25.0 |
| Elastic Modulus | GPa | 8.0-10.0 | 8.0-12.0 | 6.0-9.3 | 16.0-20.0 | 12.0-16.0 | |||
| CTE (30-600) | 10-6/℃ | ≤1.5 | ≤2.2 | ≤2.8 | ≤1.3 | ≤2.0 | |||
| Ash Content | % | ≤0.3 | ≤0.3 | ≤0.5 | ≤0.3 | ≤0.3 | |||
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