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400-800-1383
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E-MAIL: postmaster@ozgraphite.com

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Graphite block for electric conduction

Graphite block for electric conduction

Graphite block is made from the domestic petroleum coke and widely used in the metallurgy, machinery, electronics and chemical industry, etc. The graphite block include molded, extruded, vibrated and isostatic. Our main and most preponderant graphite plate is vibrated formed. Our products own the following characteristics: low electric resistance, good electric and thermal conductivity, high oxidation resistance, greater resistance to thermal and mechanical shock, high mechanical strength, high machining accuracy and so on.

Note:

Our graphite block is made from the domestic high quality petroleum coke and needle coke, which is from china national petroleum corporation Daqing ,Jinxi and Fushun petrochemical company, So, we can guarantee the first–level quality.

Process :

Raw material ->Medium crushing / milling ->Screening -> dosing -> kneading-> vibrated molding->impregnation -> baking-> graphitization


The types of the graphite block:

According to the shape, we have square block and round block

According the size, we can produce all kinds of size as our customers’ requirements.

Physical and chemical index

Item

Unit

Isostaic graphite

Grain size

μm

5-22

Bulk density

g/cm3

1.8-1.85

Specific resistance

μΩ.m

15

Bending strength

Mpa

40

Compressive strength

Mpa

85

Shore hardness

65

C.T.E.(100-600)℃

10-6/

4.0-5.2

Modulus of elasticity

Gpa

10-12.5

Ash

%

0.03%


High pure graphite

Item

Unit

Baked twice

Baked three times

Baked four times

Impregnated once

Impregnated twice

Impregnated three time

Grain size

Mm

≤325 mesh

≤325 mesh

≤325 mesh

Bulk density

g/cm3

≥1.68

≥1.78

≥1.85

Specific resistance

μΩ.m

≤14

≤14

≤13

Bending strength

Mpa

≥25

≥40

≥45

Compressive strength

Mpa

≥50

≥60

≥65

Ash content

%

≤0.15

≤0.1

≤0.05


Item

Unit

Guarantee Value

Typical Value

Max Grain Size

mm

0.8

0.8

Bulk Density

g/cm³

1.70

1.73

Specific Resistance

μΩ·m

8.5

7.5

Bending Strength

Mpa

10.0

11.0

Compressive Strength

Mpa

24.0

27.0

Thermal Conductivity

W/(m·k)

120

150

C.T.E(100-600) °C

10-6/°C

2.5

2.2

Ash Content

%

0.3

0.09


Item

Unit

Guarantee Value

Typical Value

Max Grain Size

mm

0.8

0.8

Bulk Density

g/cm³

1.73

1.76

Specific Resistance

μΩ·m

8.0

7.0

Bending Strength

Mpa

12.0

12.5

Compressive Strength

Mpa

31.0

34.0

Thermal Conductivity

W/(m·k)

130

160

C.T.E(100-600) °C

10-6/°C

2.5

2.1

Ash Content

%

0.3

0.09


Item

Unit

Guarantee Value

Typical Value

Max Grain Size

mm

2

2

Bulk Density

g/cm³

1.70

1.75

Specific Resistance

 μΩ·m

8.5

7.5

Bending Strength

Mpa

9.0

9.5

Compressive Strength

Mpa

30.0

31.0

Modulus of elasticity

Gpa

12.0

 9.5

C.T.E(100-600) °C

10-6/°C

2.5

2.3

Ash Content

%

0.3

0.09


Item

Unit

Guarantee Value

Typical Value

Max Grain Size

mm

2

2

Bulk Density

g/cm³

1.58

1.75

Specific Resistance

 μΩ·m

11.5

7.5

Bending Strength

Mpa

6.0

9.5

Compressive Strength

Mpa

18.0

31.0

Modulus of elasticity

Gpa

9.3

 9.5

C.T.E(100-600) °C

10-6/°C

2.5

2.3

Ash Content

%

0.3

0.09

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