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Пропитанный графитовый электрод диаметром 75-130 мм от китайских поставщиков и фабрики - модель RB-IGP-1
Product Overview
Quick Product Details
Product Name: Impregnated Graphite Electrode
Origin: Hebei, China
Brand: Rubang Carbon
Model Number: RB-IGP-1
Type: Graphite Electrode
Nipple: 3TPI
Raw Material: Needle Petroleum Coke
Application: Steel Melting
Length: 800 ~ 1500 mm
Advantage: Low Consumption
Color: Black
Grade: Impregnated Grade A / B
Chemical Composition
Fixed Carbon ≥ 99%
Volatile Matter ≤ 0.3%
Ash ≤ 0.3%
Physical Properties
Resistance: 5.5 – 7 μΩ·m
Apparent Density: 1.60 – 1.75 g/cm³
Thermal Expansion: 1.5 ~ 2.5 ×10⁻⁶ / (100–600 ℃)
Flexural Strength: 8–12 MPa
Elastic Modulus: 8.50 ~ 15.50 GPa
Current Capacity: 1.3–4.2 kA
| Impregnated Graphite Electrodes — Physicochemical Index | |||||||||||
| Description | Type | Unit | Nominal Diameter (mm) | ||||||||
| Ø75–130 | Ø150–200 | Ø250–350 | Ø400–500 | Ø550–600 | |||||||
| Grade | Grade | Grade | Grade | Electrode for Submerged Arc Furnace | |||||||
| Superior | First | Superior | First | Superior | First | Superior | First | ||||
| A | B | A | B | A | B | A | B | Mineral Smelting | |||
| Electrical Resistance (≤) | Electrode | μΩ·m | 6.5 | 7.0 | 7.0 | 7.5 | 7.0 | 7.5 | 7.0 | 7.5 | 7.5 |
| Nipple | 6.0 | 6.0 | 5.8 | 5.5 | 5.5 | ||||||
| Flexural Strength (≥) | Electrode | MPa | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | ||||
| Nipple | 14.0 | 14.0 | 16.0 | 16.0 | 16.0 | ||||||
| Young's Modulus (≤) | Electrode | GPa | 12.0 | 12.0 | 12.0 | 14.0 | 14.0 | ||||
| Nipple | 16.0 | 16.0 | 16.0 | 18.0 | 18.0 | ||||||
| Bulk Density (≥) | Electrode | g/cm³ | 1.64 | 1.64 | 1.62 | 1.62 | 1.62 | ||||
| Nipple | 1.70 | 1.70 | 1.70 | 1.70 | 1.70 | ||||||
| CTE (≤) | Electrode | ×10-6/℃ | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | ||||
| Nipple | 2.2 | 2.2 | 2.2 | 1.6 | 1.6 | ||||||
| Ash (≤) | — | % | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | ||||
| Note: Ash content and coefficient of thermal expansion are reference parameters. | |||||||||||
Manufacturing Process
Graphite electrodes are manufactured from high-quality, low-ash raw materials: petroleum coke, needle coke, and coal tar pitch. The production cycle includes calcination, crushing, screening, batching, mixing, forming, roasting, impregnation, graphitization, and final CNC machining. Thanks to low resistivity, high electrical conductivity, minimal ash content, dense structure, oxidation resistance, and mechanical strength, these electrodes are the optimal current-conducting material for arc and melting furnaces.
Applications
- Ladle Furnaces
- Electric Arc Steelmaking Furnaces
- Yellow Phosphorus Production Furnaces
- Silicon Metal or Copper Smelting Units
- Ladle-Furnaces & Steel Refining Processes
Business Terms & Conditions
🚢 Delivery: FOB, CFR, CIF, EXW, DDP
💱 Currency: USD, EUR, JPY, CAD, CNY, AUD
💳 Payment: T/T, L/C, D/P, D/A, Western Union, Cash
🏗️ Port: Xingang or Qingdao, China
Packaging Details
📦
Packed in wooden cases / crates and strapped with metal control bands.
Transportation & Installation Guide
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1Store and transport electrodes in dry conditions, free from vibration and impact. Drying is mandatory before use.
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2Before installing the nipple, clean the threaded hole with compressed air. Tighten carefully to avoid damaging the thread.
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3When joining electrodes, clean the end faces with compressed air, maintaining a gap of 20–30 mm.
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4Tighten the connection with a torque wrench to the specified torque, ensuring a minimum gap of 0.05 mm.
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5To avoid breakage, do not allow the electrodes to jam.
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6Load large charge materials into the upper part of the furnace.
Company Profile
Company Overview
Business Type: Manufacturer / Factory
Main Products: Graphite Electrodes, Graphite Blocks, Carbon Materials, CPC Products
Employees: 150
Founded: 2014
Certification: ISO 9000
Location: Hebei, China (Mainland)
Brand: Rubang Carbon
Factory Information
Factory Size: 8,000–10,000 m²
Location: Handan City, China
Production Lines: 5
OEM: Rubang Carbon or OEM with buyer's label
Annual Revenue: USD 50–80 Million
China Domestic: 40%
Eastern Europe: 15%
Middle East: 15%
East Asia: 20%
Americas: 10%
Frequently Asked Questions (FAQ)
What raw materials are used in the production of impregnated graphite electrodes?
Impregnated graphite electrodes are manufactured from high-quality, low-ash raw materials, including petroleum coke, needle coke, and coal tar pitch. These materials ensure low resistivity, high conductivity, and excellent mechanical strength.
What diameter sizes are available for the impregnated graphite electrodes?
The electrodes are available in nominal diameters ranging from Ø75 mm to Ø600 mm, covering sizes Ø75–130, Ø150–200, Ø250–350, Ø400–500, and Ø550–600 mm, suitable for various furnace types and applications.
What are the main applications of impregnated graphite electrodes?
These electrodes are widely used in electric arc steelmaking furnaces, ladle furnaces, yellow phosphorus production furnaces, silicon metal or copper smelting units, and various steel refining processes.
What quality certifications does Rubang Carbon hold?
Rubang Carbon is certified under ISO 9000 quality management system, ensuring consistent product quality and reliable manufacturing standards across all production lines.
What payment methods and shipping terms are accepted?
Accepted payment methods include T/T, Letter of Credit (L/C), D/P, D/A, Western Union, and cash. Available shipping terms are FOB, CFR, CIF, EXW, and DDP. Shipments are made from Xingang or Qingdao ports in China.
How should impregnated graphite electrodes be stored and handled?
Electrodes must be stored and transported in dry conditions, protected from vibration and impact. Before use, mandatory drying is required. During installation, thread holes should be cleaned with compressed air, and connections should be tightened using a torque wrench to the specified torque value.