| Type: | Graphite Electrodes |
|---|---|
| Composition: | Petroleum Coke |
| Carbon Content: | High-Carbon |
| Grade: | UHP |
| Forming Way: | Molded Graphite |
| Crystal Morphology: | Flake Graphite |
| Samples: |
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| Customization: |
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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.
Application Of Graphite electrodes:
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.
Characteristics Of Graphite electrodes:
Our graphite electrodes are with low electric resistance, high density, high anti-oxidation capability, precise machining accuracy, especially with low sulphur and low ash will not give steel second time
1. Low electric resistance
2. High density
3. Good electrical conductivity
4. High anti-oxidation capability
5. Precise machining accuracy
6. Low sulphur and low ash, not give steel second time impurity
The Length & Diameter & Permissible Deviation of Graphite Electrode
| Nominal Diameter | Actual Diameter | Length (mm) | Tolerance | ||||
| MM | Inch | Poppy | 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. | ||||||||
| 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. | ||||||||
| 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. | ||||
Graphite electrodes Application
1.For arc furnaces of electric arc furnaces. Graphite electrodes are most often used in a coal-smelting electric furnace.
2.For a closed arc
3.For a resistor furnace
4.For the production of graphite shaped products. The graphite electrode blank is also used for processing in various crucibles,shapes, boats and heating elements and other graphite products. For example, in the quartz glass industry, for each production of 1 ton of an electric melting tube, a graphite electrode 10 m is required, for each quartz brick of 1 ton it is necessary to consume 100 kg of graphite electrode.
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Packaging: 1. Standard export carton/plywood crate 2. Customized shipping mark 3. QC Department Will Check In Case The Packing Method Isn't Safe Enough.
Shipping: 1.By courier,like DHL,UPS,FEDEX,etc.It is door to door,usually,3-4 days to arrive. 2.By air to the air port,usually,5-7 days to arrive. 3.By sea to sea port,usually,15-30 days to arrive.
Zhengzhou Rongsheng Refractory Material CO., LTD. Established in the early nineties of twenty century, with continuous innovation and development, now it is a comprehensive enterprise in refractory materials industry, covering metallurgy,building materials, electric power, chemical industry etc.
Our main products: refractory material for industrial furnaces, such as high-alumina brick, clay brick, silicon brick, high-strength diatomite brick, light weight insulation brick, low iron mullite brick, etc.; anti-stripping alumina brick, alkali proof brick, phosphate brick for cement industry; For the industrial furnace and power boiler, we can provide abrasive brick, corundum brick, mullite brick, wear resistant castable, corundum castable, high strength low cement castable, impervious material, plastic refractory, etc.
Rongsheng Refractory insists on pursuing the management idea of "honest, courtesy, innovation and professionalism" as the purpose,taking the "low price for better quality" as the foundation of enterprise development and creating "Rongsheng Brand" as the enterprise strategic goal. And Rongsheng provides satisfying, timely and efficient service for customers based on scientific management process, complete customer information management system and abundant products types.
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Q: What about the lead time for mass product?
A: The lead time is based on the quantity, about 7-12days. For graphite product, apply Dual-use items license need about 15-20
working days.
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