HP Graphite Electrode

With its excellent and special physical and chemical properties, graphite electrodes use the high temperature generated by the arc between the electrode end and the charge as a heat source to melt the charge for steelmaking.

To manufacture high-power graphite electrodes, the needle coke used comes from high-quality needle coke from Japan and South Korea.

The main indicators of graphite electrode quality and performance are volume density DB, electrical resistivity ρ, flexural strength σ, elastic modulus E, thermal expansion coefficient α, and ash content A%.

Rongxing first carefully selects petroleum coke, pitch coke, natural graphite, and special coke.

They are then ground, sorted, measured, and mixed to provide the ideal mixture for each type of product.

To ensure that things are done correctly, each process will be continuously tested, monitored, analyzed, and controlled.

HP Graphite Electrode Specifications

Item		Unit	Graphite Electrode
			HP
			Φ300-Φ800mm
			Typical Value
Resistivity	Electrode	μΩm	5.8-6.6
	Nipple		3.5-4.0
Modulus of Rupture	Electrode	Mpa	10.0-13.0
	Nipple		20.0-23.0
Young’s Modulus	Electrode	Gpa	8.0-12.0
	Nipple		14.0-16.0
Bulk Density	Electrode	g/m³	1.64-1.68
	Nipple		1.75-1.80
CTE(100-600℃)	Electrode	10-6/℃	1.6-1.9
	Nipple		1.1-1.4
Ash		%	0.3

Advantages of high-power graphite electrodes

· Low resistivity

· High-temperature strength

· Good electrical conductivity

· Low thermal expansion coefficient

· Low ash

· Good thermal and electrical conductivity

· Dense and uniform structure

· Good oxidation resistance

· High mechanical strength

Rongxing understands all EAF, LF and foundry applications in China and Middle East countries. And all the technicians are well-trained engineers, experts in the field of furnace or graphite product manufacturing.

Therefore, we can solve actual production problems for customers, improve productivity, and train operators.

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