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500mm / 20" SHP GRADE GRAPHITE ELECTRODES

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SHP Grade Dia 500(20" inches ) * Length 1600mm , 1800mm , 1900mm , 2100mm.. 


Graphite Electrode for EAF , Steel Smelting 




SHP Graphite ELectrode with Nipples 

 

SHP Graphite electrodes Parameters
Items Unit  Norminal Diameter
SHP
300/400 450/500 550/600
Electric Resistivity  Electrode μΩm 5.8-6.4 4.5-6.0 4.5-6.2
Nipple 3.8-4.5 3.5-4.5 3.5-4.5
Compressive Strength Electrode MPa 13.0-15.0 12.0-15.0 12.0-15.0
Nipple 18-25 20-27 20-27
Modulus Rate Electrode GPa 10.0-12.0 10.0-12.0 10.0-12.0
Niplle 14.0-18.0 14.0-18.0 14.0-18.0
Bulk density  Electrode g/cm3 1.68-1.74 1.68-1.74 1.68-1.72
Nipple 1.76-1.82 1.78-1.83 1.78-1.84
Ash  Electrode GPa ≤0.2 ≤0.2 ≤0.2
Nipple
Coef. Thermal Expansion Rate  Electrode  ×10-6/℃ 1.2-1.8 1.2-1.8 1.2-1.8
Nipple  1.0-1.4 1.0-1.4 1.0-1.4
Real Density  Electrode g/cm3 2.22-2.44 2.22-2.23 2.22-2.23

SHP Graphite Electrode Dimension Tolerance 

SHP GRAPHITE ELECTRODE DIMENSION TOLERANCE
Diameter(mm) Length(mm)
Norminal Diameter Diameter Norminal

Tolerance allow

(mm) (in) max min mm Short length 
300 12 307 302 1600
1800
Length  max min
350 14 357 352 ±100 -100 -275
400 16 409 403
450 18 460 454
500 20 511 505 1600/1800/2000/2200
1800/2000/2200
1800/2000/2200/2400
1800/2000/2200
1800/2000/2200
±100 -100 -275
550 22 556 553
600 24 613 607


SHP Graphite Electrode Current Allowable 

Norminal Diameter  Current Allowable(EAF) Current Density(A/cm2 Current Allowable (LC) Cureent density(A/cm2
mm in
350 14 18000-26000 19-26 21000-31000 22-31
400 16 23000-35000 19-22 26000-38000 21-31
450 18 34000-42000 22-28 36000-48000 23-30
500 20 41000-51000 21-27 46000-54000 23-27
550 22 51000-62000 21-26 —— ——
600 24 60000-70000 21-25 ——


Graphite Electrode Features

  • High Temperature Strength

  • Low Thermal Expansion

  • Excellent Thermal and Electrical Conductivity

  • Good Machinability


HP , UHP Graphite Electrodes With Nipples  


 1. XINGSHI Graphite Introduction .Introduction :


SHP high power graphite electrode is a product between high power and ultra-high power electrode. It is a folk name. There is no quasi ultra-high power model in the actual product classification.


Compared with the raw material ratio of ultra-high power graphite electrode, our quasi ultra-high power graphite electrode has less needle coke ratio, so as to reduce the cost. It is well used in ultra-high power electric arc furnace and refining furnace.


2. Features


  • High current resistance and high discharge rate.

  • Good dimensional stability and not easy to deform.

  • Resistance to cracking and spalling.

  • High oxidation resistance and thermal shock resistance.

  • High mechanical strength and low resistance.

  • High machining precision and good surface finish.

  • Uniform structure, good conductivity and thermal conductivity


3. Application


Graphite electrode is widely used in the production of alloy steel, metal and other non-metallic materials.

DC electric arc furnace.

AC arc furnace.

Submerged arc furnace.

Ladle furnace.


Steel Smelting 

FerroAlloy furnace 

Calcium Carbide Furnace 

Silicon Metal Furnace


(1) Regular  power graphite electrode

It is allowed to use graphite electrode with current density lower than 17a / cm2, which is mainly used in ordinary power electric furnaces for steelmaking, silicon smelting, yellow phosphorus smelting, etc.

(2) Oxidation resistant coated graphite electrode

Graphite electrode coated with a layer of antioxidant protective layer (graphite electrode antioxidant). Form a protective layer that can conduct electricity and resist high-temperature oxidation, reduce the electrode consumption during steelmaking (19% ~ 50%), prolong the service life of the electrode (22% ~ 60%), and reduce the electric energy consumption of the electrode. The popularization and use of this technology can bring such economic and social effects:

① The unit consumption of graphite electrode is less, and the production cost is reduced to a certain extent. For example, in a steelmaking plant, based on the consumption of 35pcs graphite electrodes per week and 165 refining furnaces in the primary LF refining furnace without shutdown throughout the year, 373pcs graphite electrodes can be saved every year after the graphite electrode oxidation resistance technology is adopted

(153 tons) electrode, calculated at 3000USD per ton of ultra-high power electrode per year, USD 459,000 can be saved.

② The graphite electrode consumes less power, saves the unit steelmaking power consumption, saves the production cost and saves energy!

③ Because the graphite electrode is changed less times, the amount of labor and risk coefficient of operators are reduced, and the production efficiency is improved.

④ Graphite electrode is a low consumption and low pollution product. Today, when energy conservation, emission reduction and environmental protection are advocated, it has very important social significance.

This technology is still in the research and development stage in China, and some domestic manufacturers have also begun to produce it. It has been widely used in Japan and other developed countries. At present, there are also companies specializing in importing this anti-oxidation protective coating in China.

(3) High power graphite electrode. Graphite electrode with current density of 18 ~ 25A / cm2 is allowed to be used, which is mainly used in high-power electric arc furnace for steelmaking.

(4) Ultra high power graphite electrode.  UHP Graphite electrodes with a current density greater than 25A / cm2 are allowed. It is mainly used for ultra-high power steelmaking electric arc furnace.


BEST -SELLING IN MARKETING :


Items Unit UHP HP RP
φ300-φ500
φ550-φ800
φ300-φ800
φ300-φ800
Resistivity

Electrode

Nipple

μΩm

μΩm

4.8-5.8

3.5-4.0

4.6-5.8

3.5-4.0

5.8-6.6

3.5-4.0

7.0-10.0

4.0-4.5

Modulus of Rupture

Electrode

Nipple

Mpa

Mpa

10.0-14.0

20.0-24.0

10.0-14.0

22.0-26.0

10.0-13.0

20.0-23.0

8.0-10.0

19.0-22.0

Young's Modulus

Electrode

Nipple

Gpa

Gpa

9.0-13.0

15.0-18.0

10.0-14.0

16.0-19.0

8.0-12.0

14.0-16.0

7.0-9.3

12.0-14.0

Bulk Density

Electrode

Nipple

g/c㎥

g/c㎥

1.68-1.74

1.78-1.82

1.70-1.74

1.80-1.84

1.64-1.68

1.75-1.80

1.53-1.56

1.70-1.74

CTE(100-600℃)

Electrode

Nipple

10-6/

1.10-1.40

0.90-1.20


1.10-1.40

0.90-1.20

1.60-1.90

1.10-1.40

2.20-2.60

2.00-2.50

Ash % 0.3 0.3 0.3 0.5






4. Nipple


3TPI/T4L/T4N Or Customized



5.  Product Show :



1_副本






Graphite Electrode More specification and Details :  For following just for your reference  :

The quality of our product is recognized by the quality examination center of the national metallurgy carbon material sampling analyze to all attain the YB/T4088-2015、YB/T4089-2015、YB/T4090-2015.

Standard Sizes of Electrode :If there are special specification requirements,both sides consult supply & demand.


For more detailed Sizes and Specs : Uhp Graphite electrode , Graphite electrodes , Hp Graphite Electrode , Rp Graphite electrode           φ200mm-700mm   Length 1800mm -2700mm 


Model 

Electric Resistance

μΩ·m

Modulus

Gpa

Compressive Strength 

Mpa

Coef. Thermal Expansion rate 

10-6/℃

Current  Density 


A/cm2

Raw Material  Application Area
RP(Regular Powder Graphite Electrode) 0-9.5 6.0-9.3 6.0-9.3 1.8-2.5 ≤17 Petroleum Coke Steel , Ferroalloys ,Yellow Phosphours 
HP ( High powder Graphite Electrode ) 5.0-7.5 8.0-12.0 8.0-12.0 1.6-2.0 18-25 Petroleum Coke and Needle Coke Steel , Ferroalloys ,Copper 
UHP (Ultra- High Powder Graphite Electrode 4.0-7.5 9.0-14.0 9.0-14.0 1.2-1.5 ≥25 Needle Coke 
Steel , Copper 




For more details ,Kindly click the Button " Contact us " Talk to me on Line  or E-mail: sales@china-xingshi.com   , also Whatsapp ,wechat : +86 13028650772

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