Technical Requirement

Item

Common Graphite Electrode

High Power Graphite Electrode

Ultrahigh Power Graphite Electrode

Unit

nominal diameter

nominal diameter
300-500(mm)

nominal diameter
300-500(mm)

75 ¡« 130

150 ¡« 200

250 ¡« 300

400 ¡« 500

Excellent Grade

Grade I

Excellent Grade

Grade I

Excellent Grade

Grade I

Excellent Grade

Grade I

specific resistance ¡Ü

electrode contact

¦Ì¦¸m

8.5

10.0

9.0

11.0

9.0

11.0

9.0

11.0

7
6.5

6.5
5.5

8.5

8.5

8.5

8.5

folding strength¡Ý

electrode contact

MPa

9.8
12.7

9.8
12.7

7.8
12.7

6.4
12.7

9.8
14.0

10.0
15.0

elastic modulus¡Ü

electrode contact

GPa

9.3
13.7

9.3
13.7

9.3
13.7

9.3
13.7

12.0
14.0

14.0
15.0

ash content¡Ü

electrode contact

%

0.5

0.5

0.5

0.5

0.3

0.3

volume density¡Ý

electrode contact

g/cm 3

1.58
1.63

1.52
1.63

1.52
1.68

1.52
1.68

1.60
1.70

1.65
1.70

thermal expansivity¡Ü

electrode contact

10 -6
1/¡ãC

2.9
3.0

2.9
3.0

2.9
3.2

2.9
3.2

2.2
2.4

1.4
1.6


Carbon additive

 

CHEMICAL PROPERTIES %

F.C min

ASH max

V.M max

S max

MOISTURE max

Graphite Scrap

98.5

0.5

1.0

0.05

0.5

97.0

1.0

2.0

0.10

0.5

Calcined petroleum coke

99.0

0.4

0.6

0.5

0.5

98.0

1.0

1.0

1.5

0.5

Carbon Sand

96.0

3.0

1.0

0.2

1.0

93.0

6.0

1.0

0.3

1.0

90.0

8.0

2.0

0.5

3.0

    Carbon products such as  Flake Graphite and Synthetic graphite powder etc.isavailable for supplying at customer,s requirement.

    Other products as user's detail offer.

BACK