Dia 75mm-700mm L1800-2700mm Graphite Electrode For Steel Making
Classification of graphite electrodes
Based on the capacity of the electric furnace, the power load of the transformer, the different raw materials used in electrode production, and the physical and chemical indicators of the finished electrodes, graphite electrodes are classified into three types:
Large-diameter UHP graphite electrodes.
UHP graphite electrodes.
They are made from high-quality needle coke and undergo longitudinal graphitization (LWG) treatment. The graphitization temperature can reach 2800°C-3000°C. The finished product has low resistance, small linear expansion coefficient, good thermal shock resistance, and allows a high current density.
HP graphite electrodes with black joints.
HP graphite electrodes.
They are made from high-quality petroleum coke or low-grade needle coke. Their physical and mechanical properties are better than RP graphite electrodes, such as low resistance and high allowable current density.
There are two types of regular power graphite electrodes.
RP graphite electrodes.
They are produced using regular-grade petroleum coke. This type of graphite electrode has a lower graphitization temperature and a lower allowable current density than HP graphite electrodes. The allowable current density of regular power graphite electrodes is less than 17A/cm2.
Specifications for RP, HP, UHP graphite electrodes with nipples:
| RP |
HP |
UHP |
Electrode:
Bulk Density≥ 1.56g/cm3
Specific Resistivity≤ 8.5μm
Bending Strength≥ 10.0MPa
Elastic Modulus≤ 9.3GPa
Thermal Expansion Coefficient≤ 2.7x10 -6/°C
Ash≤ 0.5%
Nipple:
Bulk Density≥ 1.68g/cm3
Specific Resistivity≤ 7.0μm
Bending Strength≥ 14.0MPa
Elastic Modulus≤ 13.7GPa
Thermal Expansion Coefficient≤ 2.5 x10 -6/°C
Ash≤ 0.5% |
Electrode:
Bulk Density≥ 1.65g/cm3
Specific Resistivity≤ 6.5μm
Bending Strength≥ 12.0MPa
Elastic Modulus≤ 10.0GPa
Thermal Expansion Coefficient≤ 2.2x10 -6/°C
Ash≤ 0.3%
Nipple:
Bulk Density≥ 1.74g/cm3
Specific Resistivity≤ 5.5μm
Bending Strength≥ 16.0MPa
Elastic Modulus≤ 14.0GPa
Thermal Expansion Coefficient≤ 2.0 x10 -6/°C
Ash≤ 0.3% |
Electrode:
Bulk Density≥ 1.68g/cm3
Specific Resistivity≤ 5.8μm
Bending Strength≥ 16.0MPa
Elastic Modulus≤ 14.0GPa
Thermal Expansion Coefficient≤ 1.9x10 -6/°C
Ash≤ 0.2%
Nipple:
Bulk Density≥ 1.76g/cm3
Specific Resistivity≤ 4.5μm
Bending Strength≥ 18.0MPa
Elastic Modulus≤ 16.0GPa
Thermal Expansion Coefficient≤ 1.4 x10 -6/°C
Ash≤ 0.2% |
Packing & Delivery
REMARK: the above data is just on standard of YB/T, the actual product is big different from the above. For the actual, be free to contact us, please.
Service: We can supply you with free samples, a booklet, a laboratory test report, an Industry Report, etc.
Welcome to our factory and company for a visit!
Company profile
zhenAn has been in the business of ferroalloy for 30 years now. It is a leading manufacturer and supplier of ferro silicon,silicon manganese,silicon metal,silicon carbide,high carbon silicon and so on.our company is a large-sized production enterprise integrating research, development, production and sales.
Our company locates in Anyang city,Henan province of China a total area of about 15,000 square.With many years growing and developing,our company has domestic advanced smelting furnaces,crushing and screening production lines with annual output of 20000 tons.At the some time has two laboratories and a metallurgical materials testing center with dozens of senior researchers.The products are supplied to many large and medium-sized iron and steel enterprises in China, and exported to Japan, Korea, India, Europe and the United States.
RFQ
How about the capacity?
High output, with an annual output of 80,000 tons, timely delivery; guarantee delivery date.
How to guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment.
What can we buy from you?
Graphite electrode,electrode paste,carbon raiser,carbon product, and other graphite products.
How to confirm the grade of graphite electrode?
Please send inquiry to us, our sales manager will confirm the details and price for you.
Customers will be asked to provide electric arc furnace parameters and specifications and sizes of electrode.
What is your payment service?
Accepted Delivery Terms: FOB, CFR, CIF, EXW;
Accepted Payment Currency: USD, EUR, CNY;
Accepted Payment Type: T/T, L/C;
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