Online Exporter Ji Lin Carbon - UHP GRAPHITE ELECTRODE – Low Electrical Resistance, High Density – Aohui
Online Exporter Ji Lin Carbon - UHP GRAPHITE ELECTRODE – Low Electrical Resistance, High Density – Aohui
Online Exporter Ji Lin Carbon - UHP GRAPHITE ELECTRODE – Low Electrical Resistance, High Density – Aohui Detail:
DESCRIPTION
UHP graphite electrode is used for the recycling of steel in the electric arc furnace industry. Its main ingredient is high-value needle coke which is made from either petroleum or coal tar. Graphite electrodes are finished with a cylinder shape and machined with threaded areas at each end. In this way, the graphite electrodes can be assembled into an electrode column using electrode nipple.
In order to meet the requirement of higher work efficiency and lower total cost, large capacity ultra-high power arc furnaces are becoming more and more popular. Because of this, UHP graphite electrodes with diameters of over 500 mm will dominate market.
FEATURE
Withstand large currents, high discharge rate.
Good dimension stability, not easy to deform.
Resistant to cracking & spalling.
High resistance to oxidation and thermal shock.
High mechanical strength, low electrical resistance.
High machining accuracy, good surface finishing.
APPLICATION
Graphite electrodes are widely used for production of alloy steels, metal and other nonmetallic materials, etc.
DC electric arc furnace.
AC electric arc furnace.
Submerged arc furnace.
Ladle furnace.
SPECIFICATION
Table 1: Technical Specification of UHP Graphite Electrode
| Dia. | Resistance | Density | Flexure Strength | Elastic Modulus | Ash Content | CTE | Current Load | Current Density |
| (inch) | (≤, µΩ·m) | (≥, g/cm3) | (≥, MPa) | (≤, GPa) | (≤, %) | (100 °C – 600 °C) | (A) | (A/cm2) |
| (≤, 10-6/°C) | ||||||||
| 10 | 5.5 | 1.67 | 11 | 14 | 0.3 | 1.5 | 8100–12200 | 20–30 |
| 12 | 5.5 | 1.67 | 11 | 14 | 0.3 | 1.5 | 15000–22000 | 20–30 |
| 14 | 5.5 | 1.67 | 11 | 14 | 0.3 | 1.5 | 20000–30000 | 20–30 |
| 16 | 5.5 | 1.67 | 11 | 14 | 0.3 | 1.5 | 25000–40000 | 19–30 |
| 18 | 5.5 | 1.66 | 11 | 14 | 0.3 | 1.5 | 32000–45000 | 19–27 |
| 20 | 5.5 | 1.66 | 11 | 14 | 0.3 | 1.4 | 38000–55000 | 18–27 |
| 22 | 5.5 | 1.66 | 11 | 14 | 0.3 | 1.4 | 42000–66000 | 17–26 |
| 24 | 5.5 | 1.66 | 11 | 14 | 0.3 | 1.4 | 49000–76000 | 17–26 |
Table 2: Graphite Electrode Size & Tolerance
| Diameter (mm) | Length (mm) | ||||||
| Nominal Diameter | Actual Diameter | Nominal Length | Tolerance | Short Length | |||
| (inch) | (mm) | (max.) | (min.) | (rough spot) | |||
| 10 | 250 | 256 | 251 | 248 | 1600/1800 | ±100 | -275 |
| 12 | 300 | 307 | 302 | 299 | 1600/1800 | ||
| 14 | 350 | 357 | 352 | 349 | 1600/1800 | ||
| 16 | 400 | 409 | 403 | 400 | 1600/1800/2000/2200 | ||
| 18 | 450 | 460 | 454 | 451 | 1600/1800/2000/2200 | ||
| 20 | 500 | 511 | 505 | 502 | 1800/2000/2200/2400 | ||
| 22 | 550 | 562 | 556 | 553 | 1800/2000/2200/2400 | ||
| 24 | 600 | 613 | 607 | 604 | 2000/2200/2400 | ||
SURFACE QUALITY
There should be less than two defects or holes on the electrode surface, the maximum size of which is mentioned in the below chart.
There should be no transverse crack on the electrode surface. For the longitudinal crack, the length should be less than 5% of the electrode circumference and the width should be 0.3 to 1.0 mm.
The width of black area on electrode surface should be less than 1/10 of the electrode circumference and the length should be less than 1/3 of the electrode.
| SpecificationDefect Dimension | Nominal Diameter of Graphite Electrode (mm) | |
| 300–400 | 450–600 | |
| Diameter (mm) | 20–40 | 30–50 |
| (< 20 mm should be negligible) | (< 30 mm should be negligible) | |
| Depth (mm) | 5–10 | 10–15 |
| (< 5 mm should be negligible) | (< 10 mm should be negligible) | |
Product detail pictures:
Related Product Guide:
Our concentrate on is always to consolidate and enhance the excellent and service of present solutions, in the meantime regularly develop new products to meet distinctive customers' demands for Online Exporter Ji Lin Carbon - UHP GRAPHITE ELECTRODE – Low Electrical Resistance, High Density – Aohui , The product will supply to all over the world, such as: Saudi Arabia, Pakistan, Singapore, We aim to become the modern enterprise with the commercial ideal of "Sincerity and confidence" and with the aim of "Offering customers the most sincere services and best quality products". We sincerely ask for your unchanged support and appreciate your kind advice and guidance.
Q1: Is your company AO HUI a manufacturer or trader?
A1: Manufacturer, some time we help our clients to purchase relevant products as a trader.
Q2: What’s the MOQ?
A2. No limitation.
Q3: Can we visit your factory?
A3: Of course ,welcome at any time,seeing is believing
Q4: What’s your payment terms?
A4: Negotiation
Q5: Is your company accept customization?
A5: Professional technology teams and engineers all can satisfy you.
Q6: How do you guarantee quality?
A6: For every production processing,we have complete QC system for the chemical composition and Physical properties.After production,all the goods will be tested ,and the quality certificate will be shipped along with goods.
Q7: What’s the proportion of abroad business?
A7: Abroad market around 50%; Domestic market around 50%; and now export proportion is increasing.
Q8: Your company would provide samples?
A8: Yes, we could supply samples for free, and the freight will be undertaken by clients.
By Patricia from Wellington - 2018.09.12 17:18
Wide range, good quality, reasonable prices and good service, advanced equipment, excellent talents and continuously strengthened technology forces，a nice business partner.
By Bernice from Mumbai - 2017.10.25 15:53
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