GRAPHITE ELECTRODES(1)


Product Catalogue		GRAPHITE ELECTRODES(1)

The product is made from top quality petroleum coke, pitch coke and bituminous coal, with excellent conducting property, compact structure, low elasticity modulus, high strength, low ash content and anti-oxidation characters, and is indispensable to arc furnace (used in steel making) and electrothermic furnace (used in metallurgical and chemical industry).

Cautions of Using Graphite Electrode

When choosing diameters for electric furnace used in steel ¨C making, please refer to current ¨C carrying capacity of graphite electrode.

Avoid putting graphite electrode in the rain and snow, try to dry them before using.

Use special tools for loading and unloading in order to prevent taper from damaging.

Compressed air is needed to blow and clean the taper sockets before connecting new electrode and nipple.

After connecting electrode, try to fix the surface of both ends tightly.

Avoid electrode lifting equipment of electric furnaces be shaken when working in order to avoid nipple loosening.

The clamping apparatus are not allowed to clamp electrode near the nipple socket.

In order to prevent electrode from breaking when unmelted materials inside the furnaces fall down, electrode should be lifted according to the melting situation and the unmelted steel should be pushed into the melting pool.

Technical Specification of Regular power Graphite Electrode:

Item

Unit

Nominal Diameter (mm)

75~130

150~200

250~300

400~500

Top class

First class

Top class

First class

Top class

First class

Top class
First class

Resistivity(max)
                       Electrode

                         Nipple
mW.m

8.5

10.0

9.0

11.0

9.0

11.0

9.0

11.0

8.5

8.5

8.5

8.5

Flexible strength(min)
                     Electrode
                           Nipple

MPa

9.8
12.7

9.8
12.7

7.8
12.7

6.4
12.7

Modulus elasticity(max)
                      Electrode
                         Nipple

GPa

9.3
13.7

9.3
13.7

9.3
13.7

9.3
13.7

Bulk density(min)
                        Electrode
                            Nipple

G/cm³

1.58
1.63

1.52
1.63

1.52
1.68

1.52
1.68

Ash content(max)

%

0.5

0.5

0.5

0.5

CTE max100~600℃
                      Electrode
                             Nipple

10^-6?/font>1/℃

2.9
3.0

2.9
3.0

2.9
3.2

2.9
3.2

Technical Specification of High power Graphite Electrode:

Item	Unit	Nominal Diameter (mm)
Item	Unit	300, 350	400, 450, 500
Resistivity(max) Electrode Nipple	mW.m	7 6.5	7 6.5
Flexible strength(min) Electrode Nipple	MPa	9.8 14.0	9.8 14.0
Modulus elasticity(max) Electrode Nipple	GPa	12.0 14.0	12.0 14.0
Bulk density(min) Electrode Nipple	G/cm³	1.60 1.70	1.60 1.70
Ash content(max)	%	0.3	0.3
CTE max100~600¡æ Electrode Nipple	10^-6¡Á1/¡æ	2.2 2.4	2.2 2.4

Technical Specification of Ultra High power Graphite Electrode:

Item

Unit

Nominal Diameter (mm)

400-600

Resistively(max)                    Electrode
                                                  Nipple

m W .m

6.5
5.5

Flexible strength(min)             Electrode
                                                   Nipple

MPa

10.0
15.0

Modulus elasticity(max)            Electrode
                                                   Nipple

GPa

14.0
15.0

Bulk Density (min)                     Electrode
                                                    Nipple

G/cm³

1.65
1.70

Ash Content Max

%

0.3

CTE max 100~600℃

10^-6?/font>1/℃

1.4
1.6

Technical Specification of Impregnated (High Density) Graphite Electrode:

Item	Unit	Nominal Diameter (mm)
Item	Unit	75~130	150~200	250~300	400~500
Resistivity(max) Electrode Nipple	mW.m	6.5 6.0	7.0 6.5	7.0 6.5	7.0 6.5
Flexible strength(min) Electrode Nipple	MPa	12.0 15.0	11.0 14.0	10.0 14.0	10.0 14.0
Modulus elasticity(max) Electrode Nipple	GPa	12.0 14.0	12.0 14.0	12.0 14.0	12.0 14.0
Bulk density(min) Electrode Nipple	G/cm³	1.64 1.72	1.64 1.72	1.62 1.72	1.60 1.72
Ash content(max)	%	0.3	0.3	0.3	0.3
CTE max100~600℃ Electrode Nipple	10^-6?/font>1/℃	2.9 3.0	2.9 3.0	2.9 3.2	2.9 3.2

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CARBON PALTA GRAPHIT