Graphite electrode can be divided into ordinary power, high power and ultra high power electrode by electrode quality index.

1. Graphite electrode of ordinary power

    Allowable used graphite electrode with current density lower than 17A/cm², mainly used in ordinary power electric furnace for steel-making, silicon smelting and yellow phosphorus smelting.

2. Graphite electrode with oxidation resistant coating

    Graphite electrode with oxidation resistant coating has protective layer which can conduct electricity, heat resistant and anti-oxidation, reduce the electrode consume when steel-making.

3. Graphite electrode of high power

   Allowable used graphite electrode with current density lower than 18-25A/cm², mainly used in high power arc furnace for steel-making.

4. Graphite electrode of ultra high power

    Allowable used graphite electrode with current density lower than 25A/cm². Mainly used in ultra high power arc furnace for steel-making.