Graphite Electrode

◐Graphite electrodes are mainly used in electric arc furnace. 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 EAF. 

Product Details

1.Introduction

Graphite electrodes are mainly used in electric arc furnace. 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 EAF. Graphite electrodes are also used to refine steel in ladle furnaces and in other smelting processes. Graphite electrodes are divided into 4 Types: RP Graphite electrodes, HP Graphite electrodes, SHP Graphite electrodes, UHP Graphite electrodes.

2.Applications

Steel Production in Electric Arc Furnaces (EAF):

  •  Graphite electrodes are the primary conductive material in EAF, where they transfer electrical energy to melt scrap steel and other raw materials.
  • They can withstand extremely high temperatures (above 3,000°C) and have excellent thermal conductivity, making them ideal for efficient steel production.

Ladle Furnace (LF) Refining:

  •  Used in secondary steel refining processes to adjust the composition and improve the quality of steel.
  •  Helps in removing impurities and controlling the temperature of molten steel before casting.

Silicon and Phosphorus Production:

  •  Graphite electrodes are used in submerged arc furnaces (SAF) for producing industrial silicon, calcium carbide, and yellow phosphorus.
  •  The high-temperature environment of SAF requires electrodes with superior thermal resistance and conductivity.

Other Metallurgical and Chemical Applications:

  •  Used in ferroalloy production, including the manufacture of ferrosilicon, ferromanganese, and other alloys.
  • Employed in certain chemical processes, such as electrolytic aluminum production.

3.Specifications

Diameter and length for all grades:

Diameter mm

Length mm

Nominal Diameter

Actual Diameter

Nominal Length

Allowance

mm

inch

Max

Min

mm

Standard

Short

200

8

205

200

1800

± 100

-275

250

10

256

251

1800

300

12

307

302

1800/2000

350

14

357

352

1800/2000

400

16

409

403

1800/2000

450

18

460

454

2100/2400

500

20

511

505

2100/2400

550

22

562

556

2100/2400

600

24

613

607

2400/2700

650

26

663

657

2400/2700

700

28

714

708

2500/2700

Machining Dimension of Electrode and Nipple

Applicable

Dia.

mm

IEC codeNippleSocket
     
   

Large Dia.

mm

Length

mm

Small Dia.

mm

Socket Depth

mm

       

UHP

SHP

HP

RP

250155T3N155.57220.00147.14116.00
 300177T3N177.16270.90168.73141.50
 350215T3N215.90304.80207.47158.40
 400215T3N215.90304.80207.47158.40
 400241T3N241.30338.70232.87175.30
 450241T3N241.30338.70232.87175.30
 450273T3N273.05355.60264.62183.80
 500273T3N273.05355.60264.62183.80
 500298T3N298.45372.60290.02192.20
 550298T3N298.45372.60290.02192.20

UHP

SHP

HP

RP

200122T4N122.24177.80115.9294.90
 250152T4N152.40190.50146.08101.30
 300177T4N177.80215.90171.48114.00
 350203T4N203.20254.00196.88133.00
 400222T4N222.25304.80215.93158.40
 400222T4L222.25355.60215.93183.80
 450241T4N241.30304.80234.98158.40
 450241T4L241.30355.60234.98183.80
 500269T4N269.88355.60263.56183.80
 500269T4L269.88457.20263.56234.60
 550298T4N298.45355.60292.13183.80
 550298T4L298.45457.20292.13234.60
 600317T4N317.50355.60311.18183.80
 600317T4L317.50457.20311.18234.60
 650355T4N355.60457.20349.28234.60
 650355T4L355.60558.8349.28285.40
 700374T4N374.65457.20368.33234.60
 700374T4L374.65558.80368.33285.40

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