HanDan ChaoYo Metallurgical Materials Co., Ltd
Home
Products
About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsGraphite Electrodes

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

All Products
Graphite Electrodes (216)
Graphite Powder (35)
Graphite Recarburizer (17)
Graphite Mold (43)
Carbon Blocks (34)
Graphite Crucible (50)
Isostatic Graphite (6)
Carbon Rods (19)
Graphite Anode (3)
I'm Online Chat Now

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

China Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace supplier
Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace supplier Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace supplier

Large Image :  Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

Product Details:

Place of Origin: China
Brand Name: Chaoyo
Certification: QA/QC
Model Number: graphite electrode

Payment & Shipping Terms:

Minimum Order Quantity: 25tons
Packaging Details: wooden pallet
Delivery Time: 10-15days
Payment Terms: TT/LC
Supply Ability: 3000 Metric Ton/Metric Tons per Month
Contact Now
Detailed Product Description
Application: EAF / LF Diameter: 550mm
Length: 1800mm Length Resistance (μΩ.m): ≤6.5
Apparent Density (g/cm³ ): ≥1.65 Thermal Expansion: ≤2.4
Flexural Strength (N/㎡): ≥10.5 Type: Electrode Block
Grade: UHP (Ultra High Power) Connect: 4TPI

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

 

Description:

RP graphite electrode is used in ordinary power electric arc furnaces such as steelmaking, silicon smelting, and yellow phosphorus smelting. Made of petroleum coke and coal pitch as raw materials. It is characterized by low ash content, good electrical conductivity, high temperature resistance, and does not melt or deform under high temperatures. RP graphite electrode as a conductive material in arc metallurgical furnaces for smelting various non-ferrous and rare metals. It can be used at current densities exceeding 17A/cm2.

 

HP graphite electrode is used in a high-power smelting furnace and a low-load to medium-load ladle furnace. Electric arc furnace steelmaking is to introduce current into the steelmaking furnace through electrodes, and the strong current passes through the gas at the lower end of the electrode to generate arc discharge. Then heat generated by the arc is used for eaf steelmaking. It is suitable for High-power electric furnaces with high power, high voltage, and short angle.

 

UHP graphite electrodes are used for electric arc furnace and high-load ladle furnaces. This electrode is characterized by a low electrical resistivity and a high permissible current load. In the electric arc furnace steelmaking process, the current density allowed to pass is greater than 25A/cm2. The production of it uses needle coke as raw material, and multiple impregnation and roasting are used in the production process. With the rapid development of electric furnace steelmaking, high-power and ultra-high-power electric arc furnaces are becoming more popular.

Graphite electrode nipple is important for connecting electrodes in industrial EAF steelmaking processes. They conduct electricity, allowing current to flow through the electrodes. Graphite electrode nipple is available in various diameters and lengths, with the size and shape of the fitting depending on the application. The nipple must be carefully inspected for damage or wear and replaced if necessary. When the graphite electrode leaves the factory, the surface needs to be processed, and the two ends are turned into nipple holes with trapezoidal threads. Each electrode is equipped with a nipple.
 
 
1. Low electric resistance
2. High density
3. Good electrical conductivity
4. High anti-oxidation capability
5. Precise machining accuracy
6. Low sulphur and low ash, not give steel second time impurity

 

Specification

Size of Electrodes:
Norminal Diameter (mm) Actual Diameter (mm) Length (mm)*
mm inch Max Min Low Spot
75 3 78 73 72 1600
100 4 103 98 97 1600
130 5 132 127 126 1600
150 6 154 149 146 1800
200 8 205 200 197 1800
225 9 230 225 222 1800
250 10 256 251 248 1800
300 12 307 302 299 1800
350 14 357 352 349 1800
400 16 409 403 400 1800.2100
450 18 460 454 451 1800.2100
500 20 511 505 502 1800.2100
550 22 562 556 553 2100.2400
600 24 613 607 604 2100.2400

Dimension of Cylinder Nipples:
Norminal Diameter (mm) Size of Nipples (mm) Size of Sockets (mm) Thread (mm)
mm inch D d L D d H a b c
75 3 41.2 0
-0.5		 33.8 0
-0.5		 103.0 0
-1.0		 42.5 +0.50 35.1 +0.50 53.0 +7
0		 8.47 2.37 2.82
100 4 66.7 59.3 135.0 68.0 60.6 69.0
130 5 69.8 62.4 153.0 71.1 63.7 78.0
150 6 88.9 81.5 169.0 90.2 82.8 85.0
200 8 122.2 114.8 203.0 123.5 116.1 103.0
225 9 139.7 128.8 203.0 140.98 130.0 106.0 12.70 3.67 4.32
250 10 152.4 141.5 228.0 154.1 143.2 116.0
300 12 184.2 173.3 254.0 185.9 175.0 129.0
350 14 215.9 205.0 280.0 217.6 206.7 142.0
400 16 244.5 233.6 305.0 246.2 235.3 155.0
450 18 274.3 0
-0.7		 263.4 0
-0.7		 340.0 0
-2 .0		 276.0 +0.70 265.1 +0.70 172.5
500 20 296.0 285.1 375.0 297.7 286.8 190.0

Dimension of 3TPI Conical Nipples:
Norminal Diameter (mm) Size of Nipples (mm) Size of Sockets (mm) Thread (mm)
mm inch D L d 1 d H
225 9 139.7 0
-0.5		 203.2 0-1 90.73 0
-5		 <10 131.27 +0.5
0		 107.6 +7
0		 8.47
250 10 155.57 220.10 103.80 147.14 116.00
300 12 177.17 270.90 116.90 168.73 141.50
350 14 215.90 304.80 150.00 207.47 158.40
400 16 215.9 304.8 150 207.47 158.40
400 16 241.30 338.70 169.80 232.87 175.30
450 18 241.30 338.70 169.80 232.87 175.30
450 18 273.05 355.60 198.70 264.62 183.80
500 20 273.05 355.60 198.70 264.62 183.80
500 20 298.45 372.60 221.30 290.02 192.20

Dimension of 4TPI Conical Nipples:
Norminal Diameter (mm) Size of Nipples (mm) Size of Sockets (mm) Thread (mm)
mm inch D L d 1 d H
75 3 46.04 0
-0.5		 76.20 0
-1		 20.80 0
-5		 <7 39.72 +0.5
0		 44.10 +7
0		 6.35
100 4 69.85 101.60 40.30 63.53 56.80
130 5 79.38 127.00 45.60 73.06 69.50
150 6 92.08 139.70 56.20 85.76 75.90
200 8 122.24 177.80 80.00 115.92 94.90
225 9 139.70 177.80 97.46 133.38 94.90
250 10 152.40 190.50 108.00 146.08 101.30
300 12 177.80 215.90 129.20 171.48 114.00
350 14 203.20 254.00 148.20 196.88 133.00
400 16 222.25 304.80 158.80 215.93 158.40
400 16 222.25 355.60 150.00 215.93 183.80
450 18 241.30 304.80 177.90 234.98 158.40
450 18 241.30 355.60 169.42 234.98 183.80
500 20 269.88 355.60 198.00 263.56 183.80
500 20 269.88 457.20 181.08 263.56 234.60
550 22 298.45 355.60 226.58 292.13 183.80
550 22 298.45 457.20 209.65 292.13 234.60
600 24 317.50 355.60 245.63 311.18 183.30
600 24 317.50 457.20 228.70 311.18 234.60


RP Specifications:
Item Unit Norminal Diameter(mm)
75~130 150~225 250~300 350~500
Electric Resistivity Max Electrode μΩ·m 8.5 9.0 9.0 9.0
Nipples 6.5 6.5 6.5 6.5
Flexural Strength Min Electrode MPa 9.8 9.8 7.8 6.4
Nipples 13.0 13.0 13.0 13.0
Elastic Modulus Max Electrode GPa 9.3 9.3 9.3 9.3
Nipples 14.0 14.0 14.0 14.0
Bulk Density Min Electrode g/cm³ 1.58 1.52 1.52 1.52
Nipples 1.68 1.68 1.68 1.68
C.T.E. Max(100ºC~600ºC) Electrode 10¯6 /ºC 2.9 2.9 2.9 2.9
Nipples 2.7 2.7 2.8 2.8
Ash Max % 0.5 0.5 0.5 0.5

HP Specifications:
Item Unit Norminal Diameter(mm)
200~400 450~500 550~600
Electric Resistivity Max Electrode μΩ·m 6.8 7.5 7.0
Nipples 5.5 5.5 5.0
Flexural Strength Min Electrode MPa 10.5 9.8 10.0
Nipples 14.0 14.0 16.0
Elastic Modulus Max Electrode GPa 12.0 12.0 12.0
Nipples 16.0 16.0 18.0
Bulk Density Min Electrode g/cm³ 1.60 1.60 1.65
Nipples 1.70 1.70 1.75
C.T.E. Max(100ºC~600ºC) Electrode 10¯6 /ºC 2.4 2.4 2.4
Nipples 2.2 2.2 2.2
Ash Max % 0.3 0.3 0.3

UHP Specifications:
Item Unit Norminal Diameter(mm)
300~400 450~500 550~600
Electric Resistivity Max Electrode μΩ·m 6.2 6.3 5.8
Nipples 4.5 4.5 4.0
Flexural Strength Min Electrode MPa 11.5 11.5 11.0
Nipples 20.0 20.0 22.0
Elastic Modulus Max Electrode GPa 14.0 14.0 14.0
Nipples 20.0 20.0 22.0
Bulk Density Min Electrode g/cm³ 1.71 1.70 1.68
Nipples 1.76 1.78 1.80
C.T.E. Max(100ºC~600ºC) Electrode 10¯6 /ºC 1.5 1.5 1.5
Nipples 1.4 1.4 1.3
Ash Max % 0.3 0.3 0.3

Current-Carrying Capacity of RP graphite electrodes
Norminal diameter(mm) Current-Carrying Capacity(A) Current Density(A/cm²)
75 1000~1400 22-31
100 1500~2400 19-30
130 2200~3400 17~26
150 3000~4500 16-25
200 5000~6900 15-21
250 7000~10000 14-20
300 10000~13000 14~18
350 13500~18000 14~18
400 18000~23500 14~18
450 22000~27000 13~17
500 25000~32000 13~16
550 30000~42000 13~16
600 40000~53000 13~16

Current-Carrying Capacity of HP graphite electrodes
Norminal diameter(mm) Current-Carrying Capacity(A) Current Density(A/cm²)
200 5500~9000 18-28
250 8000~13000 18-25
300 13000~17400 17~24
350 17400~24000 17~24
400 21000~31000 16~24
450 25000~40000 15~24
500 30000~48000 15~24
550 44000~58000 15~24
600 52000~67000 15~24

Current-Carrying Capacity of UHP graphite electrodes
Norminal diameter(mm) Current-Carrying Capacity(A) Current Density(A/cm²)
300 15000~22000 20~30
350 20000~30000 20~30
400 25000~40000 19~30
450 32000~45000 19~27
500 38000~55000 18~27
550 45000~70000 18~27
600 50000~97000 18~27

 

 

 

 

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

 

Advantages of Graphite Electrode
* Good oxidation resistance
* High mechanical strength.
* Needle coke content accounts for 80%
* Low electrical resistivity,good electrical conductivity
* Low ash content,Its ash content is controlled within 3%
* Dense and uniform structure,Low graphite electrode consumption
* Annual output of 80,000 tons, timely delivery

Application:
Graphite electrodes are used mainly in ladle furnaces,electric-arc furnace steelmaking,Yellow phosphorus furnace , Industrial silicon furnace or melting copper. They are presently the only products available that have the high levels of electrical conductivity and the capability of sustaining the extremely high levels of heat generated in this demanding environment.High Quality Needle Coke in HP&UHP graphite electrode,ensure the electrode application is perfect. Graphite electrodes are also used to refine steel in ladle furnaces and in other smelting processes.

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

Service
*Our engineers team know all of the EAF, Ladle, and Foundry applications throughout Asia (Include middleast countries),America and Africa.

*Our engineer team will visit our customer's factory every year, to check and analyse the customers' furnace conditions in order to achieve an optimal performance of the graphite electrodes and a decrease of the specific electrode consumption.

*Other services including train employees,performance analysis, storage in our warehouses, inspection of accessories, and monitoring the furnace.

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

 

Quality Assurance & Control
· National Certified Laboratory
· Key testing instruments, including: specific resistor, bulk density meter, elasticmodulus meter, bending strength inspector, ash analysis meter, CTE analysis meter, etc.
· On-time instrument calibration
· On-site properties testing, including:
L-CTE,C-CTE
Specific resistance, bulk density,
Bending strength, ash content, elastic modulus

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

 

Production Application:

  1. Core application in Electric Arc Furnace (EAF) steelmaking (accounting for over 70% of global consumption): Conduct electricity to generate high-temperature electric arcs for melting scrap steel, producing construction steel, automotive steel and specialty steel
  2. Facilitate non-ferrous metal smelting: Smelt metals such as copper, nickel and lead; also used in vacuum remelting of refractory metals like titanium to achieve purification and uniform composition
  3. Produce key industrial materials: Manufacture metallurgical-grade silicon, polysilicon (for solar energy/semiconductors), as well as phosphorus and ferroalloys in submerged arc furnaces
  4. Serve the electrochemical industry: Act as anodes in electrolytic refining of metals like copper and gold for purification, or as current collectors in fuel cells to ensure stable electricity transmission
  5. Support specialized industries: Assist in high-temperature production of glass/ceramics (reducing energy consumption); also used in laboratory high-temperature experiments and electrochemical analysis

 

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

 

Superior Quality Graphite Electrode UHP/HP/RP for Electric Arc Furnace

 

 

 

Tag:

graphite rod,

graphite electrodes

Contact Details
HanDan ChaoYo Metallurgical Materials Co., Ltd

Contact Person: Mr. Devin

Tel: 86-180-31055518

Fax: 86-0310-7372598

Send your inquiry directly to us (0 / 3000)

About Us
Carbon Rods
Carbon Blocks
Isostatic Graphite
Contact Us
Privacy Policy | China graphite rod Supplier. Copyright © 2016 - 2026 HanDan ChaoYo Metallurgical Materials Co., Ltd. All Rights Reserved. Developed by ECER