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Qingdao Tennry Carbon Co., Ltd.
Qingdao Tennry Carbon Co., Ltd.
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RP Graphite Electrodes

RP graphite electrodes are manufactured with high-quality low-ash raw materials, including petroleum coke, needle coke and coal tar pitch. Produced through complete standardized procedures of calcination, precise batching, vacuum kneading, compression forming, high-temperature baking, pressure impregnation, graphitization and professional CNC precision finishing, the electrodes feature stable basic performance and cost-effective advantages for conventional industrial smelting.

RP graphite electrodes are characterized by low resistivity, reliable electrical conductivity, low ash content, compact structure, good mechanical strength and stable high-temperature adaptability. They are cost-effective universal conductive materials, widely used in conventional medium and low-power electric arc furnaces, ladle furnaces and submerged arc furnaces for steelmaking, silicon smelting and yellow phosphorus production.


Specifications of RP Graphite Electrodes


Properties



Unit

Nominal Diameter Of Electrode

UHP

HP

RP

300-600 mm

650-800mm

300-800mm

300-800mm

Electric resistivity

Electrode

μΩ.m

4.8-5.8

4.6-5.8

5.8-6.6

7.8-8.8

Nipple

3.8-4.5

3.8-4.5

4.2-5.0

5.0-6.5

Flexural strength

Electrode

Mpa

10.0-14.0

10.0-14.0

10.0-13.0

7.0-12.0

Nipple

20.0-26.0

22.0-26.0

18.0-22.0

15.0-20.0

Young's modulus

Electrode

Gpa

9.0-13.0

10.0-14.0

8.0-12.0

7.0-9.3

Nipple

15.0-18.0

15.0-18.0

14.0-16.0

12.0-14.0

Bulk density

Electrode

≥g/cm3

1.68-1.74

1.70-1.74

1.62-1.66

1.53-1.56

Nipple

1.77-1.82

1.78-1.84

1.74-1.80

1.70-1.74

CTE(100-600℃）

Electrode

×10-6/℃

1.1-1.4

1.1-1.4

1.6-1.9

2.2-2.6

Nipple

0.9-1.2

0.9-1.2

1.1-1.4

2.0-2.5

Ash


0.3

0.3

0.3

0.5


Products

Features of RP Graphite Electrodes

Stable Conventional Current Load Capacity
Reliable Conductive Performance & Cost Efficiency
Stable Structural Performanc
Good High-Temperature Adaptability
Low Impurity Content & Stable Smelting Standard
Features of RP Graphite Electrodes
Stable Conventional Current Load Capacity

RP graphite electrodes support a stable working current density below 17 A/cm², perfectly matching the operating parameters of conventional ordinary-power electric furnaces. It ensures smooth arc striking and steady arc combustion, meeting the daily continuous smelting production demands.


Features of RP Graphite Electrodes
Reliable Conductive Performance & Cost Efficiency

With uniform internal structure and stable resistivity, RP electrodes maintain consistent electrical conductivity during long-term conventional current operation. It balances conductive performance and production cost, delivering high cost performance for mass conventional smelting processing.


Features of RP Graphite Electrodes
Stable Structural Performanc

Adopting mature calcination, forming and conventional graphitization processes, the product has compact texture and uniform density. It possesses qualified flexural strength and structural stability, resisting conventional mechanical impact and high-temperature furnace stress to avoid cracking and breakage in daily operation.


Features of RP Graphite Electrodes
Good High-Temperature Adaptability

RP electrodes maintain stable physical performance under conventional high-temperature smelting conditions. With qualified oxidation resistance, it controls normal electrode consumption, reduces frequent replacement frequency and lowers the overall operating cost of conventional furnace production.


Features of RP Graphite Electrodes
Low Impurity Content & Stable Smelting Standard

Selected from low-ash high-quality carbon raw materials, the electrode has low impurity content. It will not produce excessive impurity precipitation during smelting, ensuring stable chemical composition and qualified quality of molten steel and smelting finished products.


RP Graphite Electrodes Technology

  • RP graphite electrodes adopt mature and stable carbon material formula and standardized production technology. Through strictly controlled raw material calcination, scientific batching, uniform kneading and integral compression forming, the material forms a stable and uniform internal structure.

  • Combined with conventional high-temperature graphitization and precise CNC machining, the finished products achieve standard dimensional tolerance and good assembly performance, fully adapting to the continuous and stable operation of various conventional industrial electric furnaces.

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