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Contact: Vicky
Company: Shijiazhuang huanan carbon factory
Jicun,yuanshi country
shijiazhuang 235200
China
Phone: 18633077361
E-Mail: Send Inquiry
Date/Time:  1/14/20 9:53 GMT
 

graphite electrodes in steel making

graphite electrodes in steel making
Mainly used in steelmaking electric arc furnace, refining furnace, industrial
silicon furnace, yellow phosphorus furnace, corundum furnace, etc., as conductive
usage.
Graphite electrode series products are made of high quality carbon materials.The
main products are: RP graphite electrode, smelting furnace shaped carbon block,
impregnated graphite electrode, high power graphite electrode, graphite crucible,
electrode paste, recarburizer, and non-standard specifications of shaped carbon
products.
PRODUCT DESCRIPTION
NAME: Graphite Electrode
MODEL: 400mm
Introduction
The graphite electrode is mainly made of petroleum coke and needle coke, and the
coal asphalt is used as a binder. It is made by calcination, distributing,
kneading, forming, roasting, graphitization and machining. It's a conductor which
release electric energy in the form of electric arc in the electric arc furnace
heats and melts the material. the charge can be divided into a regular power
graphite electrode, a high power graphite electrode and an ultra high power
graphite electrode according to its quality index. The main raw material for
graphite electrode production is petroleum coke. The regular power graphite
electrode can be added with a small amount of pitch coke. The sulfur content of
petroleum coke and pitch coke cannot exceed 0.5%. Needle coke is also required for
the production of high power or ultra high power graphite electrodes.
China graphite electrodes factory:Shijiazhuang huanan carbon factory
Advantage
The advantage of graphite electrode is that it is easy to process, the electricity
discharge processing rate is high, and the graphite loss is small.
Production characteristics
The production period is long. The production period of regular power graphite
electrodes is about 45 days, the production period of ultra high power graphite
electrodes is more than 70 days, and the production period of graphite electrode
joints (nipples) requiring multiple impregnation is more longer.
petroleum coke graphite electrode Application:
Mainly used in electric arc steelmaking furnaces, refining furnaces, industrial
silicon furnaces, yellow phosphorus furnaces, electric resistance furnaces, etc.,
as conductive usage. The graphite electrode blank is also used to process a
variety of shaped graphite products such as enamel, mold, boat and heating
element.
Technical Properties of Graphite Electrodes & Nipples
Item Unit RP Graphite Electrodes

Specific Resistance ≤ Electrodes (E) μΩ.m 8.5
Nipple (N) 8.2
Flexural Strength ≥ Electrodes (E) MPa 9.8
Nipple (N) 13.0
Elastic Modulus ≤ Electrodes (E) GPa 9.3
Nipple (N) 14.0
Bulk Density ≥ Electrodes (E) ɡ/㎝³ 1.58
Nipple (N) 1.63
100-600(C.T.E.) ≤ Electrodes (E) 10-6/℃ 2.9
Nipple (N) 2.7
Ash Content ≤ Electrodes (E) % 0.5
Nipple (N) 0.5
Real Density ≥ Electrodes (E) ɡ/㎝³ 2.18
Nipple (N) 2.2
Allowable Current of Graphite Electrodes
Norminal
Diameter RP Graphite Electrode
Allowable Current
mm in A A/cm2
75 3 1000-1400 22-31
100 4 1500-2400 19-30
130 5.2 2200-3400 17-26
150 6 3000-4500 16-25
175 7 4000-5500 16-22
200 8 500-6900 16-21
225 9 6000-8200 15-20
250 10 7000-10000 14-20
300 12 10000-13000 14-18
350 14 13500-18000 14-18
400 16 18000-23500 14-18
Size & Dviation of Graphite Electrode
(Unit):mm
Norminal
 Diameter Actual Diameters Length
mm in Max. Min. Black Part 
Min. Standard Allow Deviation Allow Ruler 
Deviation
75 3 78 73 72 1000 +/-50 -50
-225
100 4 103 98 97 1200 +/-50 -50
-225
130 5.2 132 127 126 1200 +/-50 -50
-225
150 6 154 149 146 1600 +/-100 -100
-275
175 7 179 174 171 1600 +/-100 -100
-275
200 8 205 200 197 1600 +/-100 -100
-275
225 9 230 225 222 1600 +/-100 -100
-275
250 10 256 251 248 1600/1800 +50/-100 -100
-275
300 12 307 302 299 1600/1800 +/-100 -100
-275
350 14 357 352 349 1600/1800 +/-100 -100
-275
400 16 409 403 400 1600/1800 +/-100 -100
-275

Minimum Order: 10 tons

graphite electrodes in steel making
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