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Graphite Electrodes For Nickel Smelting

Graphite electrodes are often used in smelt nickel industry because of their sound thermal and electrical conductivity, high mechanical strength, and resistance to chemical corrosion. Nickel smelting refers to use high-temperature furnaces and reactors, where graphite electrodes enable to provide the electrical energy required to melt and process the nickel ore.

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Products Description

Graphite electrodes for nickel smelting

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

Certificate

1 1002

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Applications

Electric arc furnaces (EAFs): Generally speaking,graphite electrodes are used in EAFs during the proess of nickel smelting. EAFs main function as below, melt the nickel ore, as well as other materials,for instance, iron ore and coke or coal. They are used to produce an electric arc between electrodes and raw materials, which yield heat and melts the materials.

AOD converters: Graphite electrodes are used in argon oxygen decarburization (AOD) converters,too, which can be see in nickel refining area. AOD converters use a combination of argon gas and oxygen to eliminate impurities from nickel and ameliorate its quality,meanwhile,they can provide the electric current that needed for the process.

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.

Packing-and-transportation1