UHP Graphite Electrode

Specification

Current density＞25A/cm³

UHP graphite electrode is a high-purity, high-performance graphite electrode commonly used in steel smelting and casting processes in electric arc furnaces. UHP stands for “ultra high power”, which means that this graphite electrode has excellent electrical conductivity and thermal stability and can withstand high temperature and high pressure working environments. UHP graphite electrodes are usually made of high-purity graphite materials, which are precision processed and specially treated to have high mechanical strength and wear resistance.

During the steel smelting and casting process, UHP graphite electrodes can effectively conduct electrical energy, generate powerful arcs and high temperatures, thereby heating metal materials to a molten state. This electrode also has a long service life and stable performance, which can reduce production costs and improve production efficiency. Therefore, UHP graphite electrodes are widely used in the steel industry.

Product Highlights

High purity: UHP graphite electrodes are usually made of high-purity graphite material, ensuring good electrical conductivity and thermal stability.
High temperature resistance: UHP graphite electrodes can withstand high temperature environments, are not easy to melt or deform, and have high thermal stability.
Excellent electrical conductivity: UHP graphite electrodes have good electrical conductivity and can effectively conduct electrical energy and generate powerful arcs for heating metal materials.
High mechanical strength: After special treatment and precision processing, UHP graphite electrodes have high mechanical strength and wear resistance, and can withstand high pressure and heavy pressure working environments.
Long life: Due to its high-quality materials and process processing, UHP graphite electrodes have a long service life, which can reduce the frequency of replacement and maintenance.
Reduce production costs: The stability and long life of UHP graphite electrodes can reduce production costs and improve production efficiency.

Technical Specification

Technical Specification of UHP Graphite Electrode

Dia.	Resistance	Density	Flexure Strength	Elastic Modulus	Ash Content	CTE	Current Load	Current Density
(inch)	(≤, µΩ·m)	(≥, g/cm3)	(≥, MPa)	(≤, GPa)	(≤, %)	(100 °C – 600 °C)(≤, 10-6/°C)	(A)	(A/cm2)
10	5.5	1.67	11	14	0.3	1.5	8100–12200	20–30
12	5.5	1.67	11	14	0.3	1.5	15000–22000	20–30
14	5.5	1.67	11	14	0.3	1.5	20000–30000	20–30
16	5.5	1.67	11	14	0.3	1.5	25000–40000	19–30
18	5.5	1.66	11	14	0.3	1.5	32000–45000	19–27
20	5.5	1.66	11	14	0.3	1.4	38000–55000	18–27
22	5.5	1.66	11	14	0.3	1.4	42000–66000	17–26
24	5.5	1.66	11	14	0.3	1.4	49000–76000	17–26

Graphite Electrode Size & Tolerance

Diameter (mm)					Length (mm)
Nominal Diameter		Actual Diameter			Nominal Length	Tolerance	Short Length
(inch)	(mm)	(max.)	(min.)	(rough spot)	Nominal Length	Tolerance	Short Length
10	250	256	251	248	1600/1800	±100	-275
12	300	307	302	299	1600/1800
14	350	357	352	349	1600/1800
16	400	409	403	400	1600/1800/2000/2200
18	450	460	454	451	1600/1800/2000/2200
20	500	511	505	502	1800/2000/2200/2400
22	550	562	556	553	1800/2000/2200/2400
24	600	613	607	604	2000/2200/2400

Specification / Defect Dimension	Nominal Diameter of Graphite Electrode (mm)
Specification / Defect Dimension	300–400	450–600
Diameter (mm)	20–40	30–50
Diameter (mm)	(< 20 mm should be negligible)	(< 30 mm should be negligible)
Depth (mm)	5–10	10–15
Depth (mm)	(< 5 mm should be negligible)	(< 10 mm should be negligible)

Application

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