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Graphite Rod





Product Description

Graphite rod is most frequently used in the heating element of high temperature vacuum furnace, and the highest temperature of the graphite rod can reach 3000℃. It’s also widely used in a heat source or heat radiation of high-temperature environments and other various mechanical friction conditions. It has such traits as high thermal conductivity, high thermal stability, temperature shock resistance and excellent electronic property.

Characteristic

1. Good self-lubricating

2. Good resistance to chemical corrosion

3. High density and high chemical strength

4. High thermal and chemical resistance

5. High resistance to thermal shock

6. Proper electrical conductivity

7. Minimum wettability to molten metals and glass

8. Easy to be machining processed; can be manufactured into a variety of geometrical products

Application

Graphite rods are often used for following:

1. Refractory material:

Widely used in the metallurgical industry.

2. Conducting material:

In the electronics industry, widely used for graphite electrode, brush,, etc

3. Wear-resisting material and lubricant:

Use graphite as wear-resisting and lubrication materials, can be 100m/s speed sliding in - 200 ~ 2000 °C temperature range, no or less lubricanting oil.

4. Sealing material:

It can be as sealing ring in the equipment, such as centrifugal pump, hydraulic turbine ,etc.

5. Anticorrosion material:

Widely used in petroleum, chemical, hydrometallurgy departments.

6. Protection materials

Insulation, high temperature resistant, radiation

7. Furnace parts:

Graphite rod is most frequently used in the heating element of high temperature vacuum furnace

Resistance heating elements, induction susceptor, structural elements and charging rods

8. Anodes for the electrolysis of metals.

9. Parts for heat exchangers.

Material index


high pure graphite

Item

Unit

baked twice

baked three time

baked four times

impregnated once

impregnated twice

Impregnated three times

grain size

mm

≤325mesh

≤325mesh

≤325mesh

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

Material 1

Material 2

Max Grain size

mm

0.8

0.8

Bulk Density

g/cm3

≥1.70

≥1.73

Electric Resistance

μΩ.m

≤8.5

≤8

Bending Strength

MPa

≥10

≥12

Compressive Strength

MPa

≥24

≥31

Thermal Conductivity

W/(m.K)

≥120

≥130

C.T.E(100-600)℃

10-6/℃

≤2.5

≤2.5

Ash Content

%

≤0.3

≤0.3


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