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How to distinguish the types of graphite electrodes?

How to distinguish the types of graphite electrodes?
(1) Ordinary power graphite electrode. Graphite electrodes with a current density lower than 17A/cm2 are allowed to be used. They are mainly used in ordinary power electric furnaces for steelmaking, silicon refining, yellow phosphorus refining, etc.

Specifications for RP, HP, UHP graphite electrodes with nipples:

RP	HP	UHP
Electrode: Bulk Density≥ 1.56g/cm3 Specific Resistivity≤ 8.5μm Bending Strength≥ 10.0MPa Elastic Modulus≤ 9.3GPa Thermal Expansion Coefficient≤ 2.7x10 -6/°C Ash≤ 0.5% Nipple: Bulk Density≥ 1.68g/cm3 Specific Resistivity≤ 7.0μm Bending Strength≥ 14.0MPa Elastic Modulus≤ 13.7GPa Thermal Expansion Coefficient≤ 2.5 x10 -6/°C Ash≤ 0.5%	Electrode: Bulk Density≥ 1.65g/cm3 Specific Resistivity≤ 6.5μm Bending Strength≥ 12.0MPa Elastic Modulus≤ 10.0GPa Thermal Expansion Coefficient≤ 2.2x10 -6/°C Ash≤ 0.3% Nipple: Bulk Density≥ 1.74g/cm3 Specific Resistivity≤ 5.5μm Bending Strength≥ 16.0MPa Elastic Modulus≤ 14.0GPa Thermal Expansion Coefficient≤ 2.0 x10 -6/°C Ash≤ 0.3%	Electrode: Bulk Density≥ 1.68g/cm3 Specific Resistivity≤ 5.8μm Bending Strength≥ 16.0MPa Elastic Modulus≤ 14.0GPa Thermal Expansion Coefficient≤ 1.9x10 -6/°C Ash≤ 0.2% Nipple: Bulk Density≥ 1.76g/cm3 Specific Resistivity≤ 4.5μm Bending Strength≥ 18.0MPa Elastic Modulus≤ 16.0GPa Thermal Expansion Coefficient≤ 1.4 x10 -6/°C Ash≤ 0.2%

(2) Anti-oxidation coated graphite electrode. Graphite electrode with a layer of anti-oxidation protective layer coated on the surface forms a protective layer that is both conductive and resistant to high-temperature oxidation, reducing electrode consumption during steelmaking.
(3) High power graphite electrode. Graphite electrodes with a current density of 18 to 25A/cm2 are allowed to be used. They are mainly used in high power electric arc furnaces for steelmaking.
(4) Ultra-high power graphite electrode. Graphite electrodes with a current density greater than 25A/cm2 are allowed to be used. They are mainly used in ultra-high power steelmaking electric arc furnaces.

latest company news about How to distinguish the types of graphite electrodes? 0

Pub Time : 2025-02-07 15:45:45 >> News list

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