Quality HP 400 * 2100mm graphite electrode with needle coke

FOB Price 1222 - 1233 USD / ton

MOQ	100 ton
Port	Tianjin port , China
Packaging	wooden pallet with steel belt
Lead Time	25 days

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low ash

low consumption

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Quality HP 400 * 2100mm graphite electrode with needle coke

Ultra high power / High power / Regular Power grade graphite electrode is made of needle coke imported from Japan , the production process of UHP HP RP graphite electrode is crushing, calcining,dosing, kneading, forming, baking, impregnation, secondary baking, graphitization and machining process , the nipples of china graphite electrodes are made by three times impregnation and four times baking, the material of graphite electrode arc furnaces is needle coke imported from Japan.

UHP Graphite Electrode Technical Index

Item		Unit	Nominal Diameter Of Electrode
			UHP
			Φ300-Φ500	Φ550-Φ700
Resistivity	Electrode	μΩ.m	≤5.8	≤5.8
	Nipple		≤3.8	≤3.8
Bending Strength	Electrode	Mpa	≥12.0	≥12.0
	Nipple		≥18.0	≥20.0
Young's Modulus	Electrode	Gpa	≤14.0	≤14.0
	Nipple		≤18.0	≤18.0
Bulk Density	Electrode	g/cm³	≥1.68	≥1.70
	Nipple		≥1.76	≥1.78
CET(100℃-60℃)	Electrode	x 10-6/℃	≤1.4	≤1.4
	Nipple		≤1.2	≤1.2

UHP Graphite Electrode Current Load Allowance

Nominal Diameter	Cross Area	Electrical Arc Furnace		Refining Furnace
Nominal Diameter	Cross Area	Current Load Allowance	Current Density	Current Load Allowance	Current Density
mm	cm2	A	A/ cm2	A	A/ cm2
350	973	23000-30000	24-30	26000-31000	27-31
400	1275	28000-38000	22-31	31000-40000	24-31
450	1622	36000-45000	22-28	38000-48000	23-30
500	2000	42000-53000	21-27	46000-57000	23-28
550	2427	50000-63000	21-26
600	2892	61000-72000	21-25
700	3968	75000-90000	19-23

If you have no idea to choose the graphite electrode UHP HP RP nipples for your arc furnace or ladle furnace, then please refer to the data in the two diagrams above, especially electrical resistivity and suggested operation current of the graphite electrode.