Basic Info.
Ampere Density
18-30A/cm�
Application Area
Steel Industry
Density
1.72 to 1.85 g/cm3
Specific Resistance
No More Than 8.5
Compressive Strenght
34 MPa Min
Transport Package
Wooden Case
Product Description
What is Graphite Electrode?
Graphite electrode, a conductor that releases electric energy in the form of an electric arc, is used to heat and melt the steel scraps in an electric arc furnace.
Graphite electrodes are an important part of the steelmaking industry as they play a vital role in the electric arc furnace (EAF) steelmaking process. These high-performance electrodes are made of graphite, a crystalline form of carbon, and are used as an electrically conductive material to transmit electrical energy to the electric arc furnace.
Why Graphite Electrode?Graphite electrodes are superior to other materials due to their high thermal conductivity, low thermal expansion, and excellent electrical conductivity.What graphite electrode used for? The electric arc furnace (EAF) steelmaking process involves the use of graphite electrodes to melt scrap steel and other raw materials in a furnace. Electrodes are placed into the furnace and current is passed through them to create an arc, which creates heat that melts the raw material. The molten steel is then cast into the desired shape.
Graphite electrodes are primarily used in the steelmaking industry, but they are also used to produce other metals such as aluminum and copper. They are available in a variety of diameters, lengths, and grades to suit different furnace sizes and steelmaking requirements. Advantages
Graphite electrodes offer several advantages over other materials used in the EAF steelmaking process. They have a higher melting point than steel, which allows them to withstand the high temperatures in a furnace without melting. They also have excellent thermal shock resistance, which means they can withstand rapid changes in temperature without cracking or breaking.
Another advantage of graphite electrodes is their ability to conduct electricity efficiently. This is important because the more efficient the electricity transmission, the faster the melting process and the more cost-effective the entire steelmaking process is. Additionally, graphite electrodes have a low coefficient of thermal expansion, which means they do not expand significantly when heated, reducing the risk of cracking or breaking during use.
Graphite electrodes are also environmentally friendly. They produce less smoke and emissions than other materials used in the steelmaking process, making them a more sustainable option for the industry.
In summary, graphite electrodes are an important part of the steelmaking industry and their importance cannot be overstated. They are a key component in EAF's steelmaking process, enabling efficient transmission of electrical energy to the furnace and producing high-quality steel products. Their unique properties, such as high thermal conductivity, low thermal expansion, and excellent electrical conductivity, make them a preferred choice over other materials. Additionally, their production process is environmentally friendly, making them a more sustainable option for the industry. As the steel demand continues to grow, the demand for graphite electrodes will undoubtedly grow with it.
The manufacturing process of graphite electrodes
The manufacturing process of graphite electrodes involves the use of high-quality petroleum coke and needle coke as raw materials. The raw material is crushed, mixed with coal tar pitch, and baked in a furnace at temperatures over 2,000°C to form solid graphite blocks. The blocks are then cut into the desired shape and size to produce the final product.
Classification of Graphite ElectrodesAccording to the electric furnace capacity, transformer power load, the difference of raw materials used in the electrodes production and the physical & chemical indexes of finished electrodes, the graphite electrodes are divided into three types:
UHP graphite electrode
HP graphite electrode
RP graphite electrode Technical data:Property | Unit | Regular power RP | Impregnated Electrode HD | High power HP | Ultra high power UHP |
≤φ400 | ≥φ450 | ≤φ400 | ≥φ450 | ≤φ400 | ≥φ450 | ≤φ400 | ≥φ450 |
Resistivity | Electrode | µΩ•m | 7.0-8.5 | 7.5-9.0 | 5.3-6.5 | 5.4-7.0 | 5.2-6.3 | 5.3-6.5 | 4.5-5.8 | 4.5-5.8 |
4.2-5.2 | 3.8-4.8 | 3.5-4.5 | 3.4-4.0 |
Nipple |
Flexural strength | Electrode | Mpa | 7.5-9.5 | 7.0-8.5 | 10.5-15 | 10.5-15 | 10.5-15 | 10.5-15 | 10-15 | 10-15 |
Nipple | 17-22 | 18-24 | 20-26 | 21-30 |
Modulus of elasticity | Electrode | Gpa | 6.0-9.0 | 9-12 | 9-12 | 9-12 |
Nipple | 12-16 | 13-18 | 13-18 | 15-20 |
Ash | Electrode | % | 0.4 | 0.3 | 0.2 | 0.2 |
Nipple |
Bulk density | Electrode | G/cm3 | 1.54-1.62 | 1.64-1.72 | 1.65-1.72 | 1.66-1.73 |
Nipple | 1.72-1.77 | 1.74-1.79 | 1.75-1.81 | 1.77-1.84 |
Thermal Expansion | Electrode | 10.6/ºC | 2.0-2.4 | 1.9-2.3 | 1.6-1.8 | 1.1-1.5 |
1.5-2.0 | 1.3-1.8 | 1.3-1.5 | 0.9-1.2 |
Nipple |
The advantages of our factory:
1. We have many years of experiences in graphite industry, we choose the most proper materials for your application.
2. We have been exporting to customers in Europe, Asia, USA, Canada, Australia and etc.
3. We have many professional CNC machines.
4. We have a wide range of superior materials: isostatic graphite, Vibration Graphite, Extruded graphite, die molded graphite.
5. We have our own graphite material production facility, and enough stocking materials, to provide you a good and stable price.
6. We have professional engineering and technical team, prefessional international trading team to offer you professional services. Advanced Equipments: Rigorous quality control procedure:
Initial production inspection
During Production Inspection
Pre-shipment inspection/Final inspection Our Services:Efficiency: Your einquiry will be replied with 24 hours
Fast Delivery: Our produciton capability and enough mateiral stocks will make sure fast devevery
Customization: We provided OEM services based on your design and drawings
Design Service: Our professional and experienced enigneers team can disign for you, if you need
Quality and Price: We offer you high quality graphite products with the most competitive price
After-sales Services: Tracking service for feedbacks of our graphite products, and we will be responsilbe for quality problem. Shipping Methods:
Address:
No. 11 Jiefang East Roas, Cagnzhou Economic Development Zone, Cangzhou, Hebei, China
Business Type:
Manufacturer/Factory
Business Range:
Manufacturing & Processing Machinery
Management System Certification:
ISO 9001
Company Introduction:
Hebei Hang Carbon Technology Co., Ltd. is a manufacturer integrating research and development, production, import, export and after-sales of graphite products. It can provide the fastest delivery service for global customers, with convenient transportation. Since its establishment, the company has been focusing on new carbon and graphite material industry, providing new personalized solutions for global users. The product quality is stable and the performance is excellent, and the main technical indicators have reached or exceeded the same level at home and abroad. Our products are now widely used in electronic semiconductor, solar photovoltaic, environmental protection, machining, industrial furnace high temperature treatment, non-ferrous metal smelting and casting, electrical discharge machining, diamond sintering mold, chemical industry, aerospace industry and other industries.
Hebei Hang Carbon Technology Co., Ltd. Produces graphite raw materials such as extruded graphite, vibration graphite, high-purity molded graphite, isostatic graphite, etc., and has a long-term and stable cooperative relationship with the world′s three major graphite manufacturers - German SGL, French Roland Graphite, and Japan Toyo Graphite, which can be used for domestic users. Provide imported graphite materials. In addition to mechanical processing, we also provide post-processing services such as graphitization and purification to provide customers with products and services at favorable prices.
The purpose of Hebei Hang Carbon is to treat every customer with integrity, to provide customers with better products at reasonable prices and perfect services, one-time cooperation, life-long trust. We work closely with customers to understand the needs of each customer through communication to ensure that products are delivered to customers on time. Hebei Hang Carbon hopes to add value-added services to customers through products, production and services. With the hard work of Hebei Hang Carbon people, we are now a long-term partner of some domestic and foreign enterprises.