High Quality China Manufacturer for Eaf Arc Furnace UHP400 UHP450 UHP500 UHP550 UHP600 Graphite Electrode with Nipple
Product Description
Product Description
Product Description
Products Features and Applications Kimwan Graphite Electrodes including Regular Power(RP) and High Power(HP) are widely used in steel-making of electrical arc furnace and smelt of yellow phosphorous industrial, silicon, brown corundum in mine heating furnace.
Grades Available: RP, HP, SHP, UHP graphite electrodes and nipples.
Special Treatment: Anti-oxidation impregnation treatment to prolong graphite electrodes service life and reduce consumption rate.
The graphite electrode is mainly made of
petroleum coke
and
needle coke
, and the coal bitumen is used as a binder. It is made by
calcination, compounding, kneading, forming, baking, graphitization
and
machining
.
According to its quality indicators, graphite electrodes can be divided into RP graphite electrodes , HP graphite electrodes and UHP graphite electrodes . HP grade graphite electrode add 30% Japan needle coke, UHP grade graphite electrode use 100% needle coke. Widely used in LF, EAF for steel making industry, Non-ferrous industry, silicon and phosphorus industry.
|
UH P Size and Tolerance |
|||||||
|
Diameter (mm) |
Length (mm) |
||||||
| Nominal diameter | Actual diameter |
N ominal length |
Tolerance |
Short feet length |
|||
| mm | inch | max | min |
mm |
mm |
max |
min |
| 200 | 8 | 209 | 203 |
1800/2000/ 2200/ 2300 2400/2700 |
± 100 |
-100
|
-275
|
| 250 | 10 | 258 | 252 | ||||
| 300 | 12 | 307 | 302 | ||||
| 350 | 14 | 357 | 352 | ||||
| 400 | 16 | 409 | 403 | ||||
| 450 | 18 | 460 | 454 | ||||
| 500 | 20 | 511 | 505 | ||||
| 550 | 22 | 556 | 553 | ||||
| 600 | 24 | 613 | 607 | ||||
| 700 | 28 |
714 |
708 |
||||
|
Physical and Chemical Index of UHP |
|||||
|
Items |
unit |
Diameter: 200-700mm |
|||
|
Standard |
Test data |
||||
|
Electrode |
Nipple |
Electrode |
Nipple |
||
|
Electrical resistance |
μΩm |
5.5- 6. 0 |
5. 0 |
5.0- 5.8 |
4.5 |
|
Flexure strength |
Mpa |
10.5 |
16 |
14-16 |
18-20 |
|
Modulus of elasticity |
GPa |
14 |
18 |
12 |
14 |
|
Ash content |
% |
0. 2 |
0. 2 |
0. 2 |
0. 2 |
|
Apparent density |
g/cm3 |
1.64-16.5 |
1.70-1.72 |
1.72-1.75 |
1.78 |
|
Factor of expansion(100-600 ºC ) |
x10-6/ ºC |
1.5 |
1.4 |
1.3 |
1.2 |
|
Properties |
UHP
|
HP
|
RP
|
||
|
φ100-500
|
φ550-700
|
φ100-700
|
φ100-700
|
||
|
Resistivity
(uΩm max)
|
Electrode
|
4.8-5.8
|
4.6-5.8
|
5.8-6.6
|
7.0-10.0
|
|
Nipple
|
3.5-4.0
|
3.5-4.0
|
3.5-4.0
|
4.0-4.5
|
|
|
Modulus of Rupture(Mpa)
|
Electrode
|
10.0-14.0
|
10.0-14.0
|
10.0-13.0
|
8.0-10.0
|
|
Nipple
|
20.0-24.0
|
22.0-26.0
|
20.0-23.0
|
19.0-22.0
|
|
|
Young's Modulus(Gpa)
|
Electrode
|
9.0-13.0
|
10.0-14.0
|
8.0-12.0
|
7.0-9.3
|
|
Nipple
|
15.0-18.0
|
16.0-19.0
|
14.0-16.0
|
12.0-14.0
|
|
|
Bulk Density
(g/cm3) min
|
Electrode
|
1.68-1.74
|
1.70-1.74
|
1.64-1.68
|
1.53-1.56
|
|
Nipple
|
1.72-1.82
|
1.80-1.84
|
1.75-1.80
|
1.70-1.74
|
|
|
CTE
(100-600ºC) max
|
Electrode
|
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
|
|
0.2-0.3
|
0.3-0.5
|
||
|
Dia
(mm)
|
RP
|
HP
|
UHP
|
|||
|
Current Load
(A)
|
Current Density
(A/cm3)
|
Current Load
(A)
|
Current Density
(A/cm3)
|
Current Load
(A)
|
Current Density
(A/cm3)
|
|
|
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
|
8100-12200
|
20-30
|
|
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
|
49000-76000
|
17-26
|
|
Lactoferrin
|
tartaric acid
|
|
L-theanine
|
Potassium hydrogen tartrate
|
|
Mixed Tocopherols Concentrate
|
Potassium tartrate sodium
|
|
Potassium Sorbate
|
malic acid
|
|
Sodium benzoate
|
Lactobacillus
|
|
gamma-Cyclodextrin
|
Benzoyl peroxide
|
|
Carmine
|
indigo blue powder
|
|
Amaranth
|
Stevioside
|
|
sodium bicarbonate
|
Sodium pyrosulfite
|
|
Ammonium bicarbonate
|
Sunset yellow food /Sunset yellow FCF
|
|
lemon yellow / tartrazine
|
titanium dioxide
|
|
Compound bentonite
|
taurine
|
|
Sodium cyclamate
|
Dehydroacetic acid
|
|
Citric acid
|
|
|
Sodium tripolyphosphate
|
Alitame
|
|
Guar gum
|
Manganese gluconate
|
|
Diammonium carbonate
|
chitosan oligosaccharide lactate
|
|
monosodium glutamate
|
Sodium dehydroacetate
|
|
Glyceryl monostearate
|
beta-1 3-Glucan
|
|
Lipase
|
Sodium alginate
|
|
Nisin
|
Pancreatin / pancreatic enzyme
|
|
ARABINOGALACTAN
|
Sodium phytate
|
|
Xylitol
|
Gelatin
|
Application
1. When loading the charge into the electric furnace, in order to reduce the impact on the electrode when the charge collapses. The big bulk material should be placed near the central bottom of the electric furnace. At the same time, be careful not to use a large amount of non-conductive objects such as lime to accumulate directly under the electrode which affects the power supplying or breaking the electrode.
2. Should pay attention to the position of the furnace cover. If the furnace cover deviates, the electrode rubs against the furnace cover. It will result in electrode damage and scraping when the electrode rises or falls.
3. When connecting the electrodes, first blow the dust in the nipple hole with compressed air, then align it with the center, and slowly screw it in vertically. The forceused when screwing the nipple into the electrode hole should be smooth and average and the tightening torque should comply with the regulations.
Graphite electrode is mainly used in arc steel-making furnace, ore-smelting electric furnace, resistance furnace, etc., with good thermal conductivity, high temperature resistance, is widely used in metallurgy, machinery, electrical, chemical, textile, national defense and other industrial sectors. Graphite electrode is generally divided into ordinary power graphite electrode, high power graphite electrode and ultra high power graphite electrode.
| Category | No. | Specifications | |
| Diameter (mm) | Length (mm) | ||
| Ultra high power graphite electrode | 1 | 300 | 1800 |
| 2 | 350 | 1800 | |
| 3 | 400 | 2200 | |
| 4 | 450 | 1800 | |
| 5 | 500 | 2200 | |
| 6 | 550 | 2300 | |
| 7 | 600 | 2400 | |
| 8 | 700 | 2700 | |
| Technical Properties of Ultra High Power Graphite Electrodes and nipple | ||||||||
| Item | Classification | Unit | NominalDiameter (mm) | |||||
| 300-400 | 450-500 | 550-700 | ||||||
| Electric Resistivuty( <= ) | Elatrode | μ Ω.m | 6.2 | 6.2 | 6.3 | |||
| Nipple | 5.0 | 5.0 | 4.5 | |||||
| Bending strength( >= ) | Elatrode | Mpa | 10.5 | 10.5 | 11.0 | |||
| Nipple | 18.0 | 18.0 | 20.0 | |||||
| Elastic moduluc( <= ) | Elatrode | Gpa | 14.0 | 14.0 | 14.0 | |||
| Nipple | 18.0 | 18.0 | 22.0 | |||||
| Bulk density( >= ) | Elatrode | g/cm 3 | 1.66 | 1.66 | 1.66 | |||
| Nipple | 1.75 | 1.75 | 1.75 | |||||
| CTE( <= ) | Elatrode | X10 -6 / ºC | 1.5 | 1.5 | 1.4 | |||
| Nipple | 1.4 | 1.4 | 1.2 | |||||
| Ash( <= ) | % | 0.3 | 0.3 | 0.5 | ||||
| Note: Ash content and thermal expansion coefficient are parameter indicators | ||||||||
Production Application:
Packing: Standard Exporting Wooden Pallet, or packing as customer's request.
2. High quality products and strict testing.
3.Rich export experience.
4. We not only provide customers with pre-sales , but also after-sales services, so as to form strategic partnerships with customers. Company Profile
Q:What kind of products do you offer?
A:We offer Graphite Electrode(RP,HP,UHP),GPC,CPC,Graphite block,Isostatical graphite block,semi-finished graphite product
and other graphite products.
Q:Do you accept OEM service?
A:Yes, we do.
Q:What is your delivery time?
A:It depends on the size/complexity of your order and our own production schedule. Usually we provide a faster delivery than the industry's average.
Q:What is your terms of delivery?
A:We accept FOB, CFR, CIF, EXW, etc. You can choose the most convenient way for you.
Q:What is your
Product packaging?
A:We are packed in wooden cases, or according to your requirements.
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