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UHP550mm Is Used in Iron Steel Smelting And Fused Magnesia

UHP550mm Is Used in Iron Steel Smelting And Fused Magnesia

Products Description UHP550mm can be used in iron and steel smelting as well as the production of fused magnesia. In the steel industry, UHP550mm graphite electrodes are used for steelmaking in electric arc furnaces (EAF). EAF is an important component of modern steel production, especially in...

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Products Description

UHP550mm can be used in iron and steel smelting as well as the production of fused magnesia. In the steel industry, UHP550mm graphite electrodes are used for steelmaking in electric arc furnaces (EAF).

EAF is an important component of modern steel production, especially in the recycling of scrap steel. The high temperature generated by the electric arc can melt scrap steel and other raw materials, facilitating the production of liquid steel.

Fused magnesia production involves melting magnesite (a mineral composed of magnesium carbonate) at high temperatures in an electric arc furnace to produce permanent white mica. It can be applied in refractory materials, ceramics, and chemical industries.

UHP550mm graphite electrodes are able to withstand harsh conditions and high energy requirements during iron and steel smelting as well as fused magnesia production processes. UHP550mm plays a significant role in two different industrial processes: steel manufacturing (iron and steel smelting) and permanent white mica production.

Physical & chemical properties of UHP graphite electrode and nipples

HS CODE:8545110000

Item	Unit	Diameter 550（556-562）mm
		UHP Graphite Electrode		Nipple
		Guaranteed	Typical	Guaranteed	Typical
Resistivity ≤	*UΩm**	6.3	5.0-6.0	5.3	3.8-4.5
Flexural strength≥	MPA	10.5	11.0-13.0	20	20-25
Young’s modulus≤	GPA	14	8-12	20	12-16
Bulk density≥	G/CM3	1.66	1.68-1.73	1.75	1.76-1.82
CTE(100 ℃-600℃) ≤	10-6/℃	1.5	1.3-1.5	1.4	1.0-1.3
ASH ≤	%	0.5	0.2-0.4	0.5	0.2-0.4

Note：We can provide lengths of 2000/2200/2400mm for UHP500 graphite electrodes. Of course, we can also customize the length according to customer requirements.

Recommended current load of electrode

Grade	Inch	Nominal Dia	Allowable current		Current density
Grade	Inch	Nominal Dia	AC	DC	AC	DC
UHP Graphite Electrode	10	250	10000-13000	-	14-18	-
	12	300	13500-20000	-	14-18	-
	14	350	20000-32000	-	20-32	-
	16	400	25000-41000	-	20-32	-
	18	450	32000-49000	-	20-30	-
	20	500	40000-60000	-	20-30	-
	22	550	45000-68000	49000-78000	18-28	20-32
	24	600	52000-81000	58000-93000	18-28	20-32
	26	650	60000-85000	64000-100000	18-28	20-32
	28	700	71000-100000	79000-120000	18-27	20-30
	30	750	82000-123000	91000-135000	18-27	20-30

Recommended current load of electrode

Recommended Tighening Torque

Electorde Dia	Torque
250	800
300	900
350	1300
400	1550
450	1850
500	2400
550	2750
600	3800
650	4300
700	5200
750	6800

Application of UHP550mm in steel smelting and fused magnesia Stelmaking:

UHP550mm graphite electrode is used in EAF for the recycling of especially scrap steel. By inserting UHP550mm electrode into the EAF and providing the required electrical energy, it creates and maintains an arc to generate high temperatures, melting the scrap steel and other raw materials, thus achieving the production of molten steel.

Magnesia fusion production:

Heating magnesite (magnesium carbonate) in an electric arc furnace can produce fused magnesia. Fused magnesia is widely used in refractory materials, ceramics, and other industries.

It plays a crucial role in both steelmaking process and fused magnesia production. Its application ensures efficient melting of raw materials and fine processing, resulting in high-quality steel and fused magnesia materials used in various industrial applications.