Physical and chemical index
Items		Unit	RP		HP		UHP
			250-300mm	350-550mm	200-400mm	450-550mm	300-400mm	450-550mm
Resistivity(MAX)	Electrode	μΩm	9		7	7.5	6.2	6.5
	Nipple		8.5		6.5		5.5
Bending Strenth(MIN)	Electrode	Mpa	7.8	6.4	10.5	9.8	10.5	10
	Nipple		13		14		16
Elastic Modulus(MAX)	Electrode	Gpa	9.3		12		14
	Nipple		14		16		18
Bulk Density(MIN)	Electrode	g/cm3	1.52		1.6		1.65	1.64
	Nipple		1.68		1.7		1.72	1.7
Ash(MAX)	Electrode/Nipple	%	0.5		0.3		0.3
CTE(MAX)	Electrode	10-6/°C	2.9		2.4		1.5
	Nipple		2.8		2.2		1.4

 

 

Tolerances of electrode diameters and lengthes(mm)
Nominal Diameter	Actual Diameter			Length
	Max	Min	Black surface min
250	256	251	248	1600/1800
300	307	302	299	1600/1800
350	357	352	349	1600/1800
400	409	403	400	1600/1800/2000/2200
450	460	454	451	1600/1800/2000/2200
500	511	505	502	1800/2000/2200/2400
550	562	556	553	1800/2000/2200/2400

 

Recommended current carrying capacity
Nominal diameter		RP		HP				UHP
		Electrical Arc furnace		Electrical Arc furnace		Ladle Refining furnace		Electrical Arc furnace		Ladle Refining furnace
		Current carrying capacity	Current Density	Current carrying capacity	Current Density	Current carrying capacity	Current Density	Current carrying capacity	Current Density	Current carrying capacity		Current Density
Inch	Mm	A	A/ cm2	A	A/ cm2	A	A/ cm2	A	A/ cm2	A		A/ cm2
12	300	11000-15000	15-21	13000-17500	18-25	15000-21000	21-29
14	350	15000-20000	15-20	17500-24500	18-25	20000-28000	21-29	22000-31000	23-32	24000-33000		25-34
16	400	19000-26000	15-20	21500-32000	17-25	24000-35000	19-28	28000-41000	22-32	31000-44000		24-34
18	450	23000-31000	14-19	26000-40500	16-25	29000-45000	18-28	33000-46000	20-28	36000-49000		22-30
20	500	28000-36000	14-18	32000-50000	16-25	34000-54000	17-27	38000-56000	19-28	42000-60000		21-30
22	550	32000-42000		37000-57000	15-23	40000-62000	16-25	45000-65000	18-26	50000-70000		20-28

 

Graphite electrodes are widely used in Electric Arc Furnace, Ladle Furnace, Mineral-heated Furnace for making alloy steel and other metallic or non-metallic materials.

Producing progress:

Rawmaterial→Crushing→Calcining→Milling/medium crushing→Screening→-Dosing→Kneading→Forming→Baking→Graphitization→Mmachining→Inspection→Pproducts

Products advantages:

1. Low electric resistivity

2. Good electric and thermal conductivity

3. High oxidation resistance

4. Great resistance to thermal and mechanical shock

5. High mechanical strength

6. High machining accuracy

Grade:RP,HP,UHP

Diameter:200-600MM

Length:1600MM-2400MM

Fushun Carbon Co., Ltd.

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