300-500mm HP graphite electrode,HP Graphite Electrode

300-500mm HP graphite electrode,HP Graphite Electrode,HP Graphite Electrodes For Arc Furnaces,HP Graphite Electrode Manufacture

HP Graphite Electrode

HP Graphite Electrodes For Arc Furnaces

HP Graphite Electrode Manufacture

Electric resistivity : 5.5-6.8

Bending strength: >=10.0

Elastic Modulus: <=13

Bulk density:1.62-1.70

Ash: <=0.3

CTE: 1.80-2.20

High power graphite electrode is a graphite electrode with allowable current density between 18-25A/cm2. HP graphite electrode  mainly used in high power steelmaking electric arc furnace.

Physical and Chemical Index of  Hign Power Graphite Electrode:

Item 

Unit

HP

300~500

550~700

Electric Resistivity 

Electrode

uΩ.m

   

Nipple

 

Bending Strength

Electrode

MPa

≥10.0

≥8.5

Nipple

≥18.0

Modulus of Elasticity

Electrode

GPa

≤13.0

Nipple

≤15.0

Bulk Density

Electrode

g/cm3

 

Nipple

 

Ash Content

Electrode

%

≤0.3

Nipple

The Coefficient of Thermal Expansion(CTE)

Electrode

10-6/℃

 

Nipple

 

 

High Power Graphite Electrode Current Carrying Capacity

Norminal Diameter

HP

Current Carrying Capacity

Current Density

inch

mm

A

A/cm2

12

300

13000~17400

17~24

14

350

17400~24000

17~24

16

400

21000~31000

16~24

18

450

25000~40000

15~24

20

500

30000~48000

15~24

22

550

34000~53000

14~22

24

600

38000~58000

13~21

28

700

45000~72000

12~19

32

800




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