Low-Ash-Synthetic-Graphite-Electrodes-For-Sale

Artificial graphite electrode is made of high-quality low ash materials, such as petroleum coke, needle coke and coal pitch.after calcining,burdening,kneading,forming,baking and pressure impregnation, graphitization and then precision machined with professional CNC machining.such of the products own characteristics with low resistivity, good electrical conductivity ,low ash, compact structure,good anti oxidation and high mechanical strength, so it is the best conductive material for electric arc furnace and smelting furnace.

Notes of the use of graphite electrode

1.The electrode holder should be held in the place beyond the security line of the top electrode;otherwise, the electrode would be easily broken.the contact surface between the holder and the electrode should be cleaned up regularly to maintain a good contacting,the cooling jacket of the holder shall be avoided from water leakage.

2.Identify the reasons it there is gap in the electrode junction,do not use them until the gap is eliminated.

3.If there is falling off of nipple bolt when connecting electrodes,it is necessary to complete the nipple bolt.

4.The application of electrode should avoid of tilting operation, particularly , the gr.oup of connected electrodes should not be put horizontally so as to prevent from breaking.

5.When charging materials to the furnace,the bulk materials should be charged to the place of the furnace bottom,so as to minimize the impact of the large furnace materials on the electrodes.

6.The large pieces of insulation materials should be avoided of stacking on the bottom of the electrodes when smelting .so as to prevent from affecting the electrode use,or even broken.

7.Avoid of collapsing the furnace lid when rising or dropping the electrodes,which may result in electrode damage.

8.It is necessary to prevent the steel slag from splashing to the threads of the electrodes or nipple stored in the smelting site,which may damage the precision of the threads.

Properties		Unit	Nominal Diameter Of Electrode
			UHP		HP	RP
			300-600 mm	650-800mm	300-800mm	300-800mm
Electric resistivity	Electrode	μΩ.m	4.8-5.8	4.6-5.8	5.8-6.6	7.8-8.8
Electric resistivity	Nipple		3.8-4.5	3.8-4.5	4.2-5.0	5.0-6.5
Flexural strength	Electrode	Mpa	10.0-14.0	10.0-14.0	10.0-13.0	7.0-12.0
Flexural strength	Nipple		20.0-26.0	22.0-26.0	18.0-22.0	15.0-20.0
Young’s modulus	Electrode	Gpa	9.0-13.0	10.0-14.0	8.0-12.0	7.0-9.3
Young’s modulus	Nipple		15.0-18.0	15.0-18.0	14.0-16.0	12.0-14.0
Bulk density	Electrode	≥g/cm3	1.68-1.74	1.70-1.74	1.62-1.66	1.53-1.56
Bulk density	Nipple		1.77-1.82	1.78-1.84	1.74-1.80	1.70-1.74
CTE(100-600℃）	Electrode	×10^-6^/℃	1.1-1.4	1.1-1.4	1.6-1.9	2.2-2.6
CTE(100-600℃）	Nipple		0.9-1.2	0.9-1.2	1.1-1.4	2.0-2.5
Ash			0.3	0.3	0.3	0.5

Sizes and permissible variation of graphite electrode

Nominal Diameter		Actual Diameter(mm)			Actual Length(mm)
mm	in	Max	Min	Black cover part	Length	Tolerance	Short ruler sizes
200	8	205	200	197	1600 1800	±100	-275
250	10	256	251	248
300	12	307	302	299
350	14	357	352	349
400	16	409	403	400	1600 1800 2000 2200
450	18	460	454	451
500	20	511	505	502
550	22	562	556	553
600	24	613	607	604

Product current carrying capacity table

Nominal Diameter	Current carrying capacity
Nominal Diameter	RP		HP		UHP
mm	A	A/cn2	A	A/cm2	A	A/cm2
200	5000-6900	15-21	5500-9000	18-25
250	7000-10000	14-20	8000-13000	18-25
300	10000-13000	14-18	13000-17400	17-24	15000-22000	20-30
350	13500-18000	14-18	17400-24000	17-24	20000-30000	20-30
400	18000-23500	14-18	21000-31000	16-24	25000-40000	19-30
450	22000-27000	13-17	25000-40000	15-24	32000-45000	19-27
500	25000-32000	13-16	30000-48000	15-24	38000-50000	18-27
550	31000-41000	13-16	37000-58000	15-23	45000-65000	18-27
600	37000-45000	13-16	42000-65000	15-23	52000-75000	18-26

Transportation of graphite electrodes

1.Cover a rain-proof tarpaulin on the graphite electrodes in the course of long-distance transportation.

2.It is important to use a wire rope when lifting the wooden-packaged electrodes with a lifting crance.it is forbidden to lift the electrodes with the steel packaging belts on the wooden-packaged.

3.For the purpose of protecting the electrodes end and threads,it is not allowed to lift an eletrode with a grappling iron hooking the electrode socket.

4.Put slightly when loading and unloading the nipple box so as to prevent damage to the threads.

Packing

Graphite electrode is packaged by wooden cages and nipple is packaged by wooden boxes.graphite electrode and nipple can be packaged together according to the requirements of the customers.the products are protected by waterproof and dustproof plastic inside and fixed by steel bands,fit for road and sea transportation .