graphite electrode

Item

Regular power

High

power

Ultra high power

Unit

φ150-200mm

φ225-350mm

φ400-500mm

Specific electrical resistance (max)

Electrode Nipple

μΩ.m

9.0

7.5

9.0

7.5

9.0

7.5

7.0

5.5

6.0

5.0

Bending

strength (min)

Electrode Nipple

MPa

9.8

13.0

7.8

13.0

6.4

13.0

10.5

14.0

10.5

16.0

Elastic Modulus(max)

Electrode Nipple

GPa

9.3

13.7

9.3

13.7

9.3

13.7

12.0

14.0

10.5

15.0

Bulk density(min)

Electrode Nipple

g/m

1.52

1.63

1.52

1.63

1.52

1.63

1.60

1.70

1.65

1.72

Coefficient of thermal expansion(max)

Electrode Nipple

10-6/°C

2.9

2.7

2.9

2.8

2.9

2.8

2.4

2.2

1.5

1.4

Ash        (max)

%

0.3

0.3

0.3

0.3

0.3