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Top Quality 75-650mm UHP Graphite Electrode with Low Consumption for Steel Mill
| 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
Top Quality 75-650mm UHP Graphite Electrode with Low Consumption for Steel Mill
Description:
Graphite electrode raw materials use the domestic petroleum coke and pitch coke and imported Japanese needle coke .HP grade graphite electrode contain 30% imported needle coke. UHP graphite electrode contain more than 80% imported needle coke. They are widely used in electric arc furnace(EAF), ladle furnace(LF) for the production of alloy steel, metal and nonmetallic materials. They are characterized by low resistance, good electric and thermal conductivity, high resistance to oxidation and thermal shock, high mechanical strength, etc
Specification
| Graphite Electrode Technical data | |||||||
| Specification | RP | HP | UHP | ||||
| φ200-300 | φ350-600 | φ200-400 | φ450-600 | φ250-400 | φ450-600 | ||
| Electrical Resistivity μ Ω.m ≤ |
Electrode | 8.5 | 6.5 | 5.5 | |||
| Nipple | 6.5 | 5.5 | 4.5 | ||||
| Bulk Density g/cm3 ≥ |
Electrode | 1.53 | 1.52 | 1.62 | 1.6 | 1.67 | 1.66 |
| Nipple | 1.69 | 1.73 | 1.75 | ||||
| Flexural Strength ≥Mpa |
Electrode | 8.5 | 7 | 10.5 | 9.8 | 11 | |
| Nipple | 15 | 16 | 20 | ||||
| Elastic Modulus Gpa ≤ |
Electrode | 9.3 | 12 | 14 | |||
| Nipple | 14 | 16 | 18 | ||||
| Ash % ≤ |
Electrode | 0.5 | 0.3 | 0.3 | |||
| Nipple | 0.5 | 0.3 | 0.3 | ||||
| CTE(100ºC-600ºC) 10 -6/ºC ≤ |
Electrode | 2.9 | 2.4 | 1.5 | |||
| Nipple | 2.7 | 2.2 | 1.4 | ||||
* High density, high temperature resistance, high mechanical strength and strong chemical stability.
* The surface can be treated with anti-oxidation.
* Corrosion resistance, strong acid and alkali resistance.
* Excellent thermal shock resistance, electrical conductivity and thermal conductivity.
* Strong wear resistance and lubricating performance.
* Long service life.
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
Exceptional High-Temperature Resistance & Thermal Stability
Graphite electrodes deliver unrivaled high-temperature performance, with a sublimation temperature of 3650–3697°C, enabling stable operation above 2500°C—far exceeding metal electrodes' heat resistance limits. Their ultra-low thermal expansion coefficient (just 1/40 of steel) grants excellent thermal shock resistance, preventing cracking during rapid temperature swings in smelting or frequent equipment startups. Premium needle coke raw materials optimize their crystal structure, boosting stability and service life in ultra-high-power applications. In electric arc furnace steelmaking, they maintain structural integrity at 3000°C arc temperatures, while in silicon pulling furnaces, they ensure precise temperature control, elevating crystal yield. This reliability minimizes downtime, enhances production continuity, and delivers long-term value for metallurgical and high-temperature industrial processes.
Superior Electrical Conductivity & Energy Efficiency
Graphite electrodes feature outstanding electrical conductivity, driven by their hexagonal crystal structure with free-moving electrons, resulting in ultra-low resistivity (as low as 5.5 μΩ·m for premium grades). This minimizes power loss during current transmission, cutting energy consumption significantly. In electric arc furnace steelmaking, practical data shows they reduce unit power use by 15% and shorten smelting time by 20%, lowering costs per ton of steel. Their excellent thermal conductivity (100–150 W/(m·K)) dissipates heat efficiently, avoiding local overheating and extending service life. Unlike metal electrodes that degrade at high currents, graphite maintains stable conductivity long-term, reducing replacements and maintenance. Aligned with global decarbonization goals, they are the ideal energy-saving choice for green industrial transformation.
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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