Graphite Electrode For EAF/LF Furnace

Graphite electrodes are mainly made of petroleum coke and needle coke as raw materials

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Graphite Nipple

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+860931-8562800

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Graphite Electrode For EAF/LF Furnace

Graphic Details

Graphite electrodes are mainly made of petroleum coke and needle coke as raw materials, coal tar pitch as binder, and are made through calcination, batching, kneading, pressing, roasting, graphitization, and machining. They are conductors that release energy in the form of electric arcs to heat and melt the charge in electric arc furnaces. They are mainly used in electric arc steelmaking furnaces to produce steel, and in ore-fired furnaces to produce industrial silicon and yellow phosphorus. According to their quality indicators, they can be divided into ordinary power graphite electrodes, high power graphite electrodes, and ultra-high power graphite electrodes.

Process Flow Chart

HP Technical Parameters

Nominal diameter (mm)
Item		Unit	Y8/T4089 Industry Standard		XXTC-HP Enterprise standards		XXTC-HP Measured value
Item		Unit	250\400	450\500	250\400	450\500	250\400	450\500
Electric resistivity	Electrode	μΩm	⩽7.50	⩽7.50	5.40-6.80	5.40-6.80	5.40-6.50	5.40-6.50
Electric resistivity	Nipple	μΩm	⩽6.30	⩽6.30	3.50-4.50	3.50-4.50	3.50-4.30	3.50-4.20
Bulk density	Electrode	g/cm³	⩾1.60	⩾1.60	1.73-1.75	1.73-1.75	1.73-1.75	1.72-1.74
Bulk density	Nipple	g/cm³	⩽1.72	⩽1.72	1.79-1.83	1.79-1.84	1.80-1.82	1.82-1.84
Flexural strength	Electrode	MPa	⩽10.0	⩽10.0	11.0-14.0	11.0-14.0	12.0-15.0	11.0-15.0
Flexural strength	Nipple	MPa	⩾17.0	⩾17.0	20.0-24.0	23.0-25.0	22.0-26.0	23.0-26.0
CIE	Electrode	10⁴/℃	⩽2.40	⩽2.40	1.70-2.00	1.70-2.00	1.70-2.00	1.60-2.00
CIE	Nipple	10⁴/℃	⩽2.20	⩽2.20	1.40-1.80	1.40-1.80	1.40-1.80	1.40-1.80
Electric modutues	Electrode	Gpa	⩽14.0	⩽14.0	9.00-12.0	9.00-12.0	9.00-12.0	9.00-11.5
Electric modutues	Nipple	Gpa	⩽16.0	⩽16.0	12.0-16.0	15.0-19.0	14.0-16.0	15.0-19.0
Ash	Electrode	%	⩽0.50	⩽0.50	⩽0.20	⩽0.20	0.05-0.15	0.05-0.15
Ash	Nipple	%	⩽0.50	⩽0.50	⩽0.20	⩽0.20	0.05-0.15	0.05-0.15
Real density	Electrode	g/cm³	--	--	2.21-2.23	2.21-2.23	2.22-2.23	2.22-2.23

Permissible Current Load

Nominal diameter		Cross sectional area	Y8/T4089 Industry standard		XXTC-HP Enterprise standards
			Y8/T4089 Industry standard		Refining Furnace (LF)
			Permissible current load	Current density	Permissible current load	Current density
in	mm	cm²	A	A/cm³	A	A/cm³
10	250	502	8000-13000	16-25	85000-13500	17-27
12	300	720	13000-17400	17-24	13600-18000	19-26
14	350	973	17400-24000	17-24	18270-25200	19-26
16	400	1275	21000-31000	16-24	22050-32550	17-26
18	450	1622	25000-40000	15-24	26250-42000	16-26
20	500	2000	30000-48000	15-24	31500-50400	16-25

Table of HP Dmensions & Weight

Nominal dia		Permissibie range (mm)		Length		Permissibie range (mm)		Standard weight (kg)
in	mm	max	min	in	mm	max	min	T3N	T3L	T4N	T4L
10	250	256	251	72	1800	1900	1700	158	--	160	--
10	250	256	251	80	2000	2100	1900	176	--	178	--
12	300	307	302	72	1800	1900	1700	229	--	231	--
12	300	307	302	84	2100	2200	2000	267	--	269	--
14	350	357	352	72	1800	1900	1700	290	--	293	290
14	350	357	352	84	2100	2200	2000	338	--	342	338
16	400	408	403	60	1500	1600	1400	313	312	317	315
				72	1800	1900	1700	379	378	383	381
				84	2100	2200	2000	442	441	447	445
18	450	460	454	72	1800	1900	1700	475	473	484	480
				84	2100	2200	2000	555	553	563	561
				96	2400	2500	2300	638	636	646	644
20	500	511	505	72	1800	1900	1700	581	--	589	584
				84	2100	2200	2000	684	--	692	687
				96	2400	2500	2300	786	--	784	787

None

Electrode paste (Trpaezium/Cylinder Type)

Electrode paste is an indispensable conductive material used in electric furnace equipment

Large-size Carbon & Graphite Electrode For SAF Furnace

Made of high-quality anthracite and petroleum coke as the main raw materials, through molding

Graphite Electrode For EAF/LF Furnace

Graphite electrodes are mainly made of petroleum coke and needle coke as raw materials

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Dedicating to Supply Premium Carbon & Graphite Product and Service to Customers in Smelting Industry Worldwide。

Lanzhou Jinkaize Industry and Trade Co., Ltd.

Tel:+86-931-8562800　

Fax: +86-931-8562800

Add: Ping'an Road, Haishiwan Town ,

Honggu District , Lanzhou, Gansu , CHINA

Mob: +8613919289703

E-mail:sales@lzjkz.com.cn

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