HP Graphite Electrodes

Specification

Current density＞18A/cm³, ≤25A/cm³

HP graphite electrode is a high-performance graphite electrode commonly used in electric arc furnaces during steel smelting and casting processes. HP stands for “high power”, which means that this graphite electrode has good electrical conductivity and thermal stability, and can effectively conduct electrical energy in high-temperature and high-pressure working environments.

HP graphite electrodes are usually made of high-quality graphite materials, which have been specially treated and precision processed to have good mechanical strength and wear resistance. This electrode can withstand high-temperature environments and generate a powerful arc, which is used to heat metal materials to a molten state. At the same time, HP graphite electrodes also have a long service life and stable performance, which can reduce production costs and improve production efficiency.

In the steel industry, HP graphite electrode is a commonly used material and is widely used in the melting and casting processes of electric arc furnaces.

Product Highlights

Good electrical conductivity: HP graphite electrode has good electrical conductivity and can effectively conduct electrical energy and generate a powerful arc for heating metal materials.
High temperature stability: HP graphite electrodes can withstand high temperature environments, are not easy to melt or deform, and have high thermal stability.
High mechanical strength: After special treatment and precision processing, HP 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, HP 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 HP graphite electrodes can reduce production costs and improve production efficiency.

Technical Specification

Technical Specification of HP Graphite Electrode

Diameter		Resistance	Density	Flexure Strength	Elastic Modulus	Ash Content	CTE	Current Load	Current Density
Diameter		(≤, µΩ·m)	(≥, g/cm3)	(≥, MPa)	(≤, GPa)	(≤, %)	(100 °C – 600 °C)(≤, 10-6/°C)	(A)	(A/cm2)
8	200	6.5	1.62	10.5	12	0.3	2.4	5500–9000	18–25
9	225	6.5	1.62	10.5	12	0.3	2.4	6500–10000	18–25
10	250	6.5	1.62	10.5	12	0.3	2.4	8000–13000	18–25
12	300	6.5	1.62	10.5	12	0.3	2.4	13000–17400	17–24
14	350	6.5	1.62	10.5	12	0.3	2.4	17400–24000	17–24
16	400	6.5	1.62	10.5	12	0.3	2.4	21000–31000	16–24
18	450	6.5	1.6	9.8	12	0.3	2.4	25000–40000	15–24
20	500	6.5	1.6	9.8	12	0.3	2.4	30000–48000	15–24
22	550	6.5	1.6	9.8	12	0.3	2.4	37000–57000	15–23
24	600	6.5	1.6	9.8	12	0.3	2.4	44000–67000	15–23

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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