Ultra High Power Graphite Electrodes

Typical Properties of UHP Graphite electrode

Applicable Furnace

Property

AC Furnace

DC Furnace

300-400mmm

12”~16”

450-500mm

18”~20”

550~600mm

22”~24”

600~700mm

24”~28”

Bulk Density

g/cm³

1.65-1.76

1.64-1.75

1.64-1.75

1.64-1.75

Specific Resistance

μΩm

4.2-6.0

4.2-6.0

4.2-6.0

4.2-5.5

Elastic Modulus

Gpa

7-14

7-14

7-14

7-14

Kgf/mm²

700-1400

700-1400

700-1400

700-1400

Flexural Strength

Mpa

10.5-15

10-15

10-15

10-15

Kgf/mm²

105-150

100-150

100-150

100-150

N/cm²

1050-1500

1000-1500

1000-1500

1000-1500

(R.T.~600℃)

Coefficient of
Thermal

Expansion(R.T.~600℃)

*10^-6/℃

1.0-1.5

1.0-1.5

1.0-1.5

1.0-1.4

Real Density

g/cm³

2.20-2.23

2.20-2.23

2.20-2.23

2.20-2.23

Porosity

%

20-26

20-27

20-27

20-27

Ash Content

%

≤0.2

≤0.2

≤0.2

≤0.2

Current-
Carrying Capacities of UHP Graphite electrodes

Specifications

Current(A)

Current
Density(A/cm²)

(inch)

(mm)

AC

DC

AC

DC

12

300

18,000-32,000

 

24-43

 

14

350

22,000-39,000

 

22-39

 

16

400

28,000-47,000

 

21-36

 

18

450

34,000-55,000

 

21-33

 

20

500

41,000-63,000

 

20-31

 

22

550

48,000-70,000

65,000-78,000

19-28

26-32

24

600

55,000-80,000

75,000-90,000

19-27

26-31

26

650

69,000-89,000

87,000-104,000

20-26

25-30

28

700

80,000-100,000

100,000-120,000

20-25

25-30