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Graphite Electrode For Steel Making

They are a key component in steel making process and melting and refining raw materials contained, for example,iron ore, coke, and limestone to produce high-quality steel. They are also used in electric arc furnaces, which are the main equipment used for raw material melting and refining.

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Products Description

Graphite electrode for steel making

Products parameters

Graphite Electrodes diameter and allowable deviation

UNIT (MM)
Name	Nominal Diameter mm	Actual Maximum Diameter mm	Actual Minimum Diameter mm	Nominal Length mm
UHP/HP Graphite electrode	100	102	107	1700/1800/1900/2700
	150	152	157	1600/1800/1900
	200	205	202	1600/1800/1900
	250	256	251	1600/1800/1900
	300	307	302	1600/1800/2000
	350	358	352	1600/1800/2000
	400	409	403	1600/1800/2000/2200
	450	460	454	1600/1800/2000/2200
	500	511	505	1800/2000/2200/2400
	550	562	556	1800/2000/2200/2400/2700
	600	613	607	2000/2200/2400/2700
	650	663	659	2000/2200/2400/2700
	700	714	710	2000/2200/2400/2700
	750	765	761	2000/2200/2400/2700

Graphite electrode technical parameters

Item		Unit	RP		HP		UHP
			≤∅400	≥∅450	≤∅400	≥∅450	≤∅400	≥∅450
Electric Resistivity	Electrode	μΩ*m	≤8.5	≤9.0	≤6.0	≤6.5	≤5.0	≤5.5
	Nipple		≤6.5	≤6.5	≤5.5	≤5.5	≤4.5	≤4.5
Transverse Strength	Electrode	MPa	≥8.0	≥7.0	≥10.5	≥10.5	≥15.0	≥15.0
	Nipple		≥16.0	≥16.0	≥20.0	≥20.0	≥22.0	≥22.0
Young’s Modulus	Electrode	Gpa	≤9.3		≤12.0		≤14.0
	Nipple		≤14.0		≤16.0		≤18.0
Bulk Density	Electrode	g/cm³	≥1.54		≥1.65		≥1.68
	Nipple		≥1.69		≥1.73		≥1.76
Coefficient of Termal Expansion (100℃﹣600℃)	Electrode	100^-6/℃	≤2.5		≤2.0		≤1.5
	Nipple		≤2.0		≤1.6		≤1.2
Ash		%	≤0.3		≤0.2		≤0.2

Graphite Electrode Production Process

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Applications

Melting of raw materials: Electric arc furnaces use graphite electrodes to conduct electrical current by the furnace to produce heat, which melts the raw materials. They are the primary source of heat in furnace and take an important role in melting raw materials.

Refining the molten steel: After raw materials melting, the molten steel needs to be refined to clear up impurities and get the desired chemical composition. They also used to adjust temperature and chemistry of the molten steel to achieve the excellent quality.

Ladle furnaces: After steel refined, they often transported to ladle furnaces for further refining and treatment. They are used to heat and maintain the temperature of the molten steel in ladle furnaces.

Packing and shipping of RP graphite electrode

Packing and Shipping

Finished Graphite Electrodes are packed according to customers' requirements, shipped via containers or trucks, and provided with perfect after-sales service.

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