Name: Graphite Felt Electrode
Brand: ZhenAn
SKU: 259323049

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Wholesale graphite electrode 200mm 300mm 400mm RP Hp UHP graphite electrode for steel making

Nomina diameter		RP		HP		UHP
Nomina diameter		Current Carrying Capacity	Current Density	Current Carrying Capacity	Current Density	Current Carrying Capacity	Current Density
in	mm	A	A/cm2	A	A/cm2	A	A/cm2
12	300	10000-13000	14-18	13000-17400	17-24	15000-22000	20-30
14	350	13500-18000	14-18	17400-24000	17-24	20000-30000	20-30
16	400	18000-23500	14-18	21000-31000	16-24	25000-40000	19-30
18	450	22000-27000	13-17	25000-40000	15-24	32000-45000	19-27
20	500	25000-32000	13-16	30000-48000	15-24	38000-55000	18-27
22	550	32000-40000	13-16	35000-55000	14-22	42000-64000	17-26
24	600	35000-41000	13-15	41000-61000	14-21	50000-73000	17-25
28	700	39000-48000	10-12	55000-82000	14-21	67000-99000	17-25
32	800	43000-54000	8-10	/	/	/	/

What are the main raw materials for high-power graphite electrodes?

The main raw materials for high-power graphite electrodes are petroleum coke and needle coke, and coal tar pitch is used as a binder. These materials undergo a series of processing processes to finally make graphite electrodes that can efficiently conduct current in electric arc furnaces. The specific introduction is as follows:

Petroleum coke: Petroleum coke is a by-product of crude oil refining, with high carbon content and low impurity content, and is one of the important raw materials for the production of graphite electrodes.

Needle coke: Needle coke is a high-quality coke with high resistivity and low thermal expansion coefficient, which is suitable for the manufacture of graphite electrodes that can withstand high current density.

Coal tar pitch: Coal tar pitch is used as a binder to bond these coke raw materials together to form a uniform electrode structure.

During the production process, these raw materials will undergo multiple steps such as calcination, batching, kneading, pressing, roasting, graphitization and machining to ensure the quality and performance of the product. In addition, different types of graphite electrodes, such as ordinary power, high power and ultra-high power graphite electrodes, are distinguished according to the current density they carry. The characteristic of high-power graphite electrodes is that they can carry higher current density and are suitable for high-power electric arc furnaces, thereby improving steelmaking efficiency.

In short, the production of high-power graphite electrodes is a complex process involving multiple raw materials and processing techniques to ensure their high performance in electric arc furnaces.