Since establishment, our company has been focusing on the field of Castable For Aluminium Melting Furnace, Alumina Regenerative Ball, Castable For Wall Of Ladle, with strong R&D capabilities and rich strategic experience. Our company adheres to the principle of good faith and win-win, and develops business cooperation with business friends at home and abroad. We are willing to grow together with you, to be your loyal partner, providing you with the most professional and considerate service. Relying on a variety of advanced equipment, we continuously improve product quality with systematization and modularization to ensure that the product is the best when customer received.
1,Description of Graphite Electrode for Roughing Furnace
The product is made of high-grade needle coke.The graphitization heat treatment temperature is as high as 2800-3000℃. The resistivity of the product is lower, such as ＜5.5μΩ•m. It allows higher current density, smaller expansion coefficient and excellent thermal shock resistance.
The graphite electrode products we supply are used in roughing furnace and refining furnaces. They have three quality grades: RP, HP and UHP. They are divided into various specifications according to their diameters and lengths. It is a good conductive and heat conductive high temperature product for steelmaking.
The product we supply has a low consumption rate per ton of steel.in roughing furnace, the consumption rate of UHP product per ton steel is less than 1.8kg, and in refining furnace, the consumption rate of UHP product per ton steel is less than 0.5kg.
The product is black and cylindrical.
2,The specifications included in the product are as follows:
UHPφ500~700
3,The consumption rate of product per ton steel is≤3.5kg/ton steel. Due to the different types of steel smelted by different customers and the different operating environments, the consumption rate of steel per ton of products varies. The typical consumption rate of steel per ton of the products we supply is≤2.2kg.
4,Permissible Current Load and Current Density of Graphite Electrode Products with Different Specifications:
Ultra High Power | ||
Nonminal Diameter mm | Current Load (A) | Current Density (A/cm2) |
500 | 38000-55000 | 18-27 |
550 | 42000-66000 | 17-26 |
600 | 49000-76000 | 17-26 |
5,Application of Graphite Electrode for Roughing Furnace: Used in roughing furnace
6,Major raw materials used in products:imported needle coke (Japan, USA), domestic high-grade petroleum coke, natural graphite powder and coal tar pitch binder.
7,Simple process of product production: raw material calcination, proportioning, kneading, shaping, roasting, impregnation, graphitization, machining and packaging.
8,Product index:
Item | Ultra high Power | ||
Φ300-400 | φ450-700 | ||
Resistivity μΩ•m
≤(Max) | Electrode | 5.5 | |
Nipple | 4.5 | ||
Bulk density g/cm3 ≥(min) | Electrode | 1.67 | 1.66 |
Nipple | 1.75 | ||
Modulus of rupture Mpa ≥(min) | Electrode | 11.0 | |
Nipple | 20.0 | ||
Young's modulus Gpa ≤(Max) | Electrode | 14.0 | |
Nipple | 18.0 | ||
Ash % ≤(Max) | Electrode | 0.3 | |
Nipple | 0.3 | ||
CTE(100-600℃) 100-6 /℃ ≤(Max) | Electrode | 1.5 | |
Nipple | 1.4 | ||
Real density g/cm3 | Electrode | 2.2-2.23 | |
Nipple | 2.23-2.25 | ||
Porosity % | Electrode | 23-25 | |
Nipple | 19-22 | ||
9.Good feedback of product use effect,the products have been exported to Australia,Mexico, Morocco
10.We are a professional supplier, who can provide customers with free product technology, use and other issues.
Do you want to find a professional supplier of graphite electrodes?
Do you want to find a stable and credible supplier?
Then please contact with us
Contact me:
Email:wp@cnjingganrefractory.com/sdwenping@163.com
TEL: 86-0533-4188518 / FAX: 86-0533-4188518
Rose:+86-13275332819(wechat/whatsapp number)
We hope to develop more humane products, and continuously inject high-quality and humanistic spirit into every Graphite Rod Blank with Best Price Used in Steel Industry we develop. We adhere to the principles of creating products with science, making progress with technology, and developing new businesses with the market. Our company takes the market demand as the guidance, innovation and development as the driving force.
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