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Products >> Graphite Electrodes >> Graphite Electrode

  • HP Graphite Electrode
HP Graphite Electrode

HP Graphite Electrode

HP Graphite Electrodes
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Graphite electrodes
Graphite electrode refers to a kind of high temperature resistant graphite conductive material made through processing with needle coke as aggregate and coal pitch as binder. It can be used for electric arc furnace steelmaking, silicon making, yellow phosphorus making, etc. Based on furnace electric current capability, graphite electrodes are classified into different grades accordingly. Among them, HP and UHP graphite electrodes are mainly used for steelmaking high-power and ultra-high power electric furnaces. HP graphite electrode is mainly used for ultra high power electric arc furnaces with the current density range of 18–25 A/cm2.
Electric Arc Furnace (EAF)
DC electric arc furnace
AC electric arc furnace
Submerged arc furnace
Ladle Furnace (LF)

 

Advantage
● Anti-oxidation treatment for longevity.
● High-purity, high-density, strong chemical stability.
● Resistant to cracking & spalling.
● High resistance to oxidation and thermal shock.
● High mechanical strength, low electrical resistance.
● High machining accuracy, good surface finishing.

 

Specification

Item

Unit

HP Nominal Diameter(mm)

HP Nominal Diameter(mm)

 

 YB/T4089 Industry Standard

 Enterprise Standard

 

300-400

450-500

550-700

300-400

450-500

550-700

 
 

LSR≤

Electrode

μΩ.M

7.0

7.5

7.5

6.2

6.2

6.2

 

Nipple

6.3

6.3

6.3

4.3

4.3

4.3

 

Flexural Strength ≥

Electrode

Mpa

10.5

10.0

8.5

11.0

10.5

9.0

 

Nipple

17.0

17.0

17.0

18.0

18.0

18.0

 

Elastic Modulus ≤

Electrode

Gpa

14.0

14.0

14.0

9.0

9.0

9.0

 

Nipple

16.00

16.00

16.00

13.00

13.00

13.00

 

Bulk Density ≥

Electrode

g/cm³

1.60

1.60

1.60

1.67

1.67

1.67

 

Nipple

1.72

1.72

1.72

1.77

1.77

1.77

 

CTE ≤

Electrode

10-6/

2.4

2.4

2.4

2.0

2.0

2.0

 

Nipple

2.2

2.2

2.2

1.8

1.8

1.8

 

Ash ≤

%

0.5

0.5

0.5

0.2

0.2

0.2

 

Allowed Current Load

YB/T4089 Industry Standard

Enterprise Standard

LF

Nominal Dia

Nominal Dia

Cross Sectional Area

Permissible Current Load

Current Density

Permissible Current Load

Current Density

in

mm

cm2

A

A/cm2

A

A/cm2

14

350

937

17400-24000

17-27

18270-25200

19-26

16

400

1275

21000-31000

16-24

22050-32550

17-26

18

450

1622

25000-40000

15-24

26250-42000

16-26

20

500

2000

30000-48000

15-24

31500-50400

16-25

22

550

2427

34000-53000

14-22

-

 

24

600

2892

38000-58000

13-21

-

 

28

700

3935

45000-72000

12-19

-

 

 

HP Graphite Graphite Electrode Weight

HP Graphite Electrodes

Reference Weight

Nominal Dia

Nominal Dia

Length

T3N

T3L

T4N

T4L

in

mm

mm

kg

kg

kg

kg

14

350

1800

290

-

293

290

14

350

2100

338

-

342

338

16

400

1800

379

378

383

381

16

400

2100

442

441

447

444

18

450

1800

475

473

484

480

18

450

2100

555

553

563

561

18

450

2400

638

636

646

644

20

500

1800

581

-

589

584

20

500

2100

684

-

692

687

20

500

2400

786

-

784

789

22

550

2100

-

-

-

825

22

550

2400

-

-

-

949

22

550

2700

-

-

-

1073

24

600

2400

-

-

1140

1132

24

600

2700

-

-

1287

1279

28

700

2400

-

-

-

1532

28

700

2700

-

-

-

1733

 

Package
The graphite electrode is packed in wooden crates, and the nipples are packed in wooden cases or pre-set in the electrodes. Electrodes would be covered with polythene sheet to protect the same from dust and moisture, and fasten with steel strips, which is good looking and firm. Proper and safe seaworthy packing, easy for forklift handling. Necessary measures would be provided to avoid possible damages to nipple threads-such as protective foam and rubber caps.

 

Nominal Diameter

Pallet

Electrode Packing

Electrode Preset Nipple Packing

Appr N.W.

Dimension

Appr N.W.

Dimension

mm

inch

pcs

kg

mm

kg

mm

200X1600

8X63

9

750

1700X1070X480

770

1800X1070X480

200X1700

8X67

9

800

1800X1070X480

820

1900X1070X480

250X1700

10X67

3

425

1800X820X350

438

1910X820X350

250X1800

10X71

3

450

1900X820X350

465

2010X820X350

300X1800

12X71

3

630

1900X970X400

650

2100X970X400

350X1800

14X71

3

860

1900X1120X450

885

2100X1120X450

400X1800

16X71

3

1120

1900X1270X500

1165

2100X1280X500

400X2100

16X83

3

1300

2200x1270x500

1345

2400X1280X500

450X1800

18X71

2

950

1900x970x550

990

2100X970X550

450X2100

18X83

2

1100

2200x970x550

1140

2400X970X550

500X1800

20X71

2

1200

1900X1070X600

1255

2150X1070X600

500X2100

20X83

2

1400

2200X1070X600

1455

2450X1070X600

550X2100

22X83

2

1690

2200X1170X650

1760

2450X1170X650

550X2400

22X95

2

1940

2500X1170X650

2010

2750X1170X650

600X2100

24X83

2

2000

2200X1270X500

2080

2450X1270X700

600X2400

24X95

2

2300

2500X1270X700

2380

2750X1270X700

 

Application



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