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Ultra High Power RP HP UHP Grade 150mm-750mm Graphite Electrode with Nipples
| Place of Origin | China |
|---|---|
| Brand Name | Chaoyo |
| Certification | QA/QC |
| Model Number | graphite electrode |
| Minimum Order Quantity | 25tons |
| Packaging Details | wooden pallet |
| Delivery Time | 10-15days |
| Payment Terms | TT/LC |
| Supply Ability | 3000 Metric Ton/Metric Tons per Month |
Product Details
| Application | EAF / LF | Diameter | 550mm |
|---|---|---|---|
| Length | 1800mm Length | Resistance (μΩ.m) | ≤6.5 |
| Apparent Density (g/cm³ ) | ≥1.65 | Thermal Expansion | ≤2.4 |
| Flexural Strength (N/㎡) | ≥10.5 | Type | Electrode Block |
| Grade | UHP (Ultra High Power) | Connect | 4TPI |
Product Description
Ultra High Power RP HP UHP Grade 150mm-750mm Graphite Electrode with Nipples
Description:
Graphite Electrode is made of high-quality low ash materials, such as petroleum coke, needle coke and coal pitch.after calcining,burdening,kneading,forming,baking and pressure impregnation, graphitization and then precision machined with professional CNC machining.such of the products own characteristics with low resistivity, good electrical conductivity ,low ash, compact structure,good anti oxidation and high mechanical strength, Widely used in LF, EAF for steel making industry, Non-ferrous industry, silicon and phosphorus industry.so it is the best conductive material for electric arc furnace and smelting furnace.
Specification
The Length & Diameter & Permissible Deviation of Graphite Electrode
|
Nominal Diameter
|
Actual Diameter
|
Length (mm)
|
Tolerance
|
||||
|
MM
|
Inch
|
|
Mines
|
The Minimum Size Of The Black Part
|
Length
|
Short Length
|
|
|
75
|
3
|
78
|
73
|
72
|
1400/1600
|
± 100
|
-275
|
|
100
|
4
|
103
|
98
|
97
|
1400/1600
|
||
|
130
|
5
|
132
|
127
|
126
|
1400
|
||
|
150
|
6
|
154
|
149
|
146
|
1400/1600/1800
|
||
|
175
|
7
|
180
|
174
|
172
|
1400/1600
|
||
|
200
|
8
|
205
|
200
|
197
|
1600/1800
|
||
|
225
|
9
|
230
|
225
|
222
|
1600/1800
|
||
|
250
|
10
|
255
|
251
|
248
|
1600/1800
|
||
|
300
|
12
|
307
|
302
|
299
|
1600/1800/2000
|
||
|
350
|
14
|
357
|
352
|
349
|
1600/1800/2000
|
||
|
400
|
16
|
409
|
403
|
400
|
1600/1800/2000/22000
|
||
|
450
|
18
|
460
|
454
|
451
|
1600/1800/2000/22000
|
||
|
500
|
20
|
511
|
505
|
502
|
1600/1800/2000/22000
|
||
|
550
|
22
|
562
|
556
|
553
|
1800/2000/2200/2400
|
||
|
600
|
24
|
613
|
607
|
604
|
2000/2200/2400/2700
|
||
|
650
|
26
|
663
|
659
|
656
|
2000/2200/2400/2700
|
||
|
700
|
28
|
714
|
710
|
707
|
2000/2200/2400/2700
|
||
Technical Characteristics of Graphite Electrode RP, HP, UHP
|
Name
|
Unit
|
Nominal Diameter
|
||||||
|
UHP Ultra-High-Power
|
HP Superstrong
|
RP Conventional Power
|
||||||
|
≤Φ400
|
≥Φ450
|
≤Φ400
|
≥Φ450
|
≤Φ300
|
≥Φ350
|
|||
|
Resistivity
|
Electrode
|
ΜΩ · m
|
≤5.5
|
≤6.5
|
≤8.5
|
|||
|
Nipple
|
≤4.5
|
≤5.5
|
≤6.5
|
|||||
|
Flexural Strength
|
Electrode
|
MPa
|
≥11.0
|
≥10.5
|
≥9.8
|
≥8.5
|
≥7.0
|
|
|
Nipple
|
≥20.0
|
≥16.0
|
≥15.0
|
|||||
|
Elastic Modulus
|
Electrode
|
GPa
|
≤14.0
|
≤12.0
|
≤9.3
|
|||
|
Nipple
|
≤18.0
|
≤16.0
|
≤14.0
|
|||||
|
Density
|
Electrode
|
g / cm3
|
≥1.66
|
≥1.67
|
≥1.62
|
1.6
|
≥1.53
|
≥1.52
|
|
Nipple
|
≥1.75
|
≥1.73
|
≥1.69
|
|||||
|
Coefficient Of Thermal Expansion
|
Electrode
|
10-6 / ºC
|
≤1.5
|
≤2.4
|
≤2.9
|
|||
|
Nipple
|
≤1.4
|
≤2.2
|
≤2.8
|
|||||
|
ASH
|
%
|
≤0.3
|
≤0.3
|
≤0.5
|
||||
|
Note: 1.Koeffitsient ash content and thermal expansion as the reference index, the coefficient of thermal expansion (100 ºC ~ 600
ºC), Custom manufacturing. |
||||||||
Technical Characteristics of High Density Graphite Electrode (HD)
|
Name
|
Unit
|
Nominal Diameter
|
||||||
|
75-200 mm
|
250-300mm
|
400-500mm
|
||||||
|
top grade
|
first grade
|
top grade
|
first grade
|
top grade
|
first grade
|
|||
|
Resistivity (Not More Than)
|
Electrode
|
ΜΩ · m
|
8.0
|
9.0
|
8.0
|
9.0
|
8.0
|
9.0
|
|
Nipple
|
7.5
|
7.5
|
7.5
|
|||||
|
Flexural Strength(not less than)
|
Electrode
|
MPa
|
10
|
9
|
8
|
|||
|
Nipple
|
13
|
13
|
13
|
|||||
|
Elastic Modulus(no more)
|
Electrode
|
GPa
|
12
|
12
|
12
|
|||
|
Nipple
|
14
|
14
|
14
|
|||||
|
Density(not less than)
|
Electrode
|
g / cm3
|
1.58
|
1.58
|
1.58
|
|||
|
Nipple
|
1.68
|
1.68
|
1.68
|
|||||
|
Coefficient Of Thermal Expansion (No More)
|
Electrode
|
10-6 / ºC
|
2.7.
|
2.7.
|
2.7.
|
|||
|
Nipple
|
2.5
|
2.5
|
2.5
|
|||||
|
Ash Content (not more than)
|
%
|
0.3
|
0.3
|
0.5
|
||||
|
Note: 1. The coefficient of ash content and thermal expansion as a reference index.
|
||||||||
Technical Characteristics of a Quasi-Superhigh-Gauge Graphite Electrode (EGPK-SHP)
|
Name
|
Unit
|
Nominal Diameter (mm)
|
||
|
300, 350, 400
|
450, 500
|
|||
|
Resistivity (not more than)
|
Electrode
|
ΜΩ · m
|
6.2
|
6.5
|
|
Nipple
|
5.5
|
5.5
|
||
|
Flexural Strength(not less than)
|
Electrode
|
MPa
|
10.5
|
10
|
|
Nipple
|
16
|
16
|
||
|
Elastic Modulus(no more)
|
Electrode
|
GPa
|
14
|
14
|
|
Nipple
|
18
|
18
|
||
|
Density(not less than)
|
Electrode
|
g / cm3
|
1.65
|
1.64
|
|
Nipple
|
1.72
|
1.7
|
||
|
Coefficient Of Thermal Expansion (no more)
|
Electrode
|
10-6 / ºC
|
1.5
|
1.5
|
|
Nipple
|
1.4
|
1.4
|
||
|
Ash Content (not more than)
|
%
|
0.3
|
0.3
|
|
|
Note: 1. Zonality as a reference index.
|
||||
Application:
Graphite electrodes are used mainly in ladle furnaces,electric-arc furnace steelmaking,Yellow phosphorus furnace , Industrial silicon furnace or melting copper. They are presently the only products available that have the high levels of electrical conductivity and the capability of sustaining the extremely high levels of heat generated in this demanding environment.High Quality Needle Coke in HP&UHP graphite electrode,ensure the electrode application is perfect. Graphite electrodes are also used to refine steel in ladle furnaces and in other smelting processes.
Properties:
1. Good electrical conductivity.
2. Strong thermal shock resistance.
3. High mechanical strength.
Variety:
1. RP (Regular Power)
2. HP (High Power)
3. UHP (Ultra High Power)
4. RPI (Regular Power Impregnated)
(Notice: All of Graphite Electrodes is equipped to tapered nipple
Advantages:
1.Anti-oxidation treatment for longevity.
2.High-purity,high-density,strong chemical stability.
3.High machining accuracy,good surface finishing.
4.High mechanical strength,low electrical resistance.
5.Resistant to cracking & spalling.
6.High resistance to oxidation and thermal shock.
2.High-purity,high-density,strong chemical stability.
3.High machining accuracy,good surface finishing.
4.High mechanical strength,low electrical resistance.
5.Resistant to cracking & spalling.
6.High resistance to oxidation and thermal shock.
Application
1. Electric arc steelmaking furnace.
1. Electric arc steelmaking furnace.
2. Ore-heating furnaces.
3. Resistance furnaces.
Quality Assurance & Control
· National Certified Laboratory
· Key testing instruments, including: specific resistor, bulk density meter, elasticmodulus meter, bending strength inspector, ash analysis meter, CTE analysis meter, etc.
· On-time instrument calibration
· On-site properties testing, including:
L-CTE,C-CTE
Specific resistance, bulk density,
Bending strength, ash content, elastic modulus
Production Application:
- Core application in Electric Arc Furnace (EAF) steelmaking (accounting for over 70% of global consumption): Conduct electricity to generate high-temperature electric arcs for melting scrap steel, producing construction steel, automotive steel and specialty steel
- Facilitate non-ferrous metal smelting: Smelt metals such as copper, nickel and lead; also used in vacuum remelting of refractory metals like titanium to achieve purification and uniform composition
- Produce key industrial materials: Manufacture metallurgical-grade silicon, polysilicon (for solar energy/semiconductors), as well as phosphorus and ferroalloys in submerged arc furnaces
- Serve the electrochemical industry: Act as anodes in electrolytic refining of metals like copper and gold for purification, or as current collectors in fuel cells to ensure stable electricity transmission
- Support specialized industries: Assist in high-temperature production of glass/ceramics (reducing energy consumption); also used in laboratory high-temperature experiments and electrochemical analysis
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