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UHP 550mm Graphite Electrode

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UHP Graphite Electrode 550mm (22 inch)
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Graphite electrode is one of the most important metallurgical products, mainly used as conductive material in electric arc furnace metallurgy production. UHP graphite electrodes are mainly used for steelmaking high-power and ultra-high power electric furnaces.

Graphite electrode Dimension
● Nominal Diameter: 550mm (min 556mm, max 562mm)
● Nominal Length: 2400 mm (+75mm,-125mm)
● Nipple: 298T4N
● Nipple Diameter: 298.45 mm
● Nipple Length: 355.6 mm
● Typical Weight: Electrodes and Nipple Approx.1005 kg

Physical and Chemical Parameters of UHP550mm Graphite Electrode

Index		Unit	YB/T4090 Industry Standard
			Typical Value

LSR≤	Electrode	μΩ.M	4.5-5.8
	Nipple		3.4-4.5
Flexural Strength ≥	Electrode	Mpa	6.0-8.0
	Nipple		15.0-24.0
Elastic Modulus ≤	Electrode	Gpa	9.0-16.0
	Nipple		12.0-18.0
Bulk Density ≥	Electrode	g/cm³	1.65-1.80
	Nipple		1.76-1.86
CTE ≤	Electrode	10-6/ ℃	1.1
	Nipple		0.9
Ash ≤		%	0.3
Current Carrying Capacity		A	EAF 45000-68000 LF 45000-69000

Advantage

● Withstand large currents, high discharge rate.
● Good dimension stability, not easy to deform.
● Resistant to cracking & spalling.
● High resistance to oxidation and thermal shock.
● High mechanical strength, low electrical resistance.
● High machining accuracy, good surface finishing.