UHP Graphite Electrode

UHP graphite electrode is mainly used for smelting scrap steel in eaf steelmaking production.

This is a process in which it is used as a high temperature resistant conductor, and three-phase alternating current is used as a power source. Electric arcs are generated between  electrodes and metal materials, and then the high temperature of the arcs is used to heat and melt the furnace materials.

They are mainly used in DC electric arc furnaces, AC electric arc furnaces and ladle refining furnaces. The purpose of refining is to improve the quality of steel, this process uses the arc generated between the electrode and the molten steel to heat the EAF steelmaking.

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( In AC electric furnace)                                        (In DC electric furnace)                                                    (In Ladle refining furnace)

Raw materials for graphite electrodes -Needle Coke

Needle coke gets its name because its crushed particles are like elongated needles. It is a high-quality coke with pronounced anisotropy and a lustrous long-fiber structure. Their molecular structure is arranged orderly and has suitable graphitization properties. At the same time, it has many advantages, such as low thermal expansion coefficient, porosity, and electrical conductivity.

Therefore, needle coke is a key raw material in the production process of ultra-high power graphite electrodes. The needle coke content of our UHP grade is 100%, and it determines the price of graphite electrode.

Main features

High temperature resistance: It can withstand high temperatures during the electric arc furnace (EAF) steelmaking process. Even in harsh high temperatures up to 3600 degrees Celsius, it will not melt or deform or be damaged under the action of strong arcs.

Low specific resistance: The specific resistance of the electrode body is below 5.0g∕㎝³, and the nipple is below 4.0g∕㎝³. At this time, the resistance to current is small, reducing power loss.

High density: The overall structure has smaller porosity, reducing electrode consumption.

Good electrical conductivity: They have low ash content, are heat-resistant and corrosion-resistant. Therefore they are excellent conductive materials used in electric arc furnaces at high temperatures.

High mechanical strength: During the kneading process, the coke particles are mixed evenly and bonded firmly. Therefore, the flexural and compressive strength are high.

Small thermal expansion coefficient: Because needle coke is added during the production process, the blank is more easily graphitized at high temperatures above 2000℃. The better the degree of graphitization, the smaller the thermal expansion coefficient.

UHP Graphite Electrode Price.

It is important to note that the price of it may vary due to market conditions, supply and demand dynamics, and other external factors. In addition, the rising cost of raw materials such as needle coke has also driven the price.

Your professional UHP graphite electrode manufacturer

As a graphite electrode producer in China, Jinsun has a complete production line, including raw material mixing, roasting, impregnation, graphitization, processing, etc. Our factory supply high quality UHP grade graphite electrodes for your EAF steelmaking production.

Physical &Chemical Properties Of Electrode And Nipple

Allowable Current-Carrying Capacities