UHP 550 550*1800mm, 550*2100mm, 550*2700mm
UHP Graphite Electrode / Ultra High Powder Graphite Electrodes UHP 550 Grpahite Electrodes

1. Introduction :

UHP graphite electrode is used for steel recycling in electric bow furnace industry. Its independent part is high-value acerate leaf coke, which is made of petroleum or char mariner. The graphite electrode is machined in a cylindrical shape and a thread area is machined at each goal. In this means, the graphite electrode can be assembled into an electrode column using an electrode connection.

In order to meet the requirements of higher work efficiency and lower sum monetary value, large capacity ultra-high baron bow furnace is becoming more and more democratic. consequently, UHP graphite electrodes with a diameter of more than 500 millimeter will dominate the market

Production processing 600-4
2. Features

  • high stream resistance and high discharge pace .
  • good dimensional stability and not comfortable to deform.
  • resistance to cracking and spalling .
  • gamey oxidation resistance and thermal shock resistance .
  • high mechanical force and low electric resistance .
  • high machine preciseness and good come on ending .
  • uniform structure, good conduction and thermal conduction

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.
( 1 ) regular office graphite electrode

It is allowed to use graphite electrode with current density lower than 17a / cm2, which is chiefly used in ordinary power electric furnaces for steelmaking, silicon smelt, scandalmongering morning star smelt, etc.

( 2 ) oxidation tolerant coated graphite electrode

Graphite electrode coated with a level 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 serve biography 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 exemplar, in a steelmaking plant, based on the consumption of 35pcs graphite electrodes per workweek and 165 refining furnaces in the chief 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 long ton of ultra-high ability electrode per year, USD 459,000 can be saved.

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

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

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

This technology is hush in the research and exploitation stage in China, and some domestic manufacturers have besides begun to produce it. It has been widely used in Japan and other develop countries. At present, there are besides companies specializing in importing this anti-oxidation protective coat in China.

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

( 4 ) Ultra high power graphite electrode. UHP Graphite electrodes with a current concentration greater than 25A / cm2 are allowed. It is chiefly used for ultra-high power steelmaking electric discharge furnace.
石墨电极用途
4. Nipple

3TPI/T4L/T4N Or Customized
electrode Nipple
5.  Product Parameters

graphite electrode with wooden case
Graphite Electrode More specification and Details :  For following just for your reference  :
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

Items unconstipated power ( RP ) high baron ( HP ) Ultrahigh office ( UHP )
⌽200-300 ⌽350-600 ⌽700 ⌽200-400 ⌽450-600 ⌽700 ⌽250-400 ⌽450-600 ⌽700
ResistanceμΩm(Max) electrode 7.5 8.0 6.5 7.0 5.5 5.5
nipple 6.0 6.5 5.0 5.5 3.8 3.6
BulkDensityg/cm3(Min) electrode 1.53 1.52 1.53 1.62 1.60 1.62 1.67 1.66 1.66
nipple 1.69 1.68 1.73 1.72 1.75 1.78
BendingStrengthMpa(Min) electrode 8.5 7.0 6.5 10.5 9.8 10.0 11.0 11.0
nipple 15.0 15.0 16.0 16.0 20.0 20.0
Young’smodulusGpa(Max) electrode 9.3 9.0 12.0 12.0 14.0 14.0
nipple 14.0 14.0 16.0 16.0 18.0 22.0
Ash % (Max) electrode 0.5 0.5 0.3 0.3 0.3 0.3
nipple 0.5 0.5 0.3 0.3 0.3 0.3
CTE ( 100-600℃ ) ×10-6/℃ electrode 2.9 2.9 2.4 2.4 1.5 1.4
nipple 2.8 2.8 2.2 2.2 1.4 1.2

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 extra specification requirements, both sides consult supply & demand.
For more detail Sizes and Specs : Uhp Graphite electrode, Graphite electrodes, Hp Graphite Electrode, Rp Graphite electrode           φ200mm-700mm   Length 1800mm -2700mm 

Standard sizes of electrode
Specifications ( column inch ) permissible Diameter ( millimeter ) allowable Length ( millimeter )
nominal diameter Max . Min . nominal distance Max . Min .
6 150 154 151 1600 1700 1500
1800 1875 1700
8 200 205 200 1600 1700 1500
1800 1875 1700
9 225 230 225 1600

1700 1500
1800 1875 1700
10 250 256 251 1600 1700 1500
1800 1875 1700
12 300 307 302 1800 1875 1700
14 350 357 352 1600 1700 1500
1800 1875 1700
16 400 409 403 1600 1500 1500
1800 1875 1700
2100 2175 1975
18 450 460 454 1800 1875 1700
2100 2175 1975
2400 2475 2275
20 500 511 505 1800 1875 1700
2100 2175 1975
2400 2475 2275
22 550 562 556 2100 2175 1975
2400 2475 2275
24 600 613 607 2100 2175 1975
2400 2475 2275
2800 2850 2550
28 700 714 708 2400 2475 2275
2800 2850 2550

current Carrying Capacity for Graphite Electrode :

nominal Diameter ( millimeter ) regular power senior high school might Ulra high ability
current Load(A) Current Density(A/cm2 ) current Load(A) Current Density(A/cm2 ) current Load(A) Current Density(A/cm2 )
200 5000-6900 15-21 5500-9000 18-25 ———— ————
225 6100-8600 15-21 6500-10000 18-25 ———— ————
250 7000~10000 14-20 8000~13000 18-25 ———— ————
300 10000~13000 14-18 13000~17400 17-24 15000~22000 20-30
350 13500~18000 14-18 17400~24000 17-24 20000~30000 20-30
400 18000~23500 14-18 21000~31000 16-24 25000~40000 19-30
450 22000~27000 13-17 25000~40000 15-24 32000~45000 19-27
500 25000~32000 13-16 30000~48000 15-24 38000~55000 18-27
550 32000~40000 13-16 37000~57000 15-23 42000~66000 17-26
600 38000~47000 13-16 44000~67000 15-23 49000~88000 17-26
700 48000~59000 12-15 59620~83600 13-18 70000-110000

17-24

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